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Nystagmus as seen in a case of ocular albinism. The cause of pathological nystagmus may be congenital, idiopathic, or secondary to a pre-existing neurological disorder.It also may be induced temporarily by disorientation (such as on roller coaster rides or when a person has been spinning in circles) or by some drugs (alcohol, lidocaine, and other central nervous system depressants, inhalant ...
Oculogyric crisis ( OGC) is a rare sudden, paroxysmal, dystonic reaction that may manifest in response to specific drugs, particularly neuroleptics, or medical conditions, such as movement disorders. This neurological phenomenon is characterized by a sustained dystonic, conjugate, involuntary upward deviation of both eyes lasting seconds to hours.
Constitutional Symptoms. Unexplained weight loss: Weight loss that is unintended and not explained by diet, exercise or other illness may be a warning sign of many types of cancer. Unexplained pain: Pain that persists, has no clear cause, and does not respond to treatment may be a warning sign of many types of cancers.
Parinaud's syndrome is a constellation of neurological signs indicating injury to the dorsal midbrain. More specifically, compression of the vertical gaze center at the rostral interstitial nucleus of medial longitudinal fasciculus (riMLF). It is a group of abnormalities of eye movement and pupil dysfunction and is named for Henri Parinaud [ 6 ...
Wernicke encephalopathy ( WE ), also Wernicke's encephalopathy, [ 1] or wet brain is the presence of neurological symptoms caused by biochemical lesions of the central nervous system after exhaustion of B-vitamin reserves, in particular thiamine (vitamin B 1 ). [ 2] The condition is part of a larger group of thiamine deficiency disorders that ...
The detached retina was caused by a cancerous tumor that had wrapped around Hensley’s optic nerve. She was diagnosed with ocular melanoma that began when the freckle in the back of her eye ...
Nearly half of cancer deaths could be prevented with lifestyle changes, new research finds. An estimated 40% of all cancer cases and 44% of all cancer deaths in adults over 30 years old in the ...
Gerstmann–Sträussler–Scheinker syndrome. A person with inherited prion disease has cerebellar atrophy. This is quite typical of GSS. difficulty speaking, developing dementia, memory loss, vision loss. Gerstmann–Sträussler–Scheinker syndrome ( GSS) is an extremely rare, always fatal (due to it being caused by prions) neurodegenerative ...