Skull Base
Skull Base Neoplasms
Skull Fractures
Pancreatic Neoplasms
Skull Fracture, Depressed
Neoplasms
Parietal Bone
Neoplasms, Cystic, Mucinous, and Serous
Neoplasms, Multiple Primary
Craniosynostoses
Tomography, X-Ray Computed
Neoplasms, Second Primary
Dinosaurs
Skull Fracture, Basilar
Sellar chondroma--case report. (1/237)
A 12-year-old boy presented with right visual disturbance. Skull radiography and computed tomography (CT) showed an irregular deformity of the sella turcica, hypertrophic change of the dorsum sellae, and an inhomogeneously calcified mass in the sella turcica. Magnetic resonance (MR) imaging demonstrated the mass lesion filled the hypophyseal fossa, and extended to the dorsum sellae, right cavernous sinus, and right suprasellar region. The Dolenc pterional combined epidural and subdural approach was carried out. The histological diagnosis was chondroma. Sellar chondroma requires relief of the compression to the chiasm or optic nerve as soon as possible, so partial resection can still be beneficial. However, follow-up MR imaging or CT, visual examination, and control of pituitary dysfunction are required after the operation. (+info)Skull metastasis of Ewing's sarcoma--three case reports. (2/237)
Three cases of skull metastasis of Ewing's sarcoma were treated. The metastatic lesion was located at the midline of the skull above the superior sagittal sinus in all cases. Surgery was performed in two patients with solitary skull lesions involving short segments of the superior sagittal sinus without remarkable systemic metastasis, resulting in good outcome. The third patient had extensive, multiple tumors involving the superior sagittal sinus which could not be excised, and died due to intracranial hypertension. The surgical indication for skull metastasis of Ewing's sarcoma depends on the location and length of the involved superior sagittal sinus, and general condition. (+info)Multimodality management of a case of primary osteogenic sarcoma of the zygoma. (3/237)
Craniofacial osteogenic sarcomas are rare primary malignant bone tumors and very few cases involving zygomatic bone were reported in literature. We present our experience of multimodality management of a case of primary osteogenic sarcoma of zygoma. Wide radical excision of the tumor including the parotid gland was done followed by three cycles of adjuvant chemotherapy and fifty Gy of external radiotherapy. The patient is disease-free at two years follow-up. Till 1970s, craniofacial osteogenic sarcomas were managed mainly by radical surgery with a high local failure rate. With the advances made in the field of radiotherapy and chemotherapy, multimodality therapy is playing a major role in the treatment of these aggressive tumors with better overall and disease-free survival. (+info)A heterotopic cerebellum presenting as a suprasellar mass with associated nasopharyngeal teratoma. (4/237)
We present a case of nasopharyngeal teratoma that was discovered in association with a suprasellar heterotopic cerebellum in a newborn. Well-differentiated, heterotopic, cerebellar masses have been reported in the orbits, spine, and frontal encephalocele but not, to our knowledge, in the suprasellar region. In this report, we describe the imaging findings and discuss the possible origins of the two masses discovered in this case. (+info)Metastatic tumors in the sellar and parasellar regions: clinical review of four cases. (5/237)
Metastatic tumors in the sellar and parasellar regions are uncommon and rarely detected in clinical practice. We present four cases of sellar and parasellar metastatic tumors, which metastasized from distant organ in one case and extended directly from adjacent structures in three. Common presenting symptoms were cranial neuropathies, headache and facial pain. Invasion into the cavernous sinus was noted in all cases. We report rare cases of sellar and parasellar metastases. Also, we should consider the possibility of metastasis in these regions for patients who showed the above clinical presentations in systemic cancer patients. In extensive diseases, transient symptomatic relief could be obtained by direct surgical management, even in restricted degree. (+info)Ossifying fibroma in a llama. (6/237)
A 4.5-year-old llama was admitted for evaluation of a firm mass rostral and ventral to the medial canthus of the left eye. Mucopurulent nasal discharge and absence of airflow through the left nostril were noted. Radiographs of the skull revealed a sharply demarcated soft tissue mass with faint mineralization. Endoscopy of the nasal passages revealed a mucosa-covered mass originating in the area of the second premolar, extending to the edge of the soft palate, and obstructing the airway. Examination of the oral cavity revealed a missing second molar and a mass protruding 2-cm from the empty alveolus. An ossifying fibroma, a previously unreported tumor in llamas, was diagnosed at postmortem examination. (+info)Inflammatory myofibroblastic tumor involving the pterygopalatine fossa. (7/237)
SUMMARY: Inflammatory myofibroblastic tumors (IMT) comprise a rare group of lesions characterized histologically by acute and chronic inflammatory cells with a variable degree of fibrous stroma. Occurrence in the extracranial head and neck in children is unusual, and involvement in the pterygopalatine fossa has not, to our knowledge, been reported as occurring in this age group. We present the CT findings of an IMT of the pterygopalatine fossa in a 6-year-old female patient with a 2-week history of fever and a painless swelling of the left cheek. The diagnosis of IMT should be included in the differential diagnosis of a child presenting with an aggressive mass associated with systemic features such as fever, elevated sedimentation rate, and leukocytosis. (+info)Hemangioendothelioma of the temporal bone with radiologic findings resembling hemangioma. (8/237)
SUMMARY: Hemangioendotheliomas are rare vascular tumors that can affect bone. They account for 0.5% to 1.0% of malignant primary bone tumors. Only four cases have been reported involving the temporal bone. A 5-year-old child with grade II hemangioendothelioma of the right temporal bone is presented, and the radiologic findings on different imaging studies are described. The patient was treated with preoperative endovascular embolization followed by wide surgical resection. The imaging patterns of this malignant tumor may be similar to those of a benign lesion. (+info)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.
