title: Diarrhea and weight loss in a 65-year-old man.
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000175:diagnosis / Q000473:pathology; D002908:Chronic Disease; D003937:Diagnosis, Differential; D003967:Diarrhea / Q000175:diagnosis / Q000473:pathology*; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D008297:Male; D015431:Weight Loss