Colloid Cysts
Colloids
Third Ventricle
Cysts
Cerebral Ventriculography
Neuroendoscopy
Cerebral Ventricle Neoplasms
Technetium Tc 99m Sulfur Colloid
Mamillary Bodies
Brain Diseases
Hydrocephalus
Fornix, Brain
Cerebral Ventricles
Epidermal Cyst
Technetium Compounds
Fatal Outcome
Mediastinal Cyst
Tomography, X-Ray Computed
Synovial Cyst
Bone Cysts
Plasma Substitutes
Gold Colloid, Radioactive
Hydroxyethyl Starch Derivatives
Bronchogenic Cyst
Dermoid Cyst
Treatment of colloid cysts of the third ventricle through neuroendoscopic Nd: YAG laser stereotaxis. (1/6)
(+info)Full scope of options. (2/6)
(+info)Endoscopic management of third ventricular colloid cysts: eight years' institutional experience and description of a new technique. (3/6)
(+info)Management outcome of the transcallosal, transforaminal approach to colloid cysts of the anterior third ventricle: an analysis of 78 cases. (4/6)
(+info)Colloid cyst of the third ventricle, hypothalamus, and heart: a dangerous link for sudden death. (5/6)
(+info)Large hemorrhagic colloid cyst in a 35-year-old male. (6/6)
(+info)Colloid cysts are benign (non-cancerous) tumors that typically form in the third ventricle of the brain, near the center of the brain and between the two hemispheres. These cysts are filled with a gel-like substance called colloid material, which gives them their name.
Colloid cysts are relatively rare, accounting for less than 1% of all primary brain tumors. They can occur at any age but are most commonly found in adults between the ages of 20 and 50.
While colloid cysts are generally slow-growing, they can cause symptoms if they become large enough to obstruct the flow of cerebrospinal fluid (CSF) in the brain. This obstruction can lead to increased pressure in the brain, a condition known as hydrocephalus. Symptoms of colloid cysts may include headache, nausea, vomiting, difficulty with balance and coordination, and changes in mental status.
Treatment for colloid cysts typically involves surgical removal of the cyst. This can often be done using minimally invasive techniques such as endoscopic surgery. In some cases, however, open surgery may be necessary to ensure complete removal of the cyst.
Colloids are a type of mixture that contains particles that are intermediate in size between those found in solutions and suspensions. These particles range in size from about 1 to 1000 nanometers in diameter, which is smaller than what can be seen with the naked eye, but larger than the molecules in a solution.
Colloids are created when one substance, called the dispersed phase, is dispersed in another substance, called the continuous phase. The dispersed phase can consist of particles such as proteins, emulsified fats, or finely divided solids, while the continuous phase is usually a liquid, but can also be a gas or a solid.
Colloids are important in many areas of medicine and biology, including drug delivery, diagnostic imaging, and tissue engineering. They are also found in nature, such as in milk, blood, and fog. The properties of colloids can be affected by factors such as pH, temperature, and the presence of other substances, which can influence their stability and behavior.
The third ventricle is a narrow, fluid-filled cavity in the brain that is located between the thalamus and hypothalamus. It is one of the four ventricles in the ventricular system of the brain, which produces and circulates cerebrospinal fluid (CSF) around the brain and spinal cord.
The third ventricle is shaped like a slit and communicates with the lateral ventricles through the interventricular foramen (also known as the foramen of Monro), and with the fourth ventricle through the cerebral aqueduct (also known as the aqueduct of Sylvius).
The third ventricle contains choroid plexus tissue, which produces CSF. The fluid flows from the lateral ventricles into the third ventricle, then through the cerebral aqueduct and into the fourth ventricle, where it can circulate around the brainstem and spinal cord before being absorbed back into the bloodstream.
Abnormalities in the third ventricle, such as enlargement or obstruction of the cerebral aqueduct, can lead to hydrocephalus, a condition characterized by an accumulation of CSF in the brain.
A cyst is a closed sac, having a distinct membrane and division between the sac and its surrounding tissue, that contains fluid, air, or semisolid material. Cysts can occur in various parts of the body, including the skin, internal organs, and bones. They can be caused by various factors, such as infection, genetic predisposition, or blockage of a duct or gland. Some cysts may cause symptoms, such as pain or discomfort, while others may not cause any symptoms at all. Treatment for cysts depends on the type and location of the cyst, as well as whether it is causing any problems. Some cysts may go away on their own, while others may need to be drained or removed through a surgical procedure.
Cerebral ventriculography is a medical imaging technique that involves the injection of a contrast material into the cerebral ventricles, which are fluid-filled spaces within the brain. The purpose of this procedure is to produce detailed images of the ventricular system and the surrounding structures in order to diagnose and evaluate various neurological conditions, such as hydrocephalus (excessive accumulation of cerebrospinal fluid in the ventricles), tumors, or other abnormalities that may be causing obstruction or compression of the ventricular system.