The skull is the bony structure that encloses and protects the brain, the eyes, and the ears. It is composed of two main parts: the cranium, which contains the brain, and the facial bones. The cranium is made up of several fused flat bones, while the facial bones include the upper jaw (maxilla), lower jaw (mandible), cheekbones, nose bones, and eye sockets (orbits).
The skull also provides attachment points for various muscles that control chewing, moving the head, and facial expressions. Additionally, it contains openings for blood vessels, nerves, and the spinal cord to pass through. The skull's primary function is to protect the delicate and vital structures within it from injury and trauma.
The skull base is the lower part of the skull that forms the floor of the cranial cavity and the roof of the facial skeleton. It is a complex anatomical region composed of several bones, including the frontal, sphenoid, temporal, occipital, and ethmoid bones. The skull base supports the brain and contains openings for blood vessels and nerves that travel between the brain and the face or neck. The skull base can be divided into three regions: the anterior cranial fossa, middle cranial fossa, and posterior cranial fossa, which house different parts of the brain.
Skull base neoplasms refer to abnormal growths or tumors located in the skull base, which is the region where the skull meets the spine and where the brain connects with the blood vessels and nerves that supply the head and neck. These neoplasms can be benign (non-cancerous) or malignant (cancerous), and they can arise from various types of cells in this area, including bone, nerve, glandular, and vascular tissue.
Skull base neoplasms can cause a range of symptoms depending on their size, location, and growth rate. Some common symptoms include headaches, vision changes, hearing loss, facial numbness or weakness, difficulty swallowing, and balance problems. Treatment options for skull base neoplasms may include surgery, radiation therapy, chemotherapy, or a combination of these approaches. The specific treatment plan will depend on the type, size, location, and stage of the tumor, as well as the patient's overall health and medical history.
A skull fracture is a break in one or more of the bones that form the skull. It can occur from a direct blow to the head, penetrating injuries like gunshot wounds, or from strong rotational forces during an accident. There are several types of skull fractures, including:
1. Linear Skull Fracture: This is the most common type, where there's a simple break in the bone without any splintering, depression, or displacement. It often doesn't require treatment unless it's near a sensitive area like an eye or ear.
2. Depressed Skull Fracture: In this type, a piece of the skull is pushed inward toward the brain. Surgery may be needed to relieve pressure on the brain and repair the fracture.
3. Diastatic Skull Fracture: This occurs along the suture lines (the fibrous joints between the skull bones) that haven't fused yet, often seen in infants and young children.
4. Basilar Skull Fracture: This involves fractures at the base of the skull. It can be serious due to potential injury to the cranial nerves and blood vessels located in this area.
5. Comminuted Skull Fracture: In this severe type, the bone is shattered into many pieces. These fractures usually require extensive surgical repair.
Symptoms of a skull fracture can include pain, swelling, bruising, bleeding (if there's an open wound), and in some cases, clear fluid draining from the ears or nose (cerebrospinal fluid leak). Severe fractures may cause brain injury, leading to symptoms like confusion, loss of consciousness, seizures, or neurological deficits. Immediate medical attention is necessary for any suspected skull fracture.
Pancreatic neoplasms refer to abnormal growths in the pancreas that can be benign or malignant. The pancreas is a gland located behind the stomach that produces hormones and digestive enzymes. Pancreatic neoplasms can interfere with the normal functioning of the pancreas, leading to various health complications.
Benign pancreatic neoplasms are non-cancerous growths that do not spread to other parts of the body. They are usually removed through surgery to prevent any potential complications, such as blocking the bile duct or causing pain.
