title: Tumor of the ileocecal region: differentiation from Crohn's disease.
abstract: Three cases of ileocecal tumor are presented with radiological criteria that distinguish this entity from regional enteritis. All three cases demonstrated two important radiological features of tumor: amputation of mucosal folds on the medial aspect of the cecum and an abrupt demarcation between the stenotic tumor-involved terminal ileum and normal ileum. Three additional radiological features that characterize tumor and are inconsistent with regional enteritis were also noted: tethering and pleating of ileal folds; sharp angulation of the involved ileum; and a lobulated squared appearance of the ileocecal valve. It is essential that careful radiological studies of the cecum and ileum be performed in order to make these important distinctions.
mesh_terms: D000368:Aged; D002430:Cecal Neoplasms / Q000000981:diagnostic imaging*; D003251:Constriction, Pathologic; D003424:Crohn Disease / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011859:Radiography