The procedure typically involves inserting a thin, flexible tube called a catheter into the lateral ventricle of the brain through a small hole drilled in the skull. The contrast material is then injected through the catheter and X-ray images are taken as the contrast material flows through the ventricular system. These images can help to identify any abnormalities or blockages that may be present.
Cerebral ventriculography has largely been replaced by non-invasive imaging techniques, such as computed tomography (CT) and magnetic resonance imaging (MRI), which provide similar information without the need for invasive procedures. However, cerebral ventriculography may still be used in certain cases where these other methods are not sufficient to make a definitive diagnosis.
Neuroendoscopy is a minimally invasive surgical technique that involves the use of an endoscope to access and treat various conditions within the brain and spinal column. An endoscope is a long, flexible tube with a light and camera at its tip, which allows surgeons to view and operate on internal structures through small incisions or natural openings in the body.
In neuroendoscopy, the surgeon uses the endoscope to navigate through the brain's ventricular system (fluid-filled spaces) or other narrow spaces within the skull or spine to diagnose and treat conditions such as hydrocephalus, brain tumors, arachnoid cysts, and intraventricular hemorrhage.
The benefits of neuroendoscopy include reduced trauma to surrounding tissues, shorter hospital stays, faster recovery times, and improved outcomes compared to traditional open surgical approaches. However, neuroendoscopic procedures require specialized training and expertise due to the complexity of the anatomy involved.
Cerebral ventricle neoplasms refer to tumors that develop within the cerebral ventricles, which are fluid-filled spaces in the brain. These tumors can arise from various types of cells within the ventricular system, including the ependymal cells that line the ventricles, choroid plexus cells that produce cerebrospinal fluid, or other surrounding tissues.
Cerebral ventricle neoplasms can cause a variety of symptoms depending on their size and location, such as headaches, nausea, vomiting, vision changes, imbalance, weakness, or difficulty with mental tasks. The treatment options for these tumors may include surgical resection, radiation therapy, and chemotherapy, depending on the type and extent of the tumor. Regular follow-up care is essential to monitor for recurrence and manage any long-term effects of treatment.
Technetium Tc 99m Sulfur Colloid is a radioactive tracer used in medical imaging procedures, specifically in nuclear medicine. It is composed of tiny particles of sulfur colloid that are labeled with the radioisotope Technetium-99m. This compound is typically injected into the patient's body, where it accumulates in certain organs or tissues, depending on the specific medical test being conducted.
The radioactive emissions from Technetium Tc 99m Sulfur Colloid are then detected by a gamma camera, which produces images that can help doctors diagnose various medical conditions, such as liver disease, inflammation, or tumors. The half-life of Technetium-99m is approximately six hours, which means that its radioactivity decreases rapidly and is eliminated from the body within a few days.
The mamillary bodies are a pair of small, round structures located in the hypothalamus region of the brain. They play a crucial role in the limbic system, which is involved in emotions, memory, and learning. Specifically, the mamillary bodies are part of the circuit that forms the Papez circuit, a neural network responsible for memory and cognitive functions.
The mamillary bodies receive inputs from several brain regions, including the hippocampus, anterior thalamic nuclei, and cingulate gyrus. They then project this information to the thalamus, which in turn sends it to the cerebral cortex for further processing.
Damage to the mamillary bodies can result in memory impairment, as seen in patients with Korsakoff's syndrome, a condition often associated with chronic alcohol abuse.
Brain diseases, also known as neurological disorders, refer to a wide range of conditions that affect the brain and nervous system. These diseases can be caused by various factors such as genetics, infections, injuries, degeneration, or structural abnormalities. They can affect different parts of the brain, leading to a variety of symptoms and complications.
Some examples of brain diseases include:
1. Alzheimer's disease - a progressive degenerative disorder that affects memory and cognitive function.
2. Parkinson's disease - a movement disorder characterized by tremors, stiffness, and difficulty with coordination and balance.
3. Multiple sclerosis - a chronic autoimmune disease that affects the nervous system and can cause a range of symptoms such as vision loss, muscle weakness, and cognitive impairment.
4. Epilepsy - a neurological disorder characterized by recurrent seizures.
5. Brain tumors - abnormal growths in the brain that can be benign or malignant.
6. Stroke - a sudden interruption of blood flow to the brain, which can cause paralysis, speech difficulties, and other neurological symptoms.
7. Meningitis - an infection of the membranes surrounding the brain and spinal cord.
8. Encephalitis - an inflammation of the brain that can be caused by viruses, bacteria, or autoimmune disorders.
9. Huntington's disease - a genetic disorder that affects muscle coordination, cognitive function, and mental health.
10. Migraine - a neurological condition characterized by severe headaches, often accompanied by nausea, vomiting, and sensitivity to light and sound.
Brain diseases can range from mild to severe and may be treatable or incurable. They can affect people of all ages and backgrounds, and early diagnosis and treatment are essential for improving outcomes and quality of life.