Malignant pancreatic neoplasms, also known as pancreatic cancer, are cancerous growths that can invade and destroy surrounding tissues and organs. They can also spread (metastasize) to other parts of the body, such as the liver, lungs, or bones. Pancreatic cancer is often aggressive and difficult to treat, with a poor prognosis.
There are several types of pancreatic neoplasms, including adenocarcinomas, neuroendocrine tumors, solid pseudopapillary neoplasms, and cystic neoplasms. The specific type of neoplasm is determined through various diagnostic tests, such as imaging studies, biopsies, and blood tests. Treatment options depend on the type, stage, and location of the neoplasm, as well as the patient's overall health and preferences.
A depressed skull fracture is a type of skull fracture where a piece of the skull bone is pushed inward (depressed) toward the brain. This type of fracture can potentially cause damage to the underlying brain tissue and may require surgical intervention for proper treatment and to reduce the risk of complications such as infection or increased intracranial pressure. Depressed skull fractures are often caused by high-force trauma, such as a car accident or a fall from significant height.
Neoplasms are abnormal growths of cells or tissues in the body that serve no physiological function. They can be benign (non-cancerous) or malignant (cancerous). Benign neoplasms are typically slow growing and do not spread to other parts of the body, while malignant neoplasms are aggressive, invasive, and can metastasize to distant sites.
Neoplasms occur when there is a dysregulation in the normal process of cell division and differentiation, leading to uncontrolled growth and accumulation of cells. This can result from genetic mutations or other factors such as viral infections, environmental exposures, or hormonal imbalances.
Neoplasms can develop in any organ or tissue of the body and can cause various symptoms depending on their size, location, and type. Treatment options for neoplasms include surgery, radiation therapy, chemotherapy, immunotherapy, and targeted therapy, among others.
The parietal bone is one of the four flat bones that form the skull's cranial vault, which protects the brain. There are two parietal bones in the skull, one on each side, located posterior to the frontal bone and temporal bone, and anterior to the occipital bone. Each parietal bone has a squamous part, which forms the roof and sides of the skull, and a smaller, wing-like portion called the mastoid process. The parietal bones contribute to the formation of the coronal and lambdoid sutures, which are fibrous joints that connect the bones in the skull.
Neoplasms: Neoplasms refer to abnormal growths of tissue that can be benign (non-cancerous) or malignant (cancerous). They occur when the normal control mechanisms that regulate cell growth and division are disrupted, leading to uncontrolled cell proliferation.
Cystic Neoplasms: Cystic neoplasms are tumors that contain fluid-filled sacs or cysts. These tumors can be benign or malignant and can occur in various organs of the body, including the pancreas, ovary, and liver.
Mucinous Neoplasms: Mucinous neoplasms are a type of cystic neoplasm that is characterized by the production of mucin, a gel-like substance produced by certain types of cells. These tumors can occur in various organs, including the ovary, pancreas, and colon. Mucinous neoplasms can be benign or malignant, and malignant forms are often aggressive and have a poor prognosis.
Serous Neoplasms: Serous neoplasms are another type of cystic neoplasm that is characterized by the production of serous fluid, which is a thin, watery fluid. These tumors commonly occur in the ovary and can be benign or malignant. Malignant serous neoplasms are often aggressive and have a poor prognosis.
In summary, neoplasms refer to abnormal tissue growths that can be benign or malignant. Cystic neoplasms contain fluid-filled sacs and can occur in various organs of the body. Mucinous neoplasms produce a gel-like substance called mucin and can also occur in various organs, while serous neoplasms produce thin, watery fluid and commonly occur in the ovary. Both mucinous and serous neoplasms can be benign or malignant, with malignant forms often being aggressive and having a poor prognosis.
Cranial sutures are the fibrous joints that connect and hold together the bones of the skull (cranium) in humans and other animals. These sutures provide flexibility for the skull during childbirth and growth, allowing the skull to expand as the brain grows in size, especially during infancy and early childhood.
There are several cranial sutures in the human skull, including:
1. The sagittal suture, which runs along the midline of the skull, connecting the two parietal bones.
2. The coronal suture, which connects the frontal bone to the two parietal bones.
3. The lambdoid suture, which connects the occipital bone to the two parietal bones.
4. The squamosal suture, which connects the temporal bone to the parietal bone.
5. The frontosphenoidal and sphenoethmoidal sutures, which connect the frontal bone, sphenoid bone, and ethmoid bone in the anterior cranial fossa.
