title: Unusual lesions of the duodenum.
mesh_terms: D002276:Carcinoid Tumor / Q000175:diagnosis; D004378:Duodenal Diseases / Q000175:diagnosis* / Q000601:surgery; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis; D007889:Leiomyoma / Q000175:diagnosis; D008202:Lymphangioma / Q000175:diagnosis; D008223:Lymphoma / Q000175:diagnosis; D012208:Rhabdomyosarcoma / Q000175:diagnosis