Hydrocephalus is a medical condition characterized by an abnormal accumulation of cerebrospinal fluid (CSF) within the brain, leading to an increase in intracranial pressure and potentially causing damage to the brain tissues. This excessive buildup of CSF can result from either overproduction or impaired absorption of the fluid, which typically causes the ventricles (fluid-filled spaces) inside the brain to expand and put pressure on surrounding brain structures.
The condition can be congenital, present at birth due to genetic factors or abnormalities during fetal development, or acquired later in life as a result of injuries, infections, tumors, or other disorders affecting the brain's ability to regulate CSF flow and absorption. Symptoms may vary depending on age, severity, and duration but often include headaches, vomiting, balance problems, vision issues, cognitive impairment, and changes in behavior or personality.
Treatment for hydrocephalus typically involves surgically implanting a shunt system that diverts the excess CSF from the brain to another part of the body where it can be absorbed, such as the abdominal cavity. In some cases, endoscopic third ventriculostomy (ETV) might be an alternative treatment option, creating a new pathway for CSF flow within the brain. Regular follow-ups with neurosurgeons and other healthcare professionals are essential to monitor the condition and make any necessary adjustments to the treatment plan.
The fornix, in the context of brain anatomy, is a bundle of nerve fibers that arises from the hippocampus, a major component of the limbic system associated with memory and spatial navigation. The fornix plays a crucial role in conveying information between different parts of the brain.
The fornix has two primary divisions: the precommissural fornix and the postcommissural fornix. The precommissural fornix contains fibers that originate from the hippocampus and the subiculum, while the postcommissural fornix consists of fibers that originate from the septal nuclei and other structures in the limbic system.
The two divisions of the fornix join together to form a structure called the body of the fornix, which then curves around the thalamus and continues as the crura (plural of crus) of the fornix. The crura split into two columns that pass through the interventricular foramen and terminate in the hypothalamus, specifically at the mammillary bodies.
The fornix is an essential structure for memory function, particularly episodic memory (memory of specific events or episodes). Damage to the fornix can result in various cognitive impairments, including memory loss and difficulties with spatial navigation.
Cyst fluid refers to the fluid accumulated within a cyst, which is a closed sac-like or capsular structure, typically filled with liquid or semi-solid material. Cysts can develop in various parts of the body for different reasons, and the composition of cyst fluid may vary depending on the type of cyst and its location.
In some cases, cyst fluid might contain proteins, sugars, hormones, or even cells from the surrounding tissue. Infected cysts may have pus-like fluid, while cancerous or precancerous cysts might contain abnormal cells or tumor markers. The analysis of cyst fluid can help medical professionals diagnose and manage various medical conditions, including infections, inflammatory diseases, genetic disorders, and cancers.
It is important to note that the term 'cyst fluid' generally refers to the liquid content within a cyst, but the specific composition and appearance of this fluid may vary significantly depending on the underlying cause and type of cyst.
The cerebral ventricles are a system of interconnected fluid-filled cavities within the brain. They are located in the center of the brain and are filled with cerebrospinal fluid (CSF), which provides protection to the brain by cushioning it from impacts and helping to maintain its stability within the skull.
There are four ventricles in total: two lateral ventricles, one third ventricle, and one fourth ventricle. The lateral ventricles are located in each cerebral hemisphere, while the third ventricle is located between the thalami of the two hemispheres. The fourth ventricle is located at the base of the brain, above the spinal cord.
CSF flows from the lateral ventricles into the third ventricle through narrow passageways called the interventricular foramen. From there, it flows into the fourth ventricle through another narrow passageway called the cerebral aqueduct. CSF then leaves the fourth ventricle and enters the subarachnoid space surrounding the brain and spinal cord, where it can be absorbed into the bloodstream.
Abnormalities in the size or shape of the cerebral ventricles can indicate underlying neurological conditions, such as hydrocephalus (excessive accumulation of CSF) or atrophy (shrinkage) of brain tissue. Imaging techniques, such as computed tomography (CT) or magnetic resonance imaging (MRI), are often used to assess the size and shape of the cerebral ventricles in clinical settings.
An ovarian cyst is a sac or pouch filled with fluid that forms on the ovary. Ovarian cysts are quite common in women during their childbearing years, and they often cause no symptoms. In most cases, ovarian cysts disappear without treatment over a few months. However, larger or persistent cysts may require medical intervention, including surgical removal.
There are various types of ovarian cysts, such as functional cysts (follicular and corpus luteum cysts), which develop during the menstrual cycle due to hormonal changes, and non-functional cysts (dermoid cysts, endometriomas, and cystadenomas), which can form due to different causes.
While many ovarian cysts are benign, some may have malignant potential or indicate an underlying medical condition like polycystic ovary syndrome (PCOS). Regular gynecological check-ups, including pelvic examinations and ultrasounds, can help detect and monitor ovarian cysts.
