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©2013 UpToDate ® Print Email Endoscopic image of an appendiceal carcinoid The patient was a 42-year-old woman who underwent colonoscopy because of an episode of ischemic colitis of the descending colon to rule out underlying IBD or residual injury. There was no residual colitis, but the appendiceal orifice was characterized by a submucosal yellowish mass which was firm when pushed on with the closed biopsy forceps. Biopsies obtained with the forcep showed a carcinoid tumor. CT scan showed no lesions, although the appendix did not fill with contrast. Courtesy of Eric D. Libby, MD.