A benign tumor composed of bone tissue or a hard tumor of bonelike structure developing on a bone (homoplastic osteoma) or on other structures (heteroplastic osteoma). (From Dorland, 27th ed)
Benign circumscribed tumor of spongy bone occurring especially in the bones of the extremities and vertebrae, most often in young persons. (Dorland, 27th ed)
A benign, painful, tumor of bone characterized by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. (From Dorland, 27th ed; Stedman, 25th ed)
Tumors or cancer located in bone tissue or specific BONES.
A variant of ADENOMATOUS POLYPOSIS COLI caused by mutation in the APC gene (GENES, APC) on CHROMOSOME 5. It is characterized by not only the presence of multiple colonic polyposis but also extracolonic ADENOMATOUS POLYPS in the UPPER GASTROINTESTINAL TRACT; the EYE; the SKIN; the SKULL; and the FACIAL BONES; as well as malignancy in organs other than the GI tract.
Spinal neoplasms are abnormal growths or tumors that develop within the spinal column, which can be benign or malignant, and originate from cells within the spinal structure or spread to the spine from other parts of the body (metastatic).
Neoplasms of the bony part of the skull.
Femoral neoplasms refer to abnormal growths or tumors, benign or malignant, located in the femur bone or its surrounding soft tissues within the thigh region.
Tumors or cancer of the MANDIBLE.
Tumors of the choroid; most common intraocular tumors are malignant melanomas of the choroid. These usually occur after puberty and increase in incidence with advancing age. Most malignant melanomas of the uveal tract develop from benign melanomas (nevi).
Presence of air or gas within the intracranial cavity (e.g., epidural space, subdural space, intracerebral, etc.) which may result from traumatic injuries, fistulous tract formation, erosions of the skull from NEOPLASMS or infection, NEUROSURGICAL PROCEDURES, and other conditions.
A light and spongy (pneumatized) bone that lies between the orbital part of FRONTAL BONE and the anterior of SPHENOID BONE. Ethmoid bone separates the ORBIT from the ETHMOID SINUS. It consists of a horizontal plate, a perpendicular plate, and two lateral labyrinths.
Tumors or cancer of the PARANASAL SINUSES.
One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.
Subspecialty of radiology that combines organ system radiography, catheter techniques and sectional imaging.
A carpal bone which is located between the TRAPEZIUM BONE and the CAPITATE BONE.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
A specialty concerned with the diagnosis and treatment of foot disorders and injuries and anatomic defects of the foot.
A polyspecific transporter for organic cations found primarily in the kidney. It mediates the coupled exchange of alpha-ketoglutarate with organic ions such as P-AMINOHIPPURIC ACID.
The head of a long bone that is separated from the shaft by the epiphyseal plate until bone growth stops. At that time, the plate disappears and the head and shaft are united.

Osteoid osteoma. Direct visual identification and intralesional excision of the nidus with minimal removal of bone. (1/89)

We describe 100 consecutive patients with osteoid osteoma. Of the 97 who had operations, 89 were treated by intralesional excision and eight by wide resection. The three remaining patients were not operated on because the osteoid osteoma was almost painless, or was found in the pedicle of the 12th thoracic vertebra at the site of entrance of the artery of Adamkjewicz. The diagnosis was confirmed histologically in all specimens. No local recurrences were observed at a minimum follow-up of one year. All except one patient were mobilised two to four days after surgery. A precise preoperative diagnosis of the lesion is mandatory, based on clinical findings, standard radiographs, thin-section CT and a bone scan. We compared our operative technique with 247 cases in which the percutaneous technique of removal or coagulation of the nidus had been performed. The latter procedure has a less constant rate of primary cure (83% v 100%). Its principal indication appears to be for osteoid osteomas in the proximal femur and the pelvis.  (+info)

Osteoid osteoma: resection with CT guidance. (2/89)

BACKGROUND: Osteoid osteoma is a benign bone lesion characterized by nocturnal pain mostly, which may be relieved by non-steroidal prostaglandin inhibitors. Treatment by complete resection of the nidus immediately relieves the pain. Intraoperative location of the nidus may be difficult, and extensive bone resection may be necessary to ensure complete excision. Few studies have described resection of osteoid osteoma under CT guidance, and little attention has been given to lesions near the neurovascular bundle. OBJECTIVE: To report our results of osteoid osteoma resection under CT guidance, with specific attention to lesions lying near the neural structure. METHODS: Nine patients with suspected osteoid osteoma underwent resection with a 6.8 mm core drill under CT guidance. RESULTS: Histologic confirmation was obtained in seven patients, while in two there was no evidence of the nidus in the excised bone material. All nine reported complete pain relief immediately after the surgery. Postoperative CT scan showed complete removal of the osteoid osteoma. CONCLUSIONS: Removal of osteoid osteoma under CT guidance is simple, safe and allows complete removal of the nidus with low morbidity.  (+info)

Intraarticular osteoid osteoma associated with synovitis: a possible role of cyclooxygenase-2 expression by osteoblasts in the nidus. (3/89)

To clarify the condition of development of synovitis associated with intraarticular osteoid osteoma (OO), expressions of cyclooxygenase-2 (COX-2) protein and its messenger ribonucleic acid were investigated both in the nidus and the synovial tissue using immunohistochemical and reverse transcription-polymerase chain reaction analyses. Diffuse and strong COX-2 immunoreactivity was found in osteoblast-like tumor cells in the nidus of all six cases of OO (three of six cases were intraarticular OO associated with synovitis) and one case of osteoblastoma associated with synovitis. Expression of COX-2 messenger ribonucleic acid was demonstrated in one case of OO associated with synovitis, and was higher in the nidus than that in the inflamed synovial tissue. However, there were no significant difference between the nidus and synovium in the expression of cytosolic phospholipase A2, one of the enzymes involved in arachidonic acid metabolism, and inflammatory cytokines such as interleukin-1beta and tumor necrosis factor alpha. Finally, as there was only one case in which the examinations of gene expression were performed, no definitive overall conclusions could be reached; rather it is suggested that COX-2 expressed primarily by osteoblasts in the nidus of intraarticular OO may play a role in activating the pathway of arachidonic acid metabolism, resulting in synovitis of the involved joint.  (+info)

Osteoid osteoma of the cervical spine depicted as dumbbell tumor by MRI. (4/89)

We report a case of 14-year-old male patient with osteoid osteoma of the cervical spine. Magnetic resonance imaging (MRI) revealed a large dumbbell-shaped paravertebral tumor in the region of the exiting left C6 nerve. A computed tomographic (CT) scan after myelography showed a much smaller bony defect in the medial aspect of the left C6 pedicle with central calcification and extensive bone sclerosis around the defect, typical of osteoid osteoma. The diagnosis was confirmed postoperatively. The resected specimen exhibited extensive vascularization of the osteoid tissue. The case is presented because MRI did not allow a specific diagnosis of osteoid osteoma, and suggested the tumor was larger than in reality it was, by also depicting the reactive inflammation around the tumor as if it were part of the tumor.  (+info)

Interstitial laser photocoagulation for the treatment of osteoid osteoma. (5/89)

We report the results of a prospective study of 23 patients in which interstitial laser photocoagulation (ILP) was used to treat an osteoid osteoma. ILP is a technique in which tumour tissue is destroyed by direct heating using low-power laser light energy delivered by thin (400 microm) optical fibres which are introduced percutaneously into the tumour under image guidance. Pain was evaluated before operation and at the latest follow-up using a visual analogue scale with 0 denoting no pain and 10 the worst pain imaginable. The mean follow-up was for 15 months. The results showed that the mean pain score decreased from 7.5 before operation to 0.95 at the latest follow-up. Fourteen patients had no pain and eight had minor discomfort, not requiring analgesia. One patient required a second procedure because placement of the fibre had not been accurate enough and one developed recurrent symptoms eight months after treatment. All patients were satisfied with the operation because of the rapid resolution of pain, the minimally invasive nature of the procedure, and the fact that there was no postoperative restriction of activity.  (+info)

