title: Duodenal polyp or aneurysm? Possible hazard of endoscopic polypectomy.
mesh_terms: D000783:Aneurysm / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D004386:Duodenum / Q000098:blood supply; D004724:Endoscopy; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010179:Pancreas / Q000098:blood supply