[Incarcerated scar hernia in an adjacent channel after laparoscopic cholecystectomy--a rare complication?]

The rare case of a postoperatively incarcerated cicatricial hernia in an auxiliary instrument channel after laparoscopic cholecystectomy is reported. To avoid such a complication one should: 1. Oblique insertion through the abdominal wall of all operation trocars. 2. Placing the lateral auxiliary instrument channel through the straight abdominal muscle under consideration of the epigastric vessels instead of going through the white line.