Childhood organic neurological disease presenting as psychiatric disorder. (6/89)

Over a period of one year 12 children with complaints which had been diagnosed as due to a psychiatric disorder presented to a paediatric neurological unit where neurological disease was diagnosed. The group was characterized by behavioural symptoms such as deteriorating school performance, visual loss, and postural disturbance, which are unusual in children attending child psychiatric departments. It is suggested that where there is diagnostic uncertainty the presence of these physical symptoms calls for periodic neurological reassessment, and attention is drawn to the rare but serious disorders which may thus be diagnosed. Making an organic diagnosis, however, should not preclude psychosocial management of emotional reactions in these families.  (+info)

Percutaneous radiofrequency ablation in osteoid osteoma. (7/89)

We treated 58 patients with osteoid osteoma by CT-guided radiofrequency ablation (RF). In 16 it followed one or two unsuccessful open procedures. It was performed under general anaesthesia in 48, and spinal anaesthesia in ten. The nidus was first located by thin-cut CT (2 to 3 mm) sections. In hard bony areas a 2 mm coaxial drill system was applied. In softer areas an 11-gauge Jamshidi needle was inserted to allow the passage of a 1 mm RF probe into the centre of the nidus. RF ablation was administered at 90 degrees C for a period of four to five minutes. Three patients had recurrence of pain three, five and seven months after treatment, respectively, and a second percutaneous procedure was successful. Thus, the primary rate of success for all patients was 95% and the secondary rate was 100%. One minor complication was encountered. CT-guided RF ablation is a safe, simple and effective method of treatment for osteoid osteoma.  (+info)

Osteoid osteoma: the results of surgical treatment. (8/89)

Between 1987 and 1999 we diagnosed and treated 110 patients with osteoid osteoma. Sixty patients were younger than 20 years. One hundred and four patients had characteristic pain at night. The mean duration of symptoms before surgery was 16 months. One hundred and four symptomatic patients were treated operatively with either wide resection or curettage. Ninety-one patients had immediate and complete relief of pain. The average follow-up was 2.5 years.  (+info)

Osteoma is a benign (noncancerous) tumor that is made up of mature bone tissue. It usually grows slowly over a period of years and is most commonly found in the skull or jaw, although it can occur in other bones of the body as well. Osteomas are typically small, but they can grow to be several centimeters in size. They may cause symptoms if they press on nearby tissues or structures, such as nerves or blood vessels. In some cases, osteomas may not cause any symptoms and may only be discovered during routine imaging studies. Treatment for osteoma is typically not necessary unless it is causing problems or growing rapidly. If treatment is needed, it may involve surgical removal of the tumor.

Osteoma is a benign bone tumor that usually develops on the surface of the bone and is composed of mature lamellar bone. On the other hand, osteoid osteoma is a type of benign bone-forming tumor that is made up of osteoid tissue (immature bone) and is surrounded by a highly vascularized fibrous connective tissue.

Osteoid osteomas are typically smaller than osteomas and can cause significant pain, especially at night, which can be relieved with the use of nonsteroidal anti-inflammatory drugs (NSAIDs). They usually affect young people, particularly males under 30 years old, and commonly involve the long bones of the lower extremities.

While osteomas are generally asymptomatic and do not require treatment unless they cause functional or aesthetic problems, osteoid osteomas may require surgical intervention to alleviate pain and prevent potential complications such as bone deformity or fracture.

Osteoblastoma is a rare, benign (non-cancerous) bone tumor that originates from osteoblasts, which are cells responsible for bone formation. It typically affects children and young adults, with around two-thirds of cases occurring in individuals under 30 years old.

Osteoblastomas usually develop in the long bones of the body, such as the femur (thigh bone) or tibia (shin bone), but they can also occur in the vertebrae of the spine. The tumor tends to grow slowly and may cause symptoms like pain, swelling, or tenderness in the affected area. In some cases, it can lead to pathological fractures (fractures caused by weakened bone structure).

While osteoblastomas are generally not life-threatening, they can be locally aggressive and cause significant morbidity if left untreated. Treatment typically involves surgical removal of the tumor, followed by curettage (scraping) and bone grafting to fill the void created by the tumor excision. In some cases, adjuvant therapies like cryosurgery or radiation therapy may be used to ensure complete tumor eradication.

Bone neoplasms are abnormal growths or tumors that develop in the bone. They can be benign (non-cancerous) or malignant (cancerous). Benign bone neoplasms do not spread to other parts of the body and are rarely a threat to life, although they may cause problems if they grow large enough to press on surrounding tissues or cause fractures. Malignant bone neoplasms, on the other hand, can invade and destroy nearby tissue and may spread (metastasize) to other parts of the body.

There are many different types of bone neoplasms, including:

1. Osteochondroma - a benign tumor that develops from cartilage and bone
2. Enchondroma - a benign tumor that forms in the cartilage that lines the inside of the bones
3. Chondrosarcoma - a malignant tumor that develops from cartilage
4. Osteosarcoma - a malignant tumor that develops from bone cells
5. Ewing sarcoma - a malignant tumor that develops in the bones or soft tissues around the bones
6. Giant cell tumor of bone - a benign or occasionally malignant tumor that develops from bone tissue
7. Fibrosarcoma - a malignant tumor that develops from fibrous tissue in the bone

The symptoms of bone neoplasms vary depending on the type, size, and location of the tumor. They may include pain, swelling, stiffness, fractures, or limited mobility. Treatment options depend on the type and stage of the tumor but may include surgery, radiation therapy, chemotherapy, or a combination of these treatments.

Gardner Syndrome is a rare inherited condition associated with a mutation in the APC gene, which also causes Familial Adenomatous Polyposis (FAP). This syndrome is characterized by the development of multiple benign tumors called adenomas in the colon and rectum. Additionally, individuals with Gardner Syndrome often develop various types of non-cancerous growths outside the gastrointestinal tract, such as osteomas (benign bone tumors), dental abnormalities, and epidermoid cysts on the skin.

Individuals with this syndrome have an increased risk of developing colorectal cancer at a young age, typically before 40 years old, if not monitored and treated appropriately. Other cancers that may develop in association with Gardner Syndrome include duodenal cancer, thyroid cancer, brain tumors (particularly cerebellar medulloblastomas), and adrenal gland tumors.

Regular surveillance through colonoscopies and other diagnostic tests is crucial for early detection and management of potential malignancies in individuals with Gardner Syndrome.

Spinal neoplasms refer to abnormal growths or tumors found within the spinal column, which can be benign (non-cancerous) or malignant (cancerous). These tumors can originate in the spine itself, called primary spinal neoplasms, or they can spread to the spine from other parts of the body, known as secondary or metastatic spinal neoplasms. Spinal neoplasms can cause various symptoms, such as back pain, neurological deficits, and even paralysis, depending on their location and size. Early diagnosis and treatment are crucial to prevent or minimize long-term complications and improve the patient's prognosis.

