Incisional bladder hernia following appendectomy: report of a case.

We herein report the case of a 68-year-old male who presented with a few years' history of swelling at the scar of an appendectomy, which he had undergone nearly 40 years earlier, and which was associated with radiating pain towards the penis when he pushed on the swelling. The scar was located in the right lower quadrant of the abdomen. Abdominal sonography and a computed tomography (CT) scan demonstrated the presence of an incisional bladder hernia, and surgery was performed. The herniated bladder was successfully replaced into the preperitoneal space, and the orifice was covered with a polypropylene mesh. Most bladder hernias develop in the inguinal and/or femoral region, and an incisional bladder hernia is extremely rare, especially after abdominal surgery. To our knowledge, this is the fourth report of an incisional bladder hernia following abdominal surgery.