These sutures are typically made up of a specialized type of connective tissue called Sharpey's fibers, which interdigitate with each other to form a strong yet flexible joint. Over time, as the skull bones fully fuse together, these sutures become less prominent and eventually ossify (turn into bone). In some cases, abnormalities in cranial suture development or fusion can lead to medical conditions such as craniosynostosis.
Skin neoplasms refer to abnormal growths or tumors in the skin that can be benign (non-cancerous) or malignant (cancerous). They result from uncontrolled multiplication of skin cells, which can form various types of lesions. These growths may appear as lumps, bumps, sores, patches, or discolored areas on the skin.
Benign skin neoplasms include conditions such as moles, warts, and seborrheic keratoses, while malignant skin neoplasms are primarily classified into melanoma, squamous cell carcinoma, and basal cell carcinoma. These three types of cancerous skin growths are collectively known as non-melanoma skin cancers (NMSCs). Melanoma is the most aggressive and dangerous form of skin cancer, while NMSCs tend to be less invasive but more common.
It's essential to monitor any changes in existing skin lesions or the appearance of new growths and consult a healthcare professional for proper evaluation and treatment if needed.
Multiple primary neoplasms refer to the occurrence of more than one primary malignant tumor in an individual, where each tumor is unrelated to the other and originates from separate cells or organs. This differs from metastatic cancer, where a single malignancy spreads to multiple sites in the body. Multiple primary neoplasms can be synchronous (occurring at the same time) or metachronous (occurring at different times). The risk of developing multiple primary neoplasms increases with age and is associated with certain genetic predispositions, environmental factors, and lifestyle choices such as smoking and alcohol consumption.
Craniosynostosis is a medical condition that affects the skull of a developing fetus or infant. It is characterized by the premature closure of one or more of the fibrous sutures between the bones of the skull (cranial sutures). These sutures typically remain open during infancy to allow for the growth and development of the brain.
When a suture closes too early, it can restrict the growth of the surrounding bones and cause an abnormal shape of the head. The severity of craniosynostosis can vary depending on the number of sutures involved and the extent of the premature closure. In some cases, craniosynostosis can also lead to increased pressure on the brain, which can cause a range of neurological symptoms.
There are several types of craniosynostoses, including:
1. Sagittal synostosis: This is the most common type and involves the premature closure of the sagittal suture, which runs from front to back along the top of the head. This can cause the skull to grow long and narrow, a condition known as scaphocephaly.
2. Coronal synostosis: This type involves the premature closure of one or both of the coronal sutures, which run from the temples to the front of the head. When one suture is affected, it can cause the forehead to bulge and the eye socket on that side to sink in (anterior plagiocephaly). When both sutures are affected, it can cause a flattened appearance of the forehead and a prominent back of the head (brachycephaly).
3. Metopic synostosis: This type involves the premature closure of the metopic suture, which runs from the top of the forehead to the bridge of the nose. It can cause a triangular shape of the forehead and a prominent ridge along the midline of the skull (trigonocephaly).
4. Lambdoid synostosis: This is the least common type and involves the premature closure of the lambdoid suture, which runs along the back of the head. It can cause an asymmetrical appearance of the head and face, as well as possible neurological symptoms.
In some cases, multiple sutures may be affected, leading to more complex craniofacial abnormalities. Treatment for craniosynostosis typically involves surgery to release the fused suture(s) and reshape the skull. The timing of the surgery depends on the type and severity of the condition but is usually performed within the first year of life. Early intervention can help prevent further complications, such as increased intracranial pressure and developmental delays.
The occipital bone is the single, posterior cranial bone that forms the base of the skull and encloses the brain. It articulates with the parietal bones anteriorly and the temporal bones laterally. The occipital bone also contains several important structures such as the foramen magnum, through which the spinal cord connects to the brain, and the external and internal occipital protuberances, which serve as attachment points for neck muscles.
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.
Kidney neoplasms refer to abnormal growths or tumors in the kidney tissues that can be benign (non-cancerous) or malignant (cancerous). These growths can originate from various types of kidney cells, including the renal tubules, glomeruli, and the renal pelvis.
Malignant kidney neoplasms are also known as kidney cancers, with renal cell carcinoma being the most common type. Benign kidney neoplasms include renal adenomas, oncocytomas, and angiomyolipomas. While benign neoplasms are generally not life-threatening, they can still cause problems if they grow large enough to compromise kidney function or if they undergo malignant transformation.
Early detection and appropriate management of kidney neoplasms are crucial for improving patient outcomes and overall prognosis. Regular medical check-ups, imaging studies, and urinalysis can help in the early identification of these growths, allowing for timely intervention and treatment.