Skull neoplasms refer to abnormal growths or tumors that develop within the skull. These growths can be benign (non-cancerous) or malignant (cancerous). They can originate from various types of cells, such as bone cells, nerve cells, or soft tissues. Skull neoplasms can cause various symptoms depending on their size and location, including headaches, seizures, vision problems, hearing loss, and neurological deficits. Treatment options include surgery, radiation therapy, and chemotherapy. It is important to note that a neoplasm in the skull can also refer to metastatic cancer, which has spread from another part of the body to the skull.

Femoral neoplasms refer to abnormal growths or tumors that develop in the femur, which is the long thigh bone in the human body. These neoplasms can be benign (non-cancerous) or malignant (cancerous). Benign femoral neoplasms are slow-growing and rarely spread to other parts of the body, while malignant neoplasms are aggressive and can invade nearby tissues and organs, as well as metastasize (spread) to distant sites.

There are various types of femoral neoplasms, including osteochondromas, enchondromas, chondrosarcomas, osteosarcomas, and Ewing sarcomas, among others. The specific type of neoplasm is determined by the cell type from which it arises and its behavior.

Symptoms of femoral neoplasms may include pain, swelling, stiffness, or weakness in the thigh, as well as a palpable mass or limited mobility. Diagnosis typically involves imaging studies such as X-rays, CT scans, or MRI, as well as biopsy to determine the type and grade of the tumor. Treatment options may include surgery, radiation therapy, chemotherapy, or a combination of these approaches, depending on the type, size, location, and stage of the neoplasm.

Mandibular neoplasms refer to abnormal growths or tumors that develop in the mandible, which is the lower jawbone. These growths can be benign (non-cancerous) or malignant (cancerous). Benign neoplasms are typically slow-growing and rarely spread to other parts of the body, while malignant neoplasms can invade surrounding tissues and may metastasize (spread) to distant sites.

Mandibular neoplasms can have various causes, including genetic mutations, exposure to certain chemicals or radiation, and infection with certain viruses. The symptoms of mandibular neoplasms may include swelling or pain in the jaw, difficulty chewing or speaking, numbness in the lower lip or chin, loose teeth, and/or a lump or mass in the mouth or neck.

The diagnosis of mandibular neoplasms typically involves a thorough clinical examination, imaging studies such as X-rays, CT scans, or MRI scans, and sometimes a biopsy to confirm the type and extent of the tumor. Treatment options depend on the type, stage, and location of the neoplasm, and may include surgery, radiation therapy, chemotherapy, or a combination of these approaches. Regular follow-up care is essential to monitor for recurrence or metastasis.

Choroid neoplasms are abnormal growths that develop in the choroid, a layer of blood vessels that lies between the retina and the sclera (the white of the eye). These growths can be benign or malignant (cancerous). Benign choroid neoplasms include choroidal hemangiomas and choroidal osteomas. Malignant choroid neoplasms are typically choroidal melanomas, which are the most common primary eye tumors in adults. Other types of malignant choroid neoplasms include metastatic tumors that have spread to the eye from other parts of the body. Symptoms of choroid neoplasms can vary depending on the size and location of the growth, but may include blurred vision, floaters, or a dark spot in the visual field. Treatment options depend on the type, size, and location of the tumor, as well as the patient's overall health and personal preferences.

Pneumocephalus is a medical condition characterized by the presence of air or gas within the intracranial cavity, specifically within the cranial vault (the space enclosed by the skull and containing the brain). This can occur due to various reasons such as trauma, neurosurgical procedures, tumors, or infection. The accumulation of air in the cranium can lead to symptoms like headache, altered mental status, nausea, vomiting, and neurological deficits. It is essential to diagnose and treat pneumocephalus promptly to prevent further complications, such as meningitis or brain abscess. Treatment options may include surgery, bed rest with head elevation, or administration of oxygen to facilitate the reabsorption of air.

The ethmoid bone is a paired, thin, and lightweight bone that forms part of the skull's anterior cranial fossa and contributes to the formation of the orbit and nasal cavity. It is located between the frontal bone above and the maxilla and palatine bones below. The ethmoid bone has several important features:

1. Cribriform plate: This is the horizontal, sieve-like portion that forms part of the anterior cranial fossa and serves as the roof of the nasal cavity. It contains small openings (foramina) through which olfactory nerves pass.
2. Perpendicular plate: The perpendicular plate is a vertical structure that projects downward from the cribriform plate, forming part of the nasal septum and separating the left and right nasal cavities.
3. Superior and middle nasal conchae: These are curved bony projections within the lateral walls of the nasal cavity that help to warm, humidify, and filter incoming air.
4. Lacrimal bone: The ethmoid bone articulates with the lacrimal bone, forming part of the medial wall of the orbit.
5. Frontal process: This is a thin, vertical plate that articulates with the frontal bone above the orbit.
6. Sphenoidal process: The sphenoidal process connects the ethmoid bone to the sphenoid bone posteriorly.

The ethmoid bone plays a crucial role in protecting the brain and providing structural support for the eyes, as well as facilitating respiration by warming, humidifying, and filtering incoming air.

Paranasal sinus neoplasms refer to abnormal growths or tumors that develop within the paranasal sinuses, which are air-filled cavities located inside the skull near the nasal cavity. These tumors can be benign (noncancerous) or malignant (cancerous), and they can arise from various types of tissue within the sinuses, such as the lining of the sinuses (mucosa), bone, or other soft tissues.

Paranasal sinus neoplasms can cause a variety of symptoms, including nasal congestion, nosebleeds, facial pain or numbness, and visual disturbances. The diagnosis of these tumors typically involves a combination of imaging studies (such as CT or MRI scans) and biopsy to determine the type and extent of the tumor. Treatment options may include surgery, radiation therapy, chemotherapy, or a combination of these approaches, depending on the specific type and stage of the neoplasm.

A frontal sinus is a paired, air-filled paranasal sinus located in the frontal bone of the skull, above the eyes and behind the forehead. It is one of the four pairs of sinuses found in the human head. The frontal sinuses are lined with mucous membrane and are interconnected with the nasal cavity through small openings called ostia. They help to warm, humidify, and filter the air we breathe, and contribute to the resonance of our voice. Variations in size, shape, and asymmetry of frontal sinuses are common among individuals.

Interventional radiology (IR) is a subspecialty of radiology that uses minimally invasive image-guided procedures to diagnose and treat various medical conditions. The main goal of interventional radiology is to offer patients less invasive options for treatment, which can result in smaller incisions, reduced recovery time, and fewer complications compared to traditional open surgeries.

Interventional radiologists use a variety of imaging techniques, such as X-rays, fluoroscopy, computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound, to guide catheters, wires, needles, and other small instruments through the body to target specific areas. These targeted interventions can be used for both diagnostic and therapeutic purposes, including:

1. Biopsies: Obtaining tissue samples from organs or tumors to determine a diagnosis.
2. Drainage procedures: Removing fluid from abscesses, cysts, or blocked areas to alleviate symptoms and promote healing.
3. Stent placements: Opening narrowed or obstructed blood vessels, bile ducts, or airways using small mesh tubes called stents.
4. Embolization: Blocking abnormal blood vessels or reducing blood flow to tumors, aneurysms, or other problematic areas.
5. Tumor ablation: Destroying tumors using heat (radiofrequency ablation, microwave ablation), cold (cryoablation), or other energy sources.
6. Pain management: Treating chronic pain by targeting specific nerves and blocking their transmission of pain signals.
7. Vascular access: Creating secure pathways to blood vessels for dialysis, chemotherapy, or other long-term treatments.
8. Aneurysm repair: Reinforcing weakened or bulging blood vessel walls using coils, stents, or flow diverters.
9. Vertebroplasty and kyphoplasty: Stabilizing fractured vertebrae in the spine to alleviate pain and improve mobility.
10. Uterine fibroid embolization: Reducing the size and symptoms of uterine fibroids by blocking their blood supply.

