title: Pathologic quiz case: a 50-year-old man with progressive worsening of neurological symptoms.
authors.affiliation: Department of Neurology, Cleveland Clinic Florida, Weston, USA.
authors.forename: Tarannum S
authors.initials: TS
authors.lastname: Khan
authors.forename: Richard A
authors.initials: RA
authors.lastname: Prayson
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000175:diagnosis* / Q000473:pathology; D018450:Disease Progression; D006801:Humans; D008297:Male; D008875:Middle Aged