Pure motor hemiplegia due to pyramidal infarction.
A 77-year-old man suddenly developed left hemiplegia without sensory impairment, visual or speech difficulties, loss of consciousness, or ataxia. He died one month later of pulmonary embolism, and a cystic infarction in the right medullary pyramid was the only lesion in the corticospinal system.
D000368:Aged; D002531:Cerebellum / Q000473:pathology; D006429:Hemiplegia / Q000209:etiology*; D006801:Humans; D007238:Infarction / Q000150:complications*; D008297:Male; D011712:Pyramidal Tracts / Q000098:blood supply* / Q000473:pathology