These are just a few examples of interventional radiology procedures. The field is constantly evolving, with new techniques and technologies being developed to improve patient care and outcomes. Interventional radiologists work closely with other medical specialists to provide minimally invasive treatment options for a wide range of conditions.

The trapezoid bone is a carpal bone located in the wrist, more specifically in the proximal row of carpals. It is situated between the trapezium bone (also known as the greater multangular bone) and the capitate bone, and articulates proximally with the scaphoid bone. The trapezoid bone has a quadrilateral shape, with its lateral surface being convex and articulating with the trapezium, while its medial surface is concave and articulates with the capitate. Its distal surface articulates with the second metacarpal bone. This bone plays an essential role in wrist movements and stability.

X-ray computed tomography (CT or CAT scan) is a medical imaging method that uses computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of the body. These cross-sectional images can then be used to display detailed internal views of organs, bones, and soft tissues in the body.

The term "computed tomography" is used instead of "CT scan" or "CAT scan" because the machines take a series of X-ray measurements from different angles around the body and then use a computer to process these data to create detailed images of internal structures within the body.

CT scanning is a noninvasive, painless medical test that helps physicians diagnose and treat medical conditions. CT imaging provides detailed information about many types of tissue including lung, bone, soft tissue and blood vessels. CT examinations can be performed on every part of the body for a variety of reasons including diagnosis, surgical planning, and monitoring of therapeutic responses.

In computed tomography (CT), an X-ray source and detector rotate around the patient, measuring the X-ray attenuation at many different angles. A computer uses this data to construct a cross-sectional image by the process of reconstruction. This technique is called "tomography". The term "computed" refers to the use of a computer to reconstruct the images.

CT has become an important tool in medical imaging and diagnosis, allowing radiologists and other physicians to view detailed internal images of the body. It can help identify many different medical conditions including cancer, heart disease, lung nodules, liver tumors, and internal injuries from trauma. CT is also commonly used for guiding biopsies and other minimally invasive procedures.

In summary, X-ray computed tomography (CT or CAT scan) is a medical imaging technique that uses computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional images of the body. It provides detailed internal views of organs, bones, and soft tissues in the body, allowing physicians to diagnose and treat medical conditions.

An encyclopedia is a comprehensive reference work containing articles on various topics, usually arranged in alphabetical order. In the context of medicine, a medical encyclopedia is a collection of articles that provide information about a wide range of medical topics, including diseases and conditions, treatments, tests, procedures, and anatomy and physiology. Medical encyclopedias may be published in print or electronic formats and are often used as a starting point for researching medical topics. They can provide reliable and accurate information on medical subjects, making them useful resources for healthcare professionals, students, and patients alike. Some well-known examples of medical encyclopedias include the Merck Manual and the Stedman's Medical Dictionary.

Catheter ablation is a medical procedure in which specific areas of heart tissue that are causing arrhythmias (irregular heartbeats) are destroyed or ablated using heat energy (radiofrequency ablation), cold energy (cryoablation), or other methods. The procedure involves threading one or more catheters through the blood vessels to the heart, where the tip of the catheter can be used to selectively destroy the problematic tissue. Catheter ablation is often used to treat atrial fibrillation, atrial flutter, and other types of arrhythmias that originate in the heart's upper chambers (atria). It may also be used to treat certain types of arrhythmias that originate in the heart's lower chambers (ventricles), such as ventricular tachycardia.

The goal of catheter ablation is to eliminate or reduce the frequency and severity of arrhythmias, thereby improving symptoms and quality of life. In some cases, it may also help to reduce the risk of stroke and other complications associated with arrhythmias. Catheter ablation is typically performed by a specialist in heart rhythm disorders (electrophysiologist) in a hospital or outpatient setting under local anesthesia and sedation. The procedure can take several hours to complete, depending on the complexity of the arrhythmia being treated.

It's important to note that while catheter ablation is generally safe and effective, it does carry some risks, such as bleeding, infection, damage to nearby structures, and the possibility of recurrent arrhythmias. Patients should discuss the potential benefits and risks of the procedure with their healthcare provider before making a decision about treatment.

Podiatry is the branch of medicine that deals with the diagnosis, prevention, and treatment of disorders of the foot, ankle, and lower extremities. Podiatrists are healthcare professionals who specialize in this field, also known as doctors of podiatric medicine (DPM). They receive specialized medical education and training to provide comprehensive care for various conditions such as bunions, hammertoes, heel pain, nerve damage, diabetic foot problems, and sports injuries among others. Treatment options may include medication, physical therapy, orthotics, or surgery.

Organic anion transport protein 1 (OATP1) is not a specific medical term, but it refers to a type of membrane transporter protein that is involved in the cellular uptake of organic anions, such as drugs, toxins, and endogenous compounds. It is primarily expressed in the liver and plays a crucial role in the hepatic clearance of these substances.

The official medical definition of OATP1 may vary depending on the specific context or source, but it generally refers to a member of the solute carrier organic anion transporter family (SLCO), specifically SLCO1A2, which is also known as OATP1B1. This protein is responsible for the transport of various drugs and their metabolites, including statins, antibiotics, and antiviral agents, into hepatocytes for further metabolism and elimination.

It's worth noting that there are several other members of the OATP family with different tissue distributions and substrate specificities, such as OATP1B3 (SLCO1B3) and OATP2B1 (SLCO2B1). Therefore, it is essential to specify which particular protein is being referred to when using the term "OATP1."

The epiphyses are the rounded ends of long bones in the body, which articulate with other bones to form joints. They are separated from the main shaft of the bone (diaphysis) by a growth plate called the physis or epiphyseal plate. The epiphyses are made up of spongy bone and covered with articular cartilage, which allows for smooth movement between bones. During growth, the epiphyseal plates produce new bone cells that cause the bone to lengthen until they eventually fuse during adulthood, at which point growth stops.