Neurosurgical procedures are operations that are performed on the brain, spinal cord, and peripheral nerves. These procedures are typically carried out by neurosurgeons, who are medical doctors with specialized training in the diagnosis and treatment of disorders of the nervous system. Neurosurgical procedures can be used to treat a wide range of conditions, including traumatic injuries, tumors, aneurysms, vascular malformations, infections, degenerative diseases, and congenital abnormalities.
Some common types of neurosurgical procedures include:
* Craniotomy: A procedure in which a bone flap is temporarily removed from the skull to gain access to the brain. This type of procedure may be performed to remove a tumor, repair a blood vessel, or relieve pressure on the brain.
* Spinal fusion: A procedure in which two or more vertebrae in the spine are fused together using bone grafts and metal hardware. This is often done to stabilize the spine and alleviate pain caused by degenerative conditions or spinal deformities.
* Microvascular decompression: A procedure in which a blood vessel that is causing pressure on a nerve is repositioned or removed. This type of procedure is often used to treat trigeminal neuralgia, a condition that causes severe facial pain.
* Deep brain stimulation: A procedure in which electrodes are implanted in specific areas of the brain and connected to a battery-operated device called a neurostimulator. The neurostimulator sends electrical impulses to the brain to help alleviate symptoms of movement disorders such as Parkinson's disease or dystonia.
* Stereotactic radiosurgery: A non-invasive procedure that uses focused beams of radiation to treat tumors, vascular malformations, and other abnormalities in the brain or spine. This type of procedure is often used for patients who are not good candidates for traditional surgery due to age, health status, or location of the lesion.
Neurosurgical procedures can be complex and require a high degree of skill and expertise. Patients considering neurosurgical treatment should consult with a qualified neurosurgeon to discuss their options and determine the best course of action for their individual situation.
An epidermal cyst is a common benign skin condition characterized by the growth of a sac-like structure filled with keratin, a protein found in the outermost layer of the skin (epidermis). These cysts typically appear as round, firm bumps just under the surface of the skin, often on the face, neck, trunk, or scalp. They can vary in size from a few millimeters to several centimeters in diameter.
Epidermal cysts usually develop as a result of the accumulation of dead skin cells that become trapped within a hair follicle or a pilosebaceous unit (a structure that contains a hair follicle and an oil gland). The keratin produced by the skin cells then collects inside the sac, causing it to expand gradually.
These cysts are generally slow-growing, painless, and rarely cause any symptoms. However, they may become infected or inflamed, leading to redness, tenderness, pain, or pus formation. In such cases, medical attention might be necessary to drain the cyst or administer antibiotics to treat the infection.
Epidermal cysts can be removed surgically if they cause cosmetic concerns or become frequently infected. The procedure typically involves making an incision in the skin and removing the entire sac along with its contents to prevent recurrence.
Technetium compounds refer to chemical substances that contain the radioactive technetium (Tc) element. Technetium is a naturally rare element and does not have any stable isotopes, making it only exist in trace amounts in the Earth's crust. However, it can be produced artificially in nuclear reactors.
Technetium compounds are widely used in medical imaging as radioactive tracers in diagnostic procedures. The most common technetium compound is Technetium-99m (Tc-99m), which has a half-life of 6 hours and emits gamma rays that can be detected by external cameras. Tc-99m is often bound to various pharmaceuticals, such as methylene diphosphonate (MDP) or human serum albumin (HSA), to target specific organs or tissues in the body.
Technetium compounds are used in a variety of diagnostic procedures, including bone scans, lung perfusion scans, myocardial perfusion imaging, and brain scans. They provide valuable information about organ function, blood flow, and tissue metabolism, helping doctors diagnose various medical conditions such as cancer, heart disease, and bone fractures.
It is important to note that technetium compounds should only be used under the supervision of trained medical professionals due to their radioactive nature. Proper handling, administration, and disposal procedures must be followed to ensure safety and minimize radiation exposure.
A fatal outcome is a term used in medical context to describe a situation where a disease, injury, or illness results in the death of an individual. It is the most severe and unfortunate possible outcome of any medical condition, and is often used as a measure of the severity and prognosis of various diseases and injuries. In clinical trials and research, fatal outcome may be used as an endpoint to evaluate the effectiveness and safety of different treatments or interventions.
A mediastinal cyst is a rare, abnormal fluid-filled sac located in the mediastinum, which is the central part of the chest cavity that separates the lungs and contains various organs such as the heart, esophagus, trachea, thymus gland, and lymph nodes. Mediastinal cysts can be congenital (present at birth) or acquired (develop later in life). They are usually asymptomatic but can cause symptoms depending on their size and location. Symptoms may include chest pain, cough, difficulty breathing, or swallowing. Treatment typically involves surgical removal of the cyst to prevent complications such as infection, bleeding, or pressure on surrounding structures.
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.
