title: Rapid cognitive decline in a high functioning 73-year-old man: question.
authors.forename: Marina
authors.initials: M
authors.lastname: Demyanenko
authors.forename: Sarah A
authors.initials: SA
authors.lastname: Cain
authors.forename: Jordan
authors.initials: J
authors.lastname: Jones
authors.forename: Andrew H
authors.initials: AH
authors.lastname: Kaye
mesh_terms: D000368:Aged; D001921:Brain / Q000473:pathology* / Q000503:physiopathology*; D016543:Central Nervous System Neoplasms / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000503:physiopathology; D003072:Cognition Disorders / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D003937:Diagnosis, Differential; D004569:Electroencephalography; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000503:physiopathology; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D008297:Male