Abstract
A 46-year-old man was admitted to our hospital's emergency department for rapid lower abdominal pain. Computed tomography (CT) showed localized small intestinal dilation at the dorsal of the mesocolon sigmoideum. We diagnosed the condition as ileus due to internal hernia involving the sigmoid mesocolon, and an emergency operation was performed. Intraabdominal reference with a laparoscope showed the incarcerated small intestine in a defect of the left lobe of the mesocolon sigmoideum, with impeded blood flow. After the incarcerated small intestine was reduced, the hernia orifice was sutured and closed. The incarcerated small intestine resection and functional end to end anastomosis was performed via a small laparotomy at the umbilicus. The postoperative course was uneventful. Though internal hernia involving the sigmoid mesocolon is one of the rare diseases encountered as an abdominal emergency, laparoscopic surgery might help in ensuring increased episodes of an uneventful course of treatment.