A "second primary neoplasm" is a distinct, new cancer or malignancy that develops in a person who has already had a previous cancer. It is not a recurrence or metastasis of the original tumor, but rather an independent cancer that arises in a different location or organ system. The development of second primary neoplasms can be influenced by various factors such as genetic predisposition, environmental exposures, and previous treatments like chemotherapy or radiation therapy.
It is important to note that the definition of "second primary neoplasm" may vary slightly depending on the specific source or context. In general medical usage, it refers to a new, separate cancer; however, in some research or clinical settings, there might be more precise criteria for defining and diagnosing second primary neoplasms.
Dinosaurs are a group of reptiles that were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period until the end of the Cretaceous period. They first appeared approximately 230 million years ago and went extinct around 65 million years ago.
Dinosaurs are characterized by their upright stance, with legs positioned directly under their bodies, and a wide range of body sizes and shapes. Some dinosaurs were enormous, such as the long-necked sauropods that could reach lengths of over 100 feet, while others were small and agile.
Dinosaurs are classified into two main groups: the saurischians (lizard-hipped) and the ornithischians (bird-hipped). The saurischians include both the large carnivorous theropods, such as Tyrannosaurus rex, and the long-necked sauropods. The ornithischians were primarily herbivores and included a diverse array of species, such as the armored ankylosaurs and the horned ceratopsians.
Despite their extinction, dinosaurs have left a lasting impact on our planet and continue to be a source of fascination for people of all ages. The study of dinosaurs, known as paleontology, has shed light on many aspects of Earth's history and the evolution of life on our planet.
Thyroid neoplasms refer to abnormal growths or tumors in the thyroid gland, which can be benign (non-cancerous) or malignant (cancerous). These growths can vary in size and may cause a noticeable lump or nodule in the neck. Thyroid neoplasms can also affect the function of the thyroid gland, leading to hormonal imbalances and related symptoms. The exact causes of thyroid neoplasms are not fully understood, but risk factors include radiation exposure, family history, and certain genetic conditions. It is important to note that most thyroid nodules are benign, but a proper medical evaluation is necessary to determine the nature of the growth and develop an appropriate treatment plan.
A basilar skull fracture is a type of skull fracture that involves the base of the skull. It is a serious and potentially life-threatening injury, as it can cause damage to the brainstem and cranial nerves. A basilar skull fracture may occur as a result of a severe head trauma, such as from a fall, car accident, or violent assault.
In a basilar skull fracture, the bones that form the base of the skull (the occipital bone, sphenoid bone, and temporal bones) are broken. This type of fracture can be difficult to diagnose on a routine skull X-ray, and may require further imaging studies such as a CT scan or MRI to confirm the diagnosis.
Symptoms of a basilar skull fracture may include:
* Battle's sign: a bruise behind the ear
* Raccoon eyes: bruising around the eyes
* Clear fluid leaking from the nose or ears (cerebrospinal fluid)
* Hearing loss
* Facial paralysis
* Difficulty swallowing
* Changes in level of consciousness
If you suspect that someone has a basilar skull fracture, it is important to seek medical attention immediately. This type of injury requires prompt treatment and close monitoring to prevent complications such as infection or brain swelling.
Infratemporal fossa
Rathke's pouch
Neuroplastic surgery
Adamantinoma
Chordoma
List of MeSH codes (C05)
List of MeSH codes (C04)
Hypoglossal canal
Altered level of consciousness
Biphenotypic sinonasal sarcoma
Osteoma
List of diseases (T)
Computed tomography of the head
Proton therapy
Epithelial-myoepithelial carcinoma of the lung
Brain tumor
Splenogonadal fusion
Melanotic neuroectodermal tumor of infancy
Krapina Neanderthal site
List of diseases (L)
Ollier disease
Pineal gland
Osteosarcoma
List of MeSH codes (C21)
Ewing sarcoma
Transoral robotic surgery
Meningioma
Teratoma
Cerebral edema
2016 in archosaur paleontology
Researchers interested in Skull Base Neoplasms | Yale School of Medicine
Skull Neoplasms | Profiles RNS
92025003 - Benign neoplasm of bone of skull - SNOMED CT
Benign Tumors of the Skull Base: Practice Essentials, Epidemiology, Etiology
Transnasal illumination to guide the craniofacial resection of anterior skull base neoplasms<...
