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Cystic changes in the white matter in a fast spin echo inversion recovery sequence. (Contributed by Dr. Raphael Schiffmann.)
Neuropharmacology & Neurotherapeutics
Aug. 30, 2020
Behavioral & Cognitive Disorders
Alzheimer disease (AD) is a neurodegenerative disease that causes dementia, most often starting with memory loss. Its hallmark microscopic features are neurofibrillary tangles and amyloid plaques. Other symptoms may include anomia, visuospatial deficits, executive dysfunction, apathy, depression, and agitation.
Feb. 19, 2020
Childhood Degenerative & Metabolic Disorders
Sep. 06, 2020
Tremor, the most common of all the movement disorders, is defined as an involuntary, rhythmic oscillation of a functional body region produced by alternating or synchronous contractions of reciprocally innervated agonist and antagonist muscles. Two subtypes of essential tremor pathology have been identified: a primarily cerebellar variant with Bergmann gliosis and Purkinje cell torpedoes, and a Lewy body variant.
May. 28, 2021
Neuro-Ophthalmology & Neuro-Otology
Jun. 25, 2021
Epilepsy & Seizures
Jun. 15, 2021
Patients with polymyositis commonly present with a myopathy characterized by proximal and often symmetric muscle weakness manifested as difficulty performing tasks requiring the use of proximal muscles. Polymyositis has no unique clinical features, and its diagnosis is one of exclusion. Most patients described as having polymyositis actually have another disease—either inclusion body myositis, necrotizing autoimmune myositis, or antisynthetase syndrome.
May. 03, 2021
Jul. 17, 2020