12.{{cite journal}}: CS1 maint: date and year (link) "Osteoid Osteoma - OrthoInfo - AAOS". "Osteoid Osteoma". Boston Children's ... Osteoid Osteoma Imaging at eMedicine Lateur, L.; Baert, A. L. (1977). "Localisation and diagnosis of osteoid osteoma of the ... On histological examination, osteoid osteoma consists of a small (< 1.5-2 cm), yellowish-to-red nidus of osteoid and woven bone ... An osteoid osteoma is a benign (non-cancerous) bone tumor that arises from osteoblasts and some components of osteoclasts. It ...
Examples of benign bone tumors include osteoma, osteoid osteoma, osteochondroma, osteoblastoma, enchondroma, giant cell tumor ... Rosenthal DI, Hornicek FJ, Torriani M, Gebhardt MC, Mankin HJ (October 2003). "Osteoid osteoma: percutaneous treatment with ... "Percutaneous radiofrequency coagulation of osteoid osteoma compared with operative treatment". The Journal of Bone and Joint ... Since the procedure was first introduced for the treatment of osteoid osteomas in the early 1990s, it has been shown in ...
"Osteoid Osteoma: Percutaneous Treatment with Radiofrequency Energy". Radiology. 229 (1): 171-75. doi:10.1148/radiol.2291021053 ... "Percutaneous Radiofrequency Coagulation of Osteoid Osteoma Compared with Operative Treatment*". J Bone Joint Surg Am. 80 (6): ... Since the procedure was first introduced for the treatment of osteoid osteomas in the 1990s, it has been shown in numerous ... Rosenthal, D I; Alexander, A; Rosenberg, A E; Springfield, D (1992-04-01). "Ablation of osteoid osteomas with a percutaneously ...
Although similar to osteoid osteoma, it is larger (between 2 and 6 cm). Patients with osteoblastoma usually present with pain ... In contrast to the pain associated with osteoid osteoma, the pain of osteoblastoma usually is less intense, usually not worse ... It has clinical and histologic manifestations similar to those of osteoid osteoma; therefore, some consider the two tumors to ... Spinal lesions can cause painful scoliosis, although this is less common with osteoblastoma than with osteoid osteoma. In ...
... is also a major method used for removing osteoid osteoma and osteoblastoma. Curettage with subsequent culture is more ...
Often mimics the symptoms of osteoid osteoma, which is typically less than 1 cm in diameter.[citation needed] Usually occurs at ...
They can be distinguished from benign bone tumors like osteoid osteoma by the lack of a sclerotic perimeter. No disturbance of ...
The current standard treatment of osteoid osteoma is percutaneous radiofrequency ablation and this is usually performed under ... CT is also used for accurate localization of the nidus in osteoid osteomas and this must be differentiated from Brodie's ... Typical matrix calcifications include the following: (a) osteoid mineralization, like a dense cloud, (b) chondroid ...
... a sequestrum may turn out to be an osteoid osteoma, a rare tumor of the bone. Zachary, James F. (2017). Pathologic basis of ...
The right lamina of the sixth thoracic vertebra of MH1 presents a penetrating bone tumour, probably a benign osteoid osteoma. ...
These treatments may be palliatively for bone metastases pain or for some cases such as osteoid osteoma can curatively treat ...
There are several types of tumor that can affect bone; examples of benign bone tumors include osteoma, osteoid osteoma, ... The osteoid seam is a narrow region of a newly formed organic matrix, not yet mineralized, located on the surface of a bone. ... Osteoid is primarily composed of Type I collagen. Osteoblasts also manufacture hormones, such as prostaglandins, to act on the ... They are located on the surface of osteon seams and make a protein mixture known as osteoid, which mineralizes to become bone. ...
These treatments may be palliatively for bone metastases pain or for some cases such as osteoid osteoma can curatively treat ...
... and osteoid osteoma. One of the clinical signs of rickets that doctors look for is cupping and fraying at the metaphyses when ...
On the other hand, increased collagen production due to RAP in rheumatoid arthritis or osteoid osteoma may lead to diffuse ...
... such as osteoid osteoma). An anteroposterior and frog lateral (Lauenstein) view of the pelvis and both hips is advisable. An ...
These include, aneurysmal bone cyst, chondroblastoma, simple bone cyst, osteoid osteoma, osteoblastoma, osteosarcoma, giant- ...
Osteoid osteoma Fibro-osteoma Chondro-osteoma Osteoma of the frontal sinus seen on x-ray Osteoma of the frontal sinus on CT ... radio/498 at eMedicine - Osteoid osteoma derm/301 at eMedicine - Osteoma cutis Humapth #4724 (Pathology images) (Articles with ... Often, craniofacial osteoma presents itself through ocular signs and symptoms (such as proptosis). Osteoma cutis (also known as ... "heteroplastic osteoma". Osteoma represents the most common benign neoplasm of the nose and paranasal sinuses. The cause of ...
... osteoma MeSH C04.557.450.565.575.625.625 - osteoma, osteoid MeSH C04.557.450.565.575.650 - osteosarcoma MeSH C04.557.450.565. ...
NOS Giant osteoid osteoma M9200/1 Aggressive osteoblastoma M9210/0 Osteochondroma Cartilagionus exostosis Cartilaginous ... osteo sarcoma M9187/3 Intraosseous well differentiated osteosarcoma Intraosseous low grade osteosarcoma M9191/0 Osteoid osteoma ... malignant M9260/3 Ewing's sarcoma/tumor M9261/3 Adamantinoma of long bones M9262/0 Ossifying fibroma Fibro-osteoma Osteofibroma ... Hygroma M9174/0 Lymphangiomyoma M9174/1 Lymphangiomyomatosis Lymphangioleiomyomatosis M9175/0 Hemolymphangioma M9180/0 Osteoma ...
... although this was ruled out by the presence of the spur-like process Osteoid osteoma - but this would not explain the spur or ...
Other possible causes of pain in the limbs include injuries, infections, benign tumors such as osteoid osteoma, malignant ...
... due to trauma or infection tumors like osteoid osteoma, melorheostosis, and lipofibromatous hamartoma Arteriovenous ...
... and other conditions such as transient edema and osteoid osteoma need to be excluded. Additional imaging by CT is warranted in ... isolated bone marrow edema may represent other pathologies such as osteoid osteoma and sclerosing osteomyelitis. Although 1.5 T ...
... may refer to: Nidus (nest), for insects or small animals The characteristic lesion in osteoid osteoma The centre of a ...
Osteoid osteoma - Osteoid - Osteolysis - Osteoma - Osteomalacia - Osteomyelitis - Osteon - Osteopetrosis - Osteophyte - ...
J Feline Med Surg 2007, 9, 254-257 Hanley CS, Gieger T, Frank P. What is your diagnosis? Multilobular osteoma (MLO). J Am Vet ... Histologically, it is characterised by the dominant presence of multiple osteoid- or cartilage- containing lobules that are ...
12.{{cite journal}}: CS1 maint: date and year (link) "Osteoid Osteoma - OrthoInfo - AAOS". "Osteoid Osteoma". Boston Childrens ... Osteoid Osteoma Imaging at eMedicine Lateur, L.; Baert, A. L. (1977). "Localisation and diagnosis of osteoid osteoma of the ... On histological examination, osteoid osteoma consists of a small (< 1.5-2 cm), yellowish-to-red nidus of osteoid and woven bone ... An osteoid osteoma is a benign (non-cancerous) bone tumor that arises from osteoblasts and some components of osteoclasts. It ...
Background Osteoid osteoma is a benign osteoblastic tumor that Bergstrand first described in 1930. Jaffe described it in 1935 ... Osteoid osteoma can occur anywhere and can involve either a single bone or several bones. Osteoid osteoma is reported to occur ... encoded search term (Osteoid Osteoma) and Osteoid Osteoma What to Read Next on Medscape ... Osteoid osteoma of the spine. A review of the literature and report of six new cases. J Bone Joint Surg Am. 1967 Jan. 49 (1): ...
Objective: The objective of current study was to determine and explain the unusual cases of Osteoid osteoma found in atypical ... The unusual location of osteoid osteoma is rare and may be misleading and misinterpreting the diagnosis. ... Osteoid osteoma is a painful bone tumor that usually affects long bones. ... The cause of osteoid osteoma has stayed still unknown [1] . Since the first report of osteoid osteoma by Jaffe in 1935, many ...