A Synovial Cyst is a type of benign cyst that typically develops in the synovium, which is the membrane that lines and lubricates joint capsules. These cysts are filled with synovial fluid, which is the same lubricating fluid found inside joints. They usually form as a result of degenerative changes, trauma, or underlying joint diseases such as osteoarthritis.
Synovial cysts commonly occur in the spine (particularly in the facet joints), but they can also develop in other areas of the body, including the knees, hips, and hands. While synovial cysts are generally not harmful, they may cause discomfort or pain if they press on nearby nerves or restrict movement in the affected joint. Treatment options for synovial cysts range from conservative measures like physical therapy and pain management to surgical intervention in severe cases.
A bone cyst is a fluid-filled sac that develops within a bone. It can be classified as either simple (unicameral) or aneurysmal. Simple bone cysts are more common in children and adolescents, and they typically affect the long bones of the arms or legs. These cysts are usually asymptomatic unless they become large enough to weaken the bone and cause a fracture. Aneurysmal bone cysts, on the other hand, can occur at any age and can affect any bone, but they are most common in the leg bones and spine. They are characterized by rapidly growing blood-filled sacs that can cause pain, swelling, and fractures.
Both types of bone cysts may be treated with observation, medication, or surgery depending on their size, location, and symptoms. It is important to note that while these cysts can be benign, they should still be evaluated and monitored by a healthcare professional to ensure proper treatment and prevention of complications.
Plasma substitutes are fluids that are used to replace the plasma volume in conditions such as hypovolemia (low blood volume) or plasma loss, for example due to severe burns, trauma, or major surgery. They do not contain cells or clotting factors, but they help to maintain intravascular volume and tissue perfusion. Plasma substitutes can be divided into two main categories: crystalloids and colloids.
Crystalloid solutions contain small molecules that can easily move between intracellular and extracellular spaces. Examples include normal saline (0.9% sodium chloride) and lactated Ringer's solution. They are less expensive and have a lower risk of allergic reactions compared to colloids, but they may require larger volumes to achieve the same effect due to their rapid distribution in the body.
Colloid solutions contain larger molecules that tend to stay within the intravascular space for longer periods, thus increasing the oncotic pressure and helping to maintain fluid balance. Examples include albumin, fresh frozen plasma, and synthetic colloids such as hydroxyethyl starch (HES) and gelatin. Colloids may be more effective in restoring intravascular volume, but they carry a higher risk of allergic reactions and anaphylaxis, and some types have been associated with adverse effects such as kidney injury and coagulopathy.
The choice of plasma substitute depends on various factors, including the patient's clinical condition, the underlying cause of plasma loss, and any contraindications or potential side effects of the available products. It is important to monitor the patient's hemodynamic status, electrolyte balance, and coagulation profile during and after the administration of plasma substitutes to ensure appropriate resuscitation and avoid complications.
A gold colloid, radioactive, refers to a type of medical preparation where tiny particles of radioactive gold (usually in the form of gold-198 isotope) are suspended in a liquid medium. Gold-198 has a half-life of about 2.7 days and emits beta particles and gamma radiation.
Radioactive gold colloid is sometimes used in interventional radiology procedures for the treatment of various conditions, such as liver tumors or inflammatory diseases like arthritis. The radioactivity of the gold particles helps to deliver targeted radiation therapy to the affected area, while the small size and colloidal form allow for easy administration and distribution within the body.
It is important to note that the use of radioactive materials in medical procedures requires specialized training and equipment, and should only be performed by qualified healthcare professionals in a controlled environment.
Hydroxyethyl starch derivatives are modified starches that are used as plasma expanders in medicine. They are created by chemically treating corn, potato, or wheat starch with hydroxylethyl groups, which makes the starch more soluble and less likely to be broken down by enzymes in the body. This results in a large molecule that can remain in the bloodstream for an extended period, increasing intravascular volume and improving circulation.
These derivatives are available in different molecular weights and substitution patterns, which affect their pharmacokinetics and pharmacodynamics. They are used to treat or prevent hypovolemia (low blood volume) due to various causes such as bleeding, burns, or dehydration. Common brand names include Hetastarch, Pentastarch, and Voluven.
It's important to note that the use of hydroxyethyl starch derivatives has been associated with adverse effects, including kidney injury, coagulopathy, and pruritus (severe itching). Therefore, their use should be carefully monitored and restricted to specific clinical situations.
A bronchogenic cyst is a type of congenital cyst that develops from abnormal budding or development of the bronchial tree during fetal growth. These cysts are typically filled with mucus or fluid and can be found in the mediastinum (the area between the lungs) or within the lung tissue itself.
Bronchogenic cysts are usually asymptomatic, but they can cause symptoms if they become infected, rupture, or compress nearby structures such as airways or blood vessels. Symptoms may include cough, chest pain, difficulty breathing, and recurrent respiratory infections.
Diagnosis of bronchogenic cysts is typically made through imaging tests such as chest X-rays, CT scans, or MRI scans. Treatment usually involves surgical removal of the cyst to prevent complications.
