Allopurinol toxicity masquerading as malignancy.
D000368:Aged; D000493:Allopurinol / Q000627:therapeutic use / Q000633:toxicity*; D003937:Diagnosis, Differential; D006073:Gout / Q000188:drug therapy; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000175:diagnosis*; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D014657:Vasculitis / Q000139:chemically induced*
D000493:Allopurinol