ESTRO ACROP guideline for target volume delineation of skull base tumors
Infratemporal fossa - Wikipedia
Publications | Plural Publishing
Nikolas Blevins, MD's Profile | Stanford Profiles
Portal Regional da BVS
California Children Services (CCS)
The Radiology Assistant : Trigeminal neuralgia
News 4/14/09 - HIStalk Practice
BVS Brasil
Pathology Outlines - Hemangioma
Mariana Bradshaw, Ph.D. - Neuro-Oncology Faculty | MD Anderson Cancer Center
National Coverage Determination: Cytogenetic Studies
Lisa M. DeAngelis, MD
Serous fluid: Metastatic sarcomas, melanoma, and other non-epithelial neoplasms - CytoJournal
Dr. Charles Suntra M.D., Doctor in Modesto, CA | Sutter Health
Thieme E-Journals - VCOT Open / Full Text
What Is C61 Malignant Neoplasm Of Prostate - ProstateProHelp.com
Brain Tumors in Dogs and Cats: Diagnosis and Therapy - WSAVA 2003 Congress - VIN
Dr. Peter B. Weber M.D., Doctor in San Francisco, CA | Sutter Health
Diabetes Insipidus in Animals - Endocrine System - Merck Veterinary Manual
Neurofibromatosis 1 and intracranial neoplasms of childhood | MedLink Neurology
Namespace
Lateral Temporal Bone Resection | Iowa Head and Neck Protocols
Benign neoplasm of pituitary gland (Concept Id: C0496901)
- MedGen - NCBI
IgG4-Related Disease of Skull Base: Case Series of 3 Patients with Headache - Fingerprint - The Rotterdam Eye Hospital and...
Tumors17
- Benign tumors of the skull base include true neoplasms, inflammatory masses, cysts, and developmental anomalies occurring at the osseous interface between the brain and the underlying structures of the head and neck. (medscape.com)
- Because of the complexities of the anatomic region and the relatively low incidence, patients with skull base tumors are best managed by an experienced multidisciplinary team. (medscape.com)
- The treatment of choice for the vast majority of benign skull base tumors is surgical excision. (medscape.com)
- As a whole, tumors of the skull base are uncommon entities, and the majority of them are malignant. (medscape.com)
- Benign skull base tumors can be classified into the pathogenetic and histologic groups listed below. (medscape.com)
- For skull base tumors, target definition is the key to safe high-dose treatments because surrounding normal tissues are very sensitive to radiation. (nih.gov)
- In the present work we established a joint ESTRO ACROP guideline for the target volume definition of skull base tumors. (nih.gov)
- Specific target delineation issues with regard to different skull base tumors, including pituitary adenomas, meningiomas, craniopharyngiomas, acoustic neuromas, chordomas and chondrosarcomas are presented. (nih.gov)
- This ESTRO ACROP guideline achieved detailed recommendations on target volume definition for skull base tumors, as well as comprehensive advice about imaging modalities and radiation techniques. (nih.gov)
- While most tumors metastatic to the serous membranes are of epithelial origin, cytologists should be aware that non-epithelial neoplasms can also cause malignant effusions including sarcomas, melanomas, germ cell tumors, and, more rarely, brain tumors. (cytojournal.com)
- Common non-epithelial neoplasms that may cause malignant effusions include malignant melanoma, sarcomas, and other neoplasms including germ cell tumors [ Figure 1 ]. (cytojournal.com)
- Skull tumors may affect the brain by local extension. (vin.com)
- Pituitary gland neoplasms and tumors arising from cranial nerves are considered secondary brain tumors. (vin.com)
- Neoplasms originating from the blood or bone marrow (leukemias and myeloproliferative disorders) are not considered solid tumors. (mycancergenome.org)
- Both microscopic and endoscopic approaches will be gaining more usefulness in managing skull base tumors and should be used collaboratively. (ui.ac.id)
- Materials and methods We present an evidence-based review of the perioperative process involved in endoscopic embolization of skull base tumors. (bmj.com)
- The primary skull base tumors that most commonly benefit include meningioma, juvenile angiofibroma, and paraganglioma. (bmj.com)
Meningioma3
- Cerebral meningioma is the most frequently reported primary brain tumor of cats and accounts for almost 10% of all nonhematopoietic neoplasms. (vin.com)
- The dura is opened, and the meningioma can be seen extending en plaque over the surface of the brain. (medscape.com)
- Experience in endoscopic resection of skull base benign and malignant neoplasms is gained (e.g., esthesioneuroblastoma, meningioma, chordoma). (utoronto.ca)
Malignant neoplasm11
- I can find the C64 family of codes for malignant neoplasm of kidney (his primary cancer that subsequently spread to his skull). (histalkpractice.com)
- I can find C79.31 Secondary malignant neoplasm of brain and C79.51 Secondary malignant neoplasm of bone. (histalkpractice.com)
- But I can't find any code for secondary malignant neoplasm of the skull. (histalkpractice.com)