A dermoid cyst is a type of benign (non-cancerous) growth that typically develops during embryonic development. It is a congenital condition, which means it is present at birth, although it may not become apparent until later in life. Dermoid cysts are most commonly found in the skin or the ovaries of women, but they can also occur in other areas of the body, such as the spine or the brain.
Dermoid cysts form when cells that are destined to develop into skin and its associated structures, such as hair follicles and sweat glands, become trapped during fetal development. These cells continue to grow and multiply, forming a sac-like structure that contains various types of tissue, including skin, fat, hair, and sometimes even teeth or bone.
Dermoid cysts are usually slow-growing and may not cause any symptoms unless they become infected or rupture. In some cases, they may cause pain or discomfort if they press on nearby structures. Treatment typically involves surgical removal of the cyst to prevent complications and alleviate symptoms.
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.
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Benign5
- Benign, congenital, neuroepithelial cysts that are typically filled with a viscous mucus. (uams.edu)
- Colloid carcinoma begins as a benign cyst called an intraductal papillary mucinous neoplasm (IPMN). (uclahealth.org)
- Colloid cysts (CC's) of the third ventricle are benign intra-cranial cysts that account for approximately 1% of all intra-cranial tumors. (surgicalneurologyint.com)
- Colloid cysts are benign growths with a gelatin-like consistency most commonly found within the ventricles where cerebrospinal fluid drains. (goodmancampbell.com)
- Thyroglossal duct cysts (TDC) are usually considered to be a benign embryonic malformation where the thyroglossal duct fails to obliterate after descent of the thyroid gland [3]. (bvsalud.org)
Resection of a colloid cyst2
- In 1921, Dandy accomplished the first successful resection of a colloid cyst through a transcortical-transventricular approach. (medscape.com)
- Let's review the techniques for transcortical resection of a colloid cyst using the transfrontal approach via a tubular retractor system. (neurosurgicalatlas.com)
Tumors4
- Colloid cysts represent 0.5-1.0% of intracranial tumors. (wikipedia.org)
- Colloid Cysts of the Third Ventricle comprise 1% of CNS tumors. (neurosurgerydallas.com)
- This is true for most skull base tumors - especially pituitary adenomas, meningiomas, chordomas, craniopharyngiomas, Rathke cleft cysts and malignancies in the skull base that may have been considered much too risky to treat surgically in the past. (kansashealthsystem.com)
- This can include colloid cysts, intraventricular tumors and tumors that aren't completely intraventricular but come close - pineal region or thalamic tumors, for example. (kansashealthsystem.com)
Hydrocephalus6
- The image below depicts a colloid cyst at the foramen of Monro causing hydrocephalus. (medscape.com)
- Axial CT scan that shows a colloid cyst with associated hydrocephalus. (medscape.com)
- The most common indication for surgery is hydrocephalus associated with a colloid cyst. (medscape.com)
- See Figures 3, 4 & 5 for a case of Acute Obstructive Hydrocephalus resulting from a Colloid Cyst). (neurosurgerydallas.com)
- Due to the presence of mild hydrocephalus, she under went through section of this colloid cyst. (neurosurgicalatlas.com)
- In acute obstructive hydrocephalus, as is the case with a colloid cyst obstructing the foramina of Monro, a sudden increase in intraventricular pressure can lead to rapid loss of consciousness and even death. (radiopaedia.org)
Ventricle18
- Patients who have had a colloid cyst removed from the third ventricle sometimes experience some difficulty with day‐to‐day memory. (wikipedia.org)
- Colloid cysts are nonneoplastic epithelium-lined cysts of the central nervous system that almost always arise from the anterior third ventricle roof (immediately posterior to the foramen of Monro). (medscape.com)
- however, several reports have been written about colloid cysts found in other locations, including the posterior third ventricle, the fourth ventricle, the septum, and rarely the frontal lobe, cerebellum, and pontomesencephalon. (medscape.com)
- Colloid cysts of the third ventricle responsible for sudden death. (thejns.org)
- 131 , 1991 (Fr) Achard JM, Le Gars D, Veyssier P: [Colloid cysts of the third ventricle responsible for sudden death. (thejns.org)
- The pathogenesis of cerebral symptoms in colloid cysts of the third ventricle: a clinical and pathoanatomical study. (thejns.org)
- Colloid cysts of the third ventricle with fatal outcome: a report of two cases and review of the literature. (thejns.org)
- 260 - 266 , 1997 Büttner A, Winkler PA, Eisenmenger W, et al: Colloid cysts of the third ventricle with fatal outcome: a report of two cases and review of the literature. (thejns.org)
- Patients harboring colloid cysts of the third ventricle can present with acute neurological deterioration, or the first indication of the lesion may appear when the patient suddenly dies. (thejns.org)