Osteoid osteoma is a benign osseous tumor. They usually present in adolescents but can be seen in older patients and younger ... Image from a DynaCT performed in the fluoroscopy suite showing the tip of a radiofrequency probe within the osteoid osteoma. ... "osteoid-osteoma-13","modality":"X-ray","series":[{"id":5145977,"content_type":"image/x-png","frames":[{"id":5145977,"width": ... "osteoid-osteoma-13","modality":"CT","series":[{"id":5146266,"content_type":"image/jpeg","frames":[{"id":5145993,"width":512," ...
Here, a case report details a juvenile patient with an osteoid osteoma tumor of the distal phalanx in the right second digit ... The literature describes the limited encounters with osteoid osteomas of the pedal digital phalanx, especially in the pediatric ... Osteoid osteomas account for approximately 3% to 10% of primary bone tumors and are found most commonly in the cortical, ... Jordan RW , Koç T & Chapman AWP et al.: Osteoid osteoma of the foot and ankle: a systematic review. Foot Ankle Surg 21 : 228, ...
An osteoid osteoma is a common non-cancerous type of bone tumour. The most common symptom is pain, which may be severe and is ... What is an osteoid osteoma?. An osteoid osteoma is a common type of non-cancerous bone tumour. These tumours are usually small ... What does an osteoid osteoma look like under the microscope?. Under the microscope, an osteoid osteoma is made up of ... How do pathologists make the diagnosis of osteoid osteoma?. The diagnosis of osteoid osteoma can be made after a small tissue ...
MRgHIFU of Osteoid Osteoma Contact Us. An osteoid osteoma is a benign bone tumor that almost always presents in children and ... Typically, an osteoid osteoma causes localized pain that is worse at night, is unrelated to trauma, and is relieved by ... An osteoid osteoma is typically less than one centimeter in diameter, and is surrounded by reactive asymmetric thickening of ... With MRgFUS treatment, MR imaging is used to identify the nidus of the osteoid osteoma, followed by a single low energy ...
The tumor was taken to histopathology with a diagnosis of osteoid osteoma of the mandible. ...
Osteoma osteoid I had a sharp, continuous pain all day. After many doctors and many treatments, at the Clinic I was diagnosed ... with an osteoid osteoma. They performed a percutaneous thermoablation and since then, the pain has disappeared. ...
Greenspan A. Benign bone-forming lesions: osteoma, osteoid osteoma, and osteoblastoma -clinical, imaging, pathologic, and ... An osteoid osteoma (OO) is a small, benign, osseous neoplasm characterized by a nidus with a maximum growth potential of 1.5 cm ... Osteoid osteoma. In: Unni KK, Inwards CY, eds. Dahlins Bone Tumors: General Aspects and Data on 10,165 Cases. 6th ed. ... L. Osteoid osteoma. Direct visual identification and intralesional excision of the nidus with minimal removal of bone. J Bone ...
We present two patients with osteoid osteomas of the lumbar spine to highlight the delay in diagnosis and the utility of ... The diagnosis of osteoid osteoma of the spine requires a high index of clinical suspicion. Diagnostic evaluations should ... Ahmad, T., Fawwad, M., Hussain,, A., Hameed, A., Manzar,, N., Lakdawala, R. (2014). Conservative surgery for osteoid osteoma of ... which were both consistent with the diagnosis of an osteoid osteoma. After accurate CT-based preoperative planning for tumor ...
Arthroscopic Excision of Intra-Articular Hip Osteoid Osteoma: A Report of 2 Cases. Alexandre H. Nehme , Alaa G. Bou Ghannam ...
Osteoid Osteoma of Elbow: Two Case Reports and Review of Literature ... Although osteoid osteoma is a relatively common lesion, it rarely occurs at elbow. We report two cases of osteoid osteoma of ...
Osteoma, Osteoid / diagnostic imaging* * Osteoma, Osteoid / drug therapy * Osteoma, Osteoid / pathology * Osteomyelitis / ...
Computer modelling of RF ablation in cortical osteoid osteoma: Assessment of the insulating effect of the reactive zone. R.M. ... Radiofrequency ablation of osteoma osteoide: A finite element study. *How coagulation zone size is underestimated in computer ...
Subchondral Osteoid Osteoma of a Metatarsal Bone: An… December 22, 2020 *Computed tomography guided radiofrequency ablation… ... We report a rare case of concurrent calcaneonavicular osseous coalition and osteoid osteoma of the navicular. While each ... The Importance of Avoiding Satisfaction of Search Bias in a Case of Concurrent Calcaneonavicular Coalition and Osteoid Osteoma ... Sagittal (a) and axial (b) computed tomography showing an osteoid osteoma (arrow) of the navicular with calcaneonavicular ...
Results: Pathological diagnosis confirmed osteoid osteoma in 19 cases. The other 16 cases were not pathologicallydiagnosed ... of osteoid osteomas.. Methods: 35 patients (20 males and 15 females) with osteoid osteomas underwent treatment with ... Conclusion: 3D Iso-C C-arm navigation-guided RFA is a safe and effective option for the treatment of osteoid osteomas and may ... Radiofrequency ablation under 3D intraoperative Iso-C C- arm navigation for the treatment of osteoid osteomas ...
We report a case of synchronous symmetrical osteoid osteoma of tibia which was atypical in its appearance on imaging. Our ...
Noncancerous (benign) tumors or cysts of the femur or tibia (osteoid osteoma) ...
Osteoid Osteoma after a Stress Fracture of the Tibia: A Case Report. M Soon, C K Low, J Chew ... Enlargement of the Right Maxilla - Report of an Unusual Peripheral Osteoma. Raymond CW Wong, Raymond HL Peck ...
Freschi S, Dodson N.* Osteoid Osteoma. Journal of the American Podiatric Medical Association. September/October 2007. ...
Ablation of benign bone tumors such as osteoid osteoma.. RISKS:. *Remember to always talk to your doctor about the benefits and ...
Minimally invasive treatments, including needle ablation for osteoid osteoma, is used whenever possible. ...
Osteoid Osteoma Invading the Posterior Labyrinth of the Petrous Bone E. Dugert, S. Lagleyre, A. Brouchet, O. Deguine, C. ...
Nine children were successfully treated for osteoid osteoma, a benign bone tumor, by doctors from Childrens National Health ... "Our objective is to provide a noninvasive treatment option for children with osteoid osteoma and were very pleased with the ... Nine children were successfully treated for osteoid osteoma, a benign bone tumor, by doctors from Childrens National Health ... for treating painful osteoid osteoma in pediatric patients. The results of the study showed that the new method is a feasible ...
CT-Guided Excision of Osteoid Osteoma. A. Peyser, S. Porat, T. Sasson, J. Apelbaum, J. Bar-Ziv, E. Sucher. Orthopedic Surgery ... CT-guided excision of osteoid osteoma is a new surgical technique that enables accurate resection of the nidus during 1-day ...
Bone: metastasis, osteoid osteoma, benign epiphyseal lesions. *Abdomen: liver cancer, pancreatic cancer, prostate cancer, renal ... osteoid osteoma, obsessive compulsive disorder, and lung cancer.". The scientific program reflected the rapid expansion and ...
Arthroscopic excision of osteoid osteoma of coracoid process. Nilesh VISHWAKARMA *, Mustafa POONAWALA, Abhishek KULKARNI, Atul ...
  • Osteoid osteomas tend to be less than 1.5 cm in size. (wikipedia.org)
  • Osteoid osteomas may occur at any age, and are most common in patients between the ages of 4 and 25 years old. (wikipedia.org)
  • Characterized by being less than 1.5 cm in diameter, osteoid osteomas most frequently occur in young men (male:female ratio 3:1) and may occur in any bone of the body, most frequently around the knee but often also seen in the vertebrae, in the long bones and less commonly in the mandible or other craniofacial bones. (wikipedia.org)
  • Since the procedure was first introduced for the treatment of osteoid osteomas in the early 1990s, it has been shown in numerous studies to be less invasive and expensive, to result in less bone destruction and to have equivalent safety and efficacy to surgical techniques, with 66 to 96% of patients reporting freedom from symptoms. (wikipedia.org)
