Abstract
A 63-year-old woman underwent a laparoscopic-assisted partial resection for transverse colon cancer, D2 resection and laparoscopic cholecystectomy. She started to complain of nausea and vomiting on the 11th postoperative day and was diagnosed as having ileus. Abdominal CT scan revealed incarceration of the small bowel at the site of 5mm port incision. A re-operation was performed and a peritoneal defect was identified at the 5mm port site in the right lower abdomen, and part of the intestine was incarcerated into the muscle through this defect. These findings established a diagnosis of Richter's hernia caused by the enlarged peritoneal defect at the 5mm port site. This was believed to have been caused by the insertion of an 8mm multi-drain during the first operation. A 5mm port site is a rare complication, but attention should be paid to the possible occurrence of a hernia.
