Ulcer cancer of the duodenum.
D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D004379:Duodenal Neoplasms / Q000175:diagnosis / Q000209:etiology*; D004381:Duodenal Ulcer / Q000150:complications* / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000473:pathology