  • Osteoid osteomas are usually smaller than 1.5-2 cm and characterized by an osteoid-rich nidus in a highly loose, vascular connective tissue. (medscape.com)
  • The lower extremities are the most common sites of osteoid osteomas. (medscape.com)
  • Approximately 7-20% of osteoid osteomas involve the spine. (medscape.com)
  • Pettine et al noted that 50% of lesions occur in the cervical spine, and as many as 78% of osteoid osteomas in the lumbar spine are associated with scoliosis. (medscape.com)
  • [ 9 ] About 59% of spinal osteoid osteomas affect the lumbar spine. (medscape.com)
  • Osteoid osteomas of the hand and wrist are rare, most commonly involving the phalanges, and often result in atypical clinical and radiologic characteristics. (medscape.com)
  • Osteoid osteomas can affect people of all ages but the incidence among children is reported more frequent than adults. (scirp.org)
  • There is growing evidence that some osteoid osteomas will resolve with conservative management using NSAIDs. (radiopaedia.org)
  • Although osteoid osteomas may regress spontaneously over the course of years, current standard of care in patients whose pain is not controlled by medical therapy is a minimally invasive treatment with radiofrequency ablation. (stanford.edu)
  • The examples below show treatment of osteoid osteomas in the right femur (A) and right tibia (B) with radiofrequency ablation. (stanford.edu)
  • Using the same technique as for the treatment of malignant bone cancers, MRgFUS has also been used as a non-invasive method to treat osteoid osteomas. (stanford.edu)
  • Background Osteoid osteomas consist of a nidus surrounded by reactive sclerotic bone. (fondazione.it)
  • Osteoid osteomas represent 13% of all benign tumors [68] and typically are associated with nocturnal pain [22] . (fondazione.it)
  • We present two patients with osteoid osteomas of the lumbar spine to highlight the delay in diagnosis and the utility of precise radiological localization enabling tumor resection without jeopardizing spinal stability. (aku.edu)
  • Without the availability of percutaneous radiofrequency ablation, such restricted/conservative approaches to osteoid osteomas are viable options in countries with developing economies. (aku.edu)
  • These include tarsal coalition, which can be fibrous, cartilaginous, or osseous, and benign tumors, for example, osteoid osteomas (OOs) which are not especially uncommon in the foot, but are relatively rare in the navicular. (mss-ijmsr.com)
  • Osteoid osteomas are painful bone tumors that make up about 10 percent of all benign bone tumors. (fusfoundation.org)
  • Osteoid osteomas typically cause nighttime pain and painful scoliosis in adolescents. (aofoundation.org)
  • We describe a case involving an osteoid osteoma of the acetabular fossa, treated with arthroscopy-assisted radiofrequency ablation. (fondazione.it)
  • Synovectomy and debridement of the ligamentum teres were performed, followed by radiofrequency ablation of the osteoid osteoma under direct arthroscopic observation of the hip, avoiding resection of the normal bone around the nidus and preserving the integrity of the quadrilateral lamina and cartilage. (fondazione.it)
  • In the new study published in the Journal of Pediatrics , MR-HIFU delivered using Philips Sonalleve V2 device integrated with the company's Achieva 1.5T MRI was compared to radiofrequency ablation (RFA) for treating painful osteoid osteoma in pediatric patients. (medgadget.com)
  • The tumours which can be treated by radiofrequency ablation include osteoid osteoma. (nemlib.cz)
  • Al-Omari MH1, , "Radiofrequency ablation of osteoid osteoma using tissue impedance as a parameter of osteonecrosis. (just.edu.jo)
  • The unusual location of osteoid osteoma is rare and may be misleading and misinterpreting the diagnosis. (scirp.org)
  • How do pathologists make the diagnosis of osteoid osteoma? (mypathologyreport.ca)
  • The diagnosis of osteoid osteoma can be made after a small tissue sample is removed in a procedure called a biopsy or when the entire tumour is removed in a procedure called a resection . (mypathologyreport.ca)
  • For this reason, your pathologist may also look at your X-ray or other imaging results before making the diagnosis of osteoid osteoma. (mypathologyreport.ca)
  • Imaging is key to the diagnosis, as the appearance of an osteoid osteoma combined with the clinical symptoms is often diagnostic. (stanford.edu)
  • The tumor was taken to histopathology with a diagnosis of osteoid osteoma of the mandible. (augmabio.com)
  • The presence of "red-flag" symptoms (e.g. rest and night pain, and transient pain relief with aspirin) led to the performance of an isotope bone scan, and subsequent computed tomography (CT), which were both consistent with the diagnosis of an osteoid osteoma. (aku.edu)
  • The diagnosis of osteoid osteoma of the spine requires a high index of clinical suspicion. (aku.edu)
  • With a hypothetical diagnosis of osteoma, the patient underwent surgery under general anesthesia for the excision of the lesion. (bvsalud.org)
  • After the specimen was sent for analysis, the histopathological report confirmed the diagnosis of a compact osteoma. (bvsalud.org)
  • Plain radiography and computed tomography are usually sufficient for the diagnosis of osteoid osteoma. (bvsalud.org)
  • Objective: The objective of current study was to determine and explain the unusual cases of Osteoid osteoma found in atypical location (the coccyx, iliac bone, toe, vertebral body and scapula) of patients that were referred to our institution. (scirp.org)
  • In this study two sets of data were analyzed: first, 5 unusual cases of osteoid osteoma found in atypical location (the coccyx, iliac bone, toe, vertebral body and scapula) of patients that were referred to our institution. (scirp.org)
  • We report two cases of osteoid osteoma of elbow in trochlea. (ac.ir)
  • An osteoid osteoma is a benign (non-cancerous) bone tumor that arises from osteoblasts and some components of osteoclasts. (wikipedia.org)
  • Radiographs in osteoid osteoma typically show a round lucency, containing a dense sclerotic central nidus (the characteristic lesion in this kind of tumor) surrounded by sclerotic bone. (wikipedia.org)
  • Background: Osteoid osteoma is a painful bone tumor that usually affects long bones. (scirp.org)
  • Osteoid osteoma is a noncancerous bone tumor that usually occurs in the long bones of the body such as the femur (thighbone) and tibia (shinbone). (scirp.org)
  • Osteoid osteoma is a benign osseous tumor. (radiopaedia.org)
  • An osteoid osteoma is a benign bone tumor that almost always presents in children and young adults. (stanford.edu)
  • With MRgFUS treatment, MR imaging is used to identify the nidus of the osteoid osteoma, followed by a single low energy ultrasound treatment that requires 20 seconds to heat the tumor and destroy it. (stanford.edu)
  • The images below show an osteoid osteoma in the right tibia, positioned for MRgFUS treatment (A). MR imaging before and after treatment of an osteoid osteoma in the third metacarpal of the hand shows that after the treatment, the tumor lacks vascularity. (stanford.edu)
  • After accurate CT-based preoperative planning for tumor excision, a customized conservative surgical technique was utilized that included marginal en-bloc surgical resection of the tumors. (aku.edu)
  • Nine children were successfully treated for osteoid osteoma, a benign bone tumor, by doctors from Children's National Health System in Washington, DC. (medgadget.com)
  • Osteoid osteoma is a benign bone tumor that occurs most often in young children and adolescents. (fusfoundation.org)
  • Osteosarcoma is a tumor characterized by the production of osteoid by malignant cells (Spindle cell). (orthofixar.com)
  • Osteoid osteoma is a self-limiting benign bone tumor. (orthofixar.com)
  • Osteoid osteoma, the third most common benign bone tumor, usually occurs in the cortex of long bones. (bvsalud.org)
