title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 43--1992. A 70-year-old man with progressive muscle weakness and agitated depression.
mesh_terms: D000368:Aged; D001921:Brain / Q000473:pathology; D006801:Humans; D008297:Male; D016472:Motor Neuron Disease / Q000473:pathology*; D009046:Motor Neurons / Q000473:pathology; D009134:Muscular Atrophy, Spinal / Q000473:pathology; D013116:Spinal Cord / Q000473:pathology