- MRI evaluation revealed a colloid cyst slightly toward left frontal horn of the lateral ventricle, potentially some light products within the cyst. (neurosurgicalatlas.com)
- And again the location of this relatively large cyst, in relation to the Corpus callosum and the roof of the third ventricle is demonstrated on the sagittal image. (neurosurgicalatlas.com)
- Often when you enter the ventricle, the cyst may not be even visible because the choroid plexus or other surrounding structures may be covering it. (neurosurgicalatlas.com)
- Here's the wall of the third ventricle on the left side, working through the foramenal Monro to deflate the cyst and circumferentially dissect it from the surrounding structures. (neurosurgicalatlas.com)
- So now you can see through the third ventricle easily, because of the blood products within the cyst. (neurosurgicalatlas.com)
- The cyst is extracted from the roof of the third ventricle. (neurosurgicalatlas.com)
- Niknejad HR, Samii A, Shen S, Samii M. Huge familial colloid cyst of the third ventricle: An extraordinary presentation. (surgicalneurologyint.com)
- Colloid cyst of the third ventricle is a round-shaped neoplasm that is located in the cavity of the III ventricle of the brain. (medic-journal.com)
- Anterograde amnesia with fornix damage following removal of Illrd ventricle colloid cyst. (bvsalud.org)
Symptoms5
- Colloid cyst symptoms have been associated with four variables: cyst size, cyst imaging characteristics, ventricular size, and patient age. (wikipedia.org)
- Colloid cysts can be diagnosed by symptoms presented. (wikipedia.org)
- Additional testing is required and the colloid cyst symptoms can resemble those of other diseases. (wikipedia.org)
- A more difficult clinical situation occurs when patients present with few or no symptoms and have small colloid cysts and large ventricles. (medscape.com)
- Focal symptoms are possible, corresponding to the location of the cyst. (medic-journal.com)
Lesions1
- Differential diagnosis involves branchial cleft cyst, lymphoepithelial cyst, thyroid gland lesions, ranula and lymphadenopathy (of various etiologies). (bvsalud.org)
20191
- Unspecified ovarian cysts 2016 2017 - Deleted Code 2017 - New Code 2018 2019 Non-Billable/Non-Specific Code. (takesurveys.onl)
Familial1
- The cyst sizes of all familial case reports are listed in Table 1 . (surgicalneurologyint.com)
Thyroid2
- Thyroglobulin is stored in the thyroid in follicle cysts surrounded by colloid cells. (loinc.org)
- US can be used to identify many more nonpalpable nodules, and it can depict thyroid cysts as small as 2 mm and solid nodules as small as 3 mm. (medscape.com)
Large cyst1
- This usually occurs in the setting of a large cyst that obstructs the foramen of Monro. (medscape.com)
Endoscopic removal2
- Endoscopic removal of the Colloid Cyst has the benefits of potentially being a less invasive procedure and shorter operative time. (neurosurgerydallas.com)
- Endoscopic removal of recurrent colloid cysts. (cornell.edu)
Goiter1
- US may be the only examination required in cases of hemorrhagic cyst and multinodular goiter. (medscape.com)
Tumor2
- A colloid cyst is a non-malignant tumor in the brain. (wikipedia.org)
- Patients with third-ventricular colloid cysts become symptomatic when the tumor enlarges rapidly, causing cerebrospinal fluid (CSF) obstruction, ventriculomegaly, and increased intracranial pressure. (wikipedia.org)
Asymptomatic3
- Some cysts enlarge more gradually, however, allowing the patient to accommodate the enlarging mass without disruption of CSF flow, and the patient remains asymptomatic. (wikipedia.org)
- The cyst usually presents itself as a painless, asymptomatic midline swelling below the hyoid bone. (bvsalud.org)
- The cyst usually presents itself as a painless, asymptomatic midline swelling and may cause a neck mass or a nodule, which occasionally may become infected and rarely gives rise to carcinoma [11, 13]. (bvsalud.org)
20171
- Mom had surgery on May 17, 2017 to remove a colloid cyst in her brain. (caringbridge.org)
Surgery3
- Lastly, patients who have small cysts and normal-sized ventricles are not likely to deteriorate and do not need surgery. (medscape.com)
- An early champion of minimally invasive/endoscopic surgery to remove colloid cysts, Dr. Mark Souweidane has now performed more than 100 of these surgeries and become an international leader in minimal-access colloid cyst resection. (weillcornell.org)
- This patient from Zimbabwe was suffering from Colloid Cyst and was running pillar to post to find the best neurosurgeon for the surgery. (indianneurosurgery.com)
Neurosurgical1
- In these cases, if the cyst stops growing, the patient can maintain a steady state between CSF production and absorption and may not require neurosurgical intervention. (wikipedia.org)
Left frontal1
- The left transfrontal approach was selected, since the cyst was directed more toward the left side and the left frontal horn was slightly larger. (neurosurgicalatlas.com)
Ovarian2
- Roadmap to evaluate ovarian cysts. (radiologyassistant.nl)