  • Barei et al reported that in 50-60% of cases, osteoid osteoma occurs in the femur and tibia. (medscape.com)
  • Benign osteoblastoma is virtually indistinguishable from osteoid osteoma. (wikipedia.org)
  • Pain in osteoid osteoma has been typically attributed to the nidus, with its associated hyperostosis and neural elements in the reactive fibrous tissue. (medscape.com)
  • An osteoid osteoma (OO) is a small, benign, osseous neoplasm characterized by a nidus with a maximum growth potential of 1.5 cm, surrounded by reactive sclerotic bone [32] . (fondazione.it)
  • However, in the release, the FDA noted, "Clinical results support the probable benefit of Sonalleve MR-HIFU system for the ablation of painful osteoid osteoma. (fusfoundation.org)
  • Results: We determined 5 patients with atypical location of osteoid osteoma in patients referred to our hospital during years 2014-2015. (scirp.org)
  • Conclusion: Analysis of our study concluded that the physicians should bear in mind, the probability of osteoid osteoma, when they are considering the chronic pain in the atypical areas of patients' body. (scirp.org)
  • Ghavami, M. , Hossein-Pourfeizi, H. and Biglu, M. (2016) Atypical Location of Osteoid Osteoma in Patients Referred to Orthopedic Hospital in Tabriz. (scirp.org)
  • We determined 5 rare cases among patients, who were referred to our clinical center with a persistent dull pain at atypical location of osteoid osteoma. (scirp.org)
  • Open surgical treatment of osteoid osteoma has included wide en-bloc resection and unroofing and excision. (medscape.com)
  • Ablation of benign bone tumors such as osteoid osteoma. (medtronic.com)
  • Typically, an osteoid osteoma causes localized pain that is worse at night, is unrelated to trauma, and is relieved by treatment with aspirin, ibuprofen, or other non-steroidal anti-inflammatory medications. (stanford.edu)
  • An osteoid osteoma is typically less than one centimeter in diameter, and is surrounded by reactive asymmetric thickening of the bone cortex. (stanford.edu)
  • According to its policy, RFA is deemed 'medically necessary' for the palliative treatment of osteoid osteoma and for debulking primary and metastatic lesions that are causing symptoms. (diagnosticimaging.com)
  • We report a rare case of concurrent calcaneonavicular osseous coalition and osteoid osteoma of the navicular. (mss-ijmsr.com)
  • Sagittal T1 (a), proton density fat-suppressed (PDFS) (b), axial PDFS (c) showing osseous calcaneonavicular coalition with osteoid osteoma of navicular (arrow) with marked osseous edema of the calcaneum, navicular, cuboid, and lateral cuneiform. (mss-ijmsr.com)
  • This release includes forward-looking statements regarding Profound and its business which may include, but is not limited to, the expectations regarding the efficacy of Profound's technology in the treatment of prostate cancer, uterine fibroids, palliative pain treatment and osteoid osteoma. (globenewswire.com)
  • The usual appearance included a fibrovascular stroma with numerous osteoblasts, osteoid tissue, well-formed woven bone, and giant cells. (wikipedia.org)
  • Under the microscope, an osteoid osteoma is made up of disorganized, immature new bone called osteoid surrounded by osteoblasts. (mypathologyreport.ca)
  • Pathologists use the phrase "osteoblastic rimming" to describe osteoid surrounded by osteoblasts. (mypathologyreport.ca)
  • Intra-articular osteoid osteoma occurs in 10% of cases and can involve the hip, elbow, and ankle. (medscape.com)
  • Although osteoid osteoma is a relatively common lesion, it rarely occurs at elbow. (ac.ir)
  • Initial treatment of osteoid osteoma remains nonoperative, with medications consisting of aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs). (medscape.com)
  • What is the typical treatment for osteoid osteoma? (mypathologyreport.ca)
  • Treatment options for osteoid osteoma include radio-frequency ablation or surgical removal of the tumour. (mypathologyreport.ca)
  • At Stanford Hospital, experts in MR guided high intensity focused ultrasound (MRgFUS or MRgHIFU) now offer this non-invasive treatment as an alternative to more invasive RF ablation or surgical treatments of osteoid osteoma. (stanford.edu)
  • Our objective is to provide a noninvasive treatment option for children with osteoid osteoma and we're very pleased with the results of this clinical trial," says Karun Sharma, M.D., Ph.D., director of Interventional Radiology at Children's National and principal investigator for the osteoid osteoma trial. (medgadget.com)
  • The United States Food and Drug Administration (FDA) recently announced that it had approved Profound Medical's Sonalleve MR-guided High Intensity Focused Ultrasound (MR-HIFU) system for the treatment of osteoid osteoma (OO) in the extremities. (fusfoundation.org)
  • Sonalleve ® has also been approved by the China National Medical Products Administration for the non-invasive treatment of uterine fibroids and has FDA approval under a Humanitarian Device Exemption for the treatment of osteoid osteoma. (globenewswire.com)
  • This feature is important because some types of bone cancer can look similar to osteoid osteoma under the microscope, but bone cancer does not show osteoblastic rimming. (mypathologyreport.ca)
  • Although the osteoid osteoma does not spread through the body, it shows side-effects that cause pain and discomfort in patients. (scirp.org)
  • The rarest of rare case reports for osteoid osteoma was in Maxilla, Nasal, Ribs, and Sarcrum. (scirp.org)
  • Diagnostic evaluations should include thin-slice CT scan to assist in planning the most restricted/conservative en-bloc surgical resection while preserving vertebral stability with facet preservation, and thus avoiding instrumented fusions. (aku.edu)
  • Generally, osteoid osteoma affects young males. (bvsalud.org)
  • however, osteoid osteoma is capable of mimicking, or being mimicked by, various other conditions, and this may result in prolonged diagnostic and therapeutic process, along with associated complications. (medscape.com)
  • Osteoid osteoma can occur anywhere and can involve either a single bone or several bones. (medscape.com)
  • Osteoid osteoma is reported to occur in the cortex of the shafts of long bones in 80-90% of cases. (medscape.com)
  • Conservative surgery for osteoid osteoma of the lumbar vertebrae" by Tashfeen Ahmad, Muhammad Fawwad et al. (aku.edu)
  • The occurrence of osteoid osteoma in flat bones rarely has been reported. (scirp.org)
  • For reviewing the literature in the field, we extracted all publications indexed as a MeSH Major Topic of "osteoma, osteoid" in MEDLINE database via PubMed search engine throughout 2006-2015. (scirp.org)
  • The literature review of osteoid osteoma in MEDLINE showed that, there have been only 134 rare case reports about osteoid osteoma which were published and indexed in MEDLINE during the last decade (2006-2015). (scirp.org)
  • Second, all case reports indexed as a Mesh Major Topic of "osteoma, osteoid" in MEDLINE database during years 2006-2015 was extracted and analyzed. (scirp.org)
  • We searched the literature for osteoid osteoma in the database of MEDLINE using PubMed search engine with restricting the time span in a period of 10 years (2006- 2015). (scirp.org)
  • The osteoid osteoma appears predominantly in male patients. (scirp.org)
  • The objective of current study was to determine the rare location of osteoid osteoma in patients referred to the orthopedic hospital of Tabriz University of Medical Sciences during years 2014-2015. (scirp.org)
  • It was great to see such promising and robust data on movement disorders, fibroids, breast cancer, and other indications that have been underway for a while," said Foundation Chairman Neal F. Kassell, MD. "But it was really astonishing to see new ground being broken through clever applications of the technology to treat conditions like hypertension, osteoid osteoma, obsessive compulsive disorder, and lung cancer. (fusfoundation.org)