title: "Brunneroma": hamartoma or tumor?
abstract: Clinically relevant "tumors" of duodenal glands (Brunner's glands) are uncommon. We present a patient suffering from an exceptionally large tumor of the pars descendens of the duodenum. The tumor remained undetected at endoscopy and is of interest because of its localization, size and its presumable production of urogastrone (human epidermal growth factor). "Brunneromas" are probably hamartomas rather than true neoplasias.
mesh_terms: D000328:Adult; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D004724:Endoscopy; D004815:Epidermal Growth Factor / Q000378:metabolism; D006222:Hamartoma / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D006651:Histocytochemistry; D006801:Humans; D007158:Immunologic Techniques; D007413:Intestinal Mucosa / Q000473:pathology; D008297:Male
chemical_list: D004815:Epidermal Growth Factor