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Human cases of western equine encephalitis from 1964 to 2010. (From: Centers for Disease Control and Prevention.)
Aug. 18, 2020
Epilepsy & Seizures
Myoclonic seizures are sudden, brief, involuntary, single or multiple jerks that are isolated or rapidly repetitive and are due to abnormal excessive or synchronous neuronal activity in the brain. They can be positive or negative, spontaneous or evoked, generalized or focal, and cortical or thalamocortical, and represent clinical manifestations of numerous epileptic syndromes of different etiology.
Aug. 18, 2021
Medulloblastoma is the most common malignant childhood brain tumor. Arising most commonly from the area of the cerebellar vermis, medulloblastoma causes neurologic symptoms by filling the fourth ventricle and blocking cerebrospinal fluid egress or infiltrating cerebellar tissue. Approximately one third of patients have evidence of leptomeningeal spread at the time of diagnosis.
Apr. 20, 2020
Neuro-Ophthalmology & Neuro-Otology
Nystagmus refers to rhythmic involuntary oscillations of one or both eyes. Visual loss or ophthalmoparesis may be present. It may be physiologic or pathologic, and congenital or acquired.
Feb. 13, 2020
Prader-Willi syndrome is a sporadic condition characterized by neonatal hypotonia, hypogonadism, obesity, intellectual disability, small hands and feet, and characteristic facies. It results from lack of function in one or more paternally inherited genes located at 15q11-q13, either as a result of deletion of the paternal copy or due to maternal uniparental disomy. Treatment of obesity in this condition is imperative.
May. 05, 2021
Behavioral & Cognitive Disorders
A history of traumatic brain injury is the only known risk factor for chronic traumatic encephalopathy, which includes a progressive form of dementia that can begin years after the last reported head injury. Mood and behavioral changes, cognitive difficulties, and motor dysfunction can also be present.
Feb. 04, 2020
Headache & Pain
Oct. 16, 2020
Spinal subdural empyema is a rare infection that may rapidly produce spinal cord infarction and necrosis. Although the spinal subdural empyema usually
May. 31, 2021