A Case Report : Duplication of the Colon, Which Looked Like an Appendix, Displaying Penetration and Perforation

Abstract

A 51–year–old man presented with acute pain from the right lower abdomen. A CT scan showed the entire appendix was swollen and perforated, so we diagnosed an acute perforated appendicitis and performed an emergency operation. We removed a portion of the intestine looked like an appendix, which was penetrated and perforated. We identified it as the colon by pathological examination. The true appendix, which was atrophied, existed in the mesenterium mesentery. So we diagnosed it as duplication of the colon. There are few cases of duplication of the colon. We experienced a case which demonstrated both penetration and perforation. We have to be careful when operating for appendicitis.