title: Radiologic diagnosis of Crohn disease (with emphasis on its early manifestations).
abstract: Crohn disease can affect any part of the gastrointestinal tract. The early manifestations of the disease are readily recognizable in the colon if double-contrast technique is employed. Small bowel and gastroduodenal involvement in the early stages have been less frequently identified, but enteroclysis and double-contrast UGI examination have yielded encouraging results. There is some evidence that failure to utilize the double-contrast barium enema and enteroclysis contributes to delay in diagnosis of Crohn disease. Use of these more sophisticated techniques is encouraged. As follow-up radiography in Crohn disease appears less indicated than previously considered, it is particularly important that initial assessment employs the most sensitive and accurate radiographic techniques available.
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D003092:Colitis / Q000000981:diagnostic imaging; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D003424:Crohn Disease / Q000175:diagnosis / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D007417:Intestinal Polyps / Q000000981:diagnostic imaging; D007421:Intestine, Small / Q000000981:diagnostic imaging; D011859:Radiography; D013281:Stomatitis, Aphthous / Q000000981:diagnostic imaging; D013997:Time Factors
chemical_list: D001466:Barium Sulfate