Abstract

Appendiceal intussusception is a rare disease entity and appendiceal mucocele is one of the causes of this disease. Although computed tomography, ultrasonography, barium enema and colonoscopy can be performed to make a preoperative diagnosis, only a few cases of appendiceal mucocele-induced intussusception have been precisely diagnosed by these diaggnostic tools. Most of all, few such cases have been confirmed by colonoscopic examination. Colonoscopic examination has a supplementary role for the differential diagnosis of acute or chronic appendicitis, tumor or abscess in the ascending colon and cecum that is caused by appendiceal intussusception. We report here on a case of intussusception that was caused by an appendiceal mucocele, and this showed a target appearing structure in the hepatic flexure and a cystic mass inside the intussusceptive lumen on abdominal CT, and a huge mass was discovered on the colonoscopic examination. (Korean J Gastrointest Endosc 2009;38:161-165)

• Keywords: Mucocele, Appendix, Intussusception, Huge mass