title: Abdominal pain, arthritis, purpura, and malabsorption in a 61-year-old man.
mesh_terms: D001168:Arthritis / Q000175:diagnosis; D003937:Diagnosis, Differential; D004064:Digestive System / Q000000981:diagnostic imaging; D006801:Humans; D008286:Malabsorption Syndromes / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis; D011693:Purpura / Q000175:diagnosis; D011859:Radiography; D013029:Space-Time Clustering; D014385:Tuberculosis, Gastrointestinal / Q000175:diagnosis; D008061:Whipple Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology