MELENA DUE TO ADENOMA OF THE AMPULLA OF VATER.
D000236:Adenoma; D014670:Ampulla of Vater; D008551:Melena; D010336:Pathology; D011859:Radiography; D013514:Surgical Procedures, Operative
ADENOMA; MELENA; PATHOLOGY; RADIOGRAPHY; SURGERY, OPERATIVE; VATER'S AMPULLA