Subdural hygroma

A subdural hygroma is a subdural body of cerebrospinal fluid (CSF), without blood. Most subdural hygromas are believed to be derived from chronic subdural hematomas. It is commonly seen in elderly patients after minor trauma but can be seen in children after an infection. One of the common causes of subdural hygroma is a sudden […]
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Lateral medullary syndrome

Lateral medullary syndrome (also called Wallenberg syndrome and posterior inferior cerebellar artery syndrome) is a disease in which the patient has a constellation of neurologic symptoms due to injury to the lateral part of the medulla in the brain, resulting in tissue ischemia and necrosis. Number of View: 4996
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Leukoaraiosis

Leukoaraiosis describes the nonspecific changes in the cerebral white matter frequently seen on CT and MRI in aged individuals. The term leukoaraiosis was first coined in 1986 as a descriptive term for rarefaction (“araiosis”) of the white matter, showing up as decreased density on CT and increased signal intensity on T2/FLAIR sequences performed as part […]
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Cysticercosis

Cysticercosis refers to tissue infection after exposure to eggs of Taenia solium, the pork tapeworm. The disease is spread via the fecal-oral route through contaminated food and water, and is primarily a food borne disease. After ingestion the eggs pass through the lumen of the intestine into the tissues and migrate preferentially to the brain […]
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Dawson’s fingers

“Dawson’s Fingers” is the name for the multiple sclerosis lesions around the ventricle-based brain veins of Multiple Sclerosis patients. Number of View: 6540
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Tolosa-Hunt syndrome

Tolosa-Hunt syndrome (THS) is a rare disorder characterized by severe and unilateral headaches with extraocular palsies, usually involving the third, fourth, fifth, and sixth cranial nerves, and pain around the sides and back of the eye, along with weakness and paralysis (ophthalmoplegia) of certain eye muscles. Number of View: 4780
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Chronic focal encephalitis

Rasmussen’s encephalitis, also known as chronic focal encephalitis (CFE), is a rare inflammatory neurological disorder, characterized by frequent and severe seizures, loss of motor skills and speech, hemiparesis (paralysis on one side of the body), encephalitis (inflammation of the brain), and dementia. Number of View: 3971
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Hypothalamic Nuclei

Symbols: AC: anterior commissure PO: preoptic nucleus SC: suprachiasmatic nucleus OC: optic chiasma TC: tuber cinereum AP: anterior pituitary IN: infundibulum PP: posterior pituitary ME: median eminence AH: anterior hypothalamic nucleus SO: supraoptic nucleus TH: thalamus PV: paraventricular nucleus (not to be confused with periventricular nucleus, which is not shown) DM: dorsomedial nucleus VM: ventromedial […]
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Tornwaldt cyst

A Tornwaldt cyst is a benign cyst located in the upper posterior nasopharynx. It can be seen on computed tomography (CT) or magnetic resonance imaging (MRI) of the head as a well-circumscribed round mass lying in the midline. Number of View: 4416
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Neurodegeneration

Neurodegeneration is the umbrella term for the progressive loss of structure or function of neurons, including death of neurons. Many neurodegenerative diseases including Parkinson’s, Alzheimer’s, and Huntington’s occur as a result of neurodegenerative processes. As research progresses, many similarities appear which relate these diseases to one another on a sub-cellular level. Number of View: 3656
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