- What is the ICD 10 code for Colloid ovarian cyst? (takesurveys.onl)
Choroid1
- As the Cyst enlarges, it intermittently obstructs the flow of Cerebrospinal Fluid ( CSF - which is manufactured by the Choroid Plexus within the Ventricles of the Brain) at the level of the Foramen of Monro (a vital interconnecting pathway within the Brain's ventricular cavities). (neurosurgerydallas.com)
Cerebral1
- Cerebral cyst is a voluminous intracranial formation, which is a cavity filled with fluid. (medic-journal.com)
Surgical1
- Mammillary body atrophy in patients with surgical removal of colloid cysts indicates that this atrophy is partly due to a loss of temporal lobe projections in the fornix. (wikipedia.org)
Aspiration2
- [ 1 ] and the first stereotactic aspiration of a colloid cyst was performed by Bosch et al. (medscape.com)
- In contrast to "Body fld", the System "Asp" in LOINC represents the fluid withdrawn during an aspiration procedure from an abnormal collection of fluid, such as from an abscess or cyst. (loinc.org)
Brain4
- Untreated pressure caused by these cysts can result in brain herniation. (wikipedia.org)
- Various different cells have been proposed as the origin of these cysts, including the incorporation of respiratory and enteric epithelium in the normal developing Brain. (neurosurgerydallas.com)
- These fluid-filled cysts form as the brain is developing before birth and are named based on the layer in which they are located. (goodmancampbell.com)
- In fact, it's my head, and my brain, and the bright spot is a colloid cyst. (clinisys.com)
Acute1
- The goal of this study was to estimate the risk of acute deterioration in patients with colloid cysts. (thejns.org)
Fornix1
- Here is dissection of the superior capsule of the cyst from the fornix. (neurosurgicalatlas.com)
Posterior1
- Some of the chroidal vessels, maybe feeding the cyst along its posterior capsule. (neurosurgicalatlas.com)
Diagnosis1
- Colloid cyst group Thursday 17 August, 13:00 to 14:00 We know that having a colloid cyst diagnosis can feel isolating and information is often hard to find. (brainstrust.org.uk)
Occur1
- Usually, the patients are middle-aged though the cysts can occur at virtually all ages. (surgicalneurologyint.com)
Embryonic2
- In 1910, Sjovall hypothesized that colloid cysts were remnants of the paraphysis, an embryonic midline structure within the diencephalic roof immediately rostral to the telencephalic border. (medscape.com)
- One leading theory is that colloid cysts form when ectopic endodermal elements migrate into the velum interpositum during central nervous system embryonic development. (medscape.com)
Epithelium1
- The predominant cytopathological findings of TDCs are phagocytes, colloid, cholesterol crystals, and ciliated columnar epithelium. (bvsalud.org)
Examination1
- Pathological examination confirmed a colloid cyst. (bmj.com)
Involves1
- A key maneuver involves aggressive decompression of the cyst. (neurosurgicalatlas.com)
Operative1
- Post operative MRI demonstrated complete resection of the colloid cyst without any complicating features. (neurosurgicalatlas.com)
Form1
- It is here where Colloid Cysts form. (neurosurgerydallas.com)
Patients1
- A retrospective study was made of a cohort of patients with newly diagnosed colloid cysts who were recruited in The Netherlands between January 1, 1993, and December 31, 1997. (thejns.org)
Presentation1
- Infection and abscess formation are frequent complications due to a communication between the cyst and the mouth with subsequent contamination by oral flora, which is the more common presentation in adults [7, 9]. (bvsalud.org)
Fluid2
- The variable MRI signals do not correlate with the fluid density of cyst contents, although MRI is valuable in differentiating a colloid cyst from a basilar tip aneurysm. (medscape.com)
- The cyst wall is lined with a mixed array of epithelial and goblet cells secreting proteinaceous mucinous fluid and may be responsible for the increase in size of the cyst. (medscape.com)
Cases2
- Colloid cysts: experience with the management of 84 cases since the introduction of computed tomography. (thejns.org)
- 693 - 700 , 1989 Camacho A, Abernathey CD, Kelly PJ, et al: Colloid cysts: experience with the management of 84 cases since the introduction of computed tomography. (thejns.org)
Remove1
- Multiple studies have discussed how to remove a colloid cyst. (wikipedia.org)
Outcome1
- Quality of life is found to be better following endoscopic excision than microsurgery, with cysts smaller than 18 mm showing better cognitive outcome. (wikipedia.org)
Contents4
- The CT scan is an important preoperative study because the viscosity of the cyst contents correlates more closely to the radiodensity visible on a CT scan than to the density visible on MRI. (medscape.com)
- Here you can see a small ring curad evacuating the contents of the cyst. (neurosurgicalatlas.com)
- Additional dissection was necessary, inside the cyst so the relatively solid contents are removed. (neurosurgicalatlas.com)
- Further inspection reveals no residual, cyst contents or any pieces of its wall. (neurosurgicalatlas.com)