title: Gastroduodenal involvement in Crohn's disease.
mesh_terms: D000328:Adult; D003424:Crohn Disease / Q000150:complications* / Q000000981:diagnostic imaging; D004381:Duodenal Ulcer / Q000000981:diagnostic imaging / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011707:Pyloric Stenosis / Q000000981:diagnostic imaging / Q000209:etiology; D011859:Radiography; D013276:Stomach Ulcer / Q000000981:diagnostic imaging / Q000209:etiology*