- You cannot use C41.0 Malignant neoplasm of bones of skull and face, because that must be the primary cancer, not the spread of the cancer to the skull. (histalkpractice.com)
- C61 is a billable code used to specify a medical diagnosis of malignant neoplasm of prostate. (prostateprohelp.com)
- One may also ask, what does c61 malignant neoplasm of prostate mean? (prostateprohelp.com)
- The overall prognosis of a patient with Malignant Neoplasm of the Prostate depends on the age, overall health of the patient, and stage of the disease process. (prostateprohelp.com)
- Since this is a slow growing tumor, even if the diagnosis is made a bit late with adequate treatments the prognosis for the patient overall is fair to good post treatment of Malignant Neoplasm of the Prostate. (prostateprohelp.com)
- Beside above, what is a malignant neoplasm mean? (prostateprohelp.com)
- A malignant neoplasm is a cancerous tumor , an abnormal growth that can grow uncontrolled and spread to other parts of the body. (prostateprohelp.com)
- A benign or malignant neoplasm arising from tissues that do not include fluid areas. (mycancergenome.org)
Intracranial neoplasms4
- Intracranial neoplasms can arise from any of the structures or cell types present in the cranial vault, including the brain, meninges, pituitary gland, skull, and even residual embryonic tissue. (cancernetwork.com)
- Neurofibromatosis 1 is an autosomally dominated inherited genetic condition that predisposes those involved to the development of intracranial neoplasms. (medlink.com)
- Results A total of 6277 neurosurgical procedures for intracranial neoplasms were performed. (elsevierpure.com)
- Meningiomas account for approximately 20% of all primary intracranial neoplasms. (medscape.com)
Benign3
- Accordingly, no accurate data regarding the incidence of benign skull base neoplasms are available. (medscape.com)
- Carcinoma in situ of the prostate is classified to code 233.4, and a benign neoplasm of the prostate goes to code 222.2. (prostateprohelp.com)
- Approximately 200-250 endoscopic sinus surgery procedures/year plus significant exposure to head and neck oncology cases including endoscopic and open skull base resections for benign and malignant disease. (utoronto.ca)
Tumor2
- The light is introduced transnasally and serves to outline the perimeter of the tumor, helping to direct the safe placement of intracranial osteotomies and en bloc tumor removal. (johnshopkins.edu)
- Diagnosing non-epithelial malignancies in effusion specimens based entirely upon their cytomorphologic features is difficult because these neoplasms often exhibit considerable morphological overlap and their cytomorphology can differ from the original tumor. (cytojournal.com)
Surgery9
- Operative procedures of the skull base are relatively recent developments within the field of head and neck surgery. (medscape.com)
- Surgical Simulation -- Developing immersive environment for simulation of ear and skull base surgery for training, technique assessment, and preoperative planning. (stanford.edu)
- Both dogs presented with a space-occupying mass in which excisional surgery without the use of implants would have resulted in incomplete closure due to extensive bone defects of the skull. (thieme-connect.com)
- The aim of the present case report is to describe the use of individualized three-dimensional-printed titanium implants for skull reconstruction following oncological surgery. (thieme-connect.com)
- Temporal Bone Neoplasms and Lateral Cranial Base Surgery. (uiowa.edu)
- Dr. Witterick's and Dr. Vescan's practices include advanced rhinology, endoscopic and open anterior skull base surgery and head and neck oncologic surgery. (utoronto.ca)
- Background: The objective of this study was to evaluate the potential impact of advanced endoscopic techniques on the current practice patterns in skull base surgery. (elsevierpure.com)
- Wide variation in coding philosophy was noted, including use of unlisted neurosurgical (28%), open skull base (28%), unlisted endoscopic (24%), and sinus surgery (20%) codes. (elsevierpure.com)
- Conclusion: The present survey attests to the widespread adaptation of endoscopic techniques in the management schema of skull base surgery. (elsevierpure.com)
Cranial nerve1
- Neoplasms involving the brain stem may result in cranial nerve deficits. (vin.com)
Chondrosarcoma1
- Representative examples include epithelial neoplasms (e.g. lung carcinoma, prostate carcinoma, breast carcinoma, colon carcinoma), and neoplasms arising from the soft tissues and bones (e.g. leiomyosarcoma, liposarcoma, chondrosarcoma, osteosarcoma). (mycancergenome.org)
Pituitary gland1
- A neoplasm that arises from the anterior or posterior lobe of pituitary gland and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential. (nih.gov)
Diagnosis1
- S07.1XXA is a billable diagnosis code used to specify a medical diagnosis of crushing injury of skull, initial encounter. (icdlist.com)
Anterior4
- The skull base can be divided arbitrarily into anatomic subsites corresponding to the major intracranial compartments as follows: (1) anterior skull base (anterior cranial fossa), (2) middle skull base (middle cranial fossa), (3) posterior skull base (posterior cranial fossa), and (4) central skull base (brainstem). (medscape.com)
- The authors describe use of a flexible fiberoptic light source to guide the craniofacial resection of anterior skull base neoplasms. (johnshopkins.edu)
- Cohen, AR & Tartell, PB 1993, ' Transnasal illumination to guide the craniofacial resection of anterior skull base neoplasms ', Surgical neurology , vol. 40, no. 5, pp. 420-423. (johnshopkins.edu)
- anterior skull base neoplasms. (utoronto.ca)
Salivary1
- Nonsquamous cell cancers, including minor salivary gland cancers, sarcomas, and melanomas, account for the other half (see the histologic distribution of hard palate malignant neoplasms and the histologic types and frequencies of minor salivary gland neoplasms of the palate below). (medscape.com)
Bony1
- Neoplasms of the bony part of the skull. (umassmed.edu)
Patients5
- The development of patient-specific 3D printing will improve surgical planning and enable successful surgical results in veterinary patients with extensive tumours of the skull. (thieme-connect.com)
- ABL1 is altered in 1.76% of solid neoplasm patients [ 2 ]. (mycancergenome.org)
- BCR is altered in 1.37% of solid neoplasm patients [ 2 ]. (mycancergenome.org)
- BRAF is altered in 6.45% of solid neoplasm patients [ 2 ]. (mycancergenome.org)
- NF1 is altered in 7.01% of solid neoplasm patients [ 2 ]. (mycancergenome.org)
Neoplastic1
- If something is "neoplastic," it has to do with the neoplasm. (msdmanuals.com)
Vascular2
- Other types of pathology in the brain stem segment are neoplasms (mostly glioma and metastases), vascular lesions (infarction, cavernoma) and infections (rhombencephalitis). (radiologyassistant.nl)
- Plain skull radiograph may reveal hyperostosis and increased vascular markings of the skull, as well as intracranial calcifications. (medscape.com)
Descriptor1
- Skull Neoplasms" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (umassmed.edu)
Abnormal growth1
- Paraneoplastic Syndromes A neoplasm is an abnormal growth in your body that may be cancerous. (msdmanuals.com)
Metastatic1
- As malignant cells have a tendency to round up in body fluids these non-epithelial neoplasms can therefore mimic reactive mesothelial cells and metastatic adenocarcinoma. (cytojournal.com)
Endoscopic4
- Head and neck oncologic surgeries are performed at Sinai Health and endoscopic and open skull base resections are performed at the University Health Network (Toronto Western Site) in conjunction with Neurosurgery. (utoronto.ca)
- 3. To gain experience in endoscopic and open skull base resections. (utoronto.ca)
- Open and endoscopic skull base techniques were used by 91% and 80%, respectively. (elsevierpure.com)
- Overall, 87% were supportive of the creation of dedicated endoscopic skull base codes. (elsevierpure.com)
Brain5
- It says he feared spread of his cancer to his brain, but in reality his cancer had spread to his skull and as best I can tell, successfully treated. (histalkpractice.com)
- Often, the injury is minor because your skull is hard and it protects your brain. (icdlist.com)
- But other head injuries can be more severe, such as a skull fracture, concussion, or traumatic brain injury. (icdlist.com)
- With an open, or penetrating, injury, an object pierces the skull and enters the brain. (icdlist.com)
- Meningiomas commonly are found at the surface of the brain, either over the convexity or at the skull base. (medscape.com)
FRACTURES1
- In contrast to fractures and defects in the appendicular skeleton, reconstruction of the skull and spine is often complicated due to the individual variety in anatomy or the lack of veterinary implants. (thieme-connect.com)
Hemorrhage2
- The lesions responsible for the disruption of ADH synthesis or secretion in hypophyseal diabetes insipidus include large pituitary neoplasms (endocrinologically active or inactive), a dorsally expanding cyst or inflammatory granuloma, and traumatic injury to the skull, with hemorrhage and glial proliferation in the neurohypophyseal system. (merckvetmanual.com)
- Purpose Neuroendovascular procedures are performed in skull base neoplasias with the objective of achieving preoperative embolization to increase the safety of surgical procedures by limiting intraoperative hemorrhage, reduce the need for blood transfusion, increase visibility in the surgical field, and shortening hospitalization length. (bmj.com)
Surgical1
- Various surgical approaches have evolved to access the various parts of the skull base. (medscape.com)
Prostate1
- What does screening for malignant neoplasms of prostate mean? (prostateprohelp.com)
