Abstract
A case of necrotic Meckel's diverticulum due to torsion at its neck, resulting in peritonitis, is reported. A 35-year-old man was admitted with the complaint of severe lower abdominal pain. Emergency laparotomy was performed under the diagnosis of acute peritonitis. Meckel's diverticulum, 70× 40× 30 mm in size, was found on the ileum about 50cm proximal to Bauhin's valve. It was twisted about 360° counterclockwise at its neck and necrotized. The Meckel's diverticulum was resected. Torsion is a rare complication of Meckel's diverticulum, and we found reports of only 10 other cases in Japan. Those diverticula were also large, greater than 6cm in length, and had a narrow neck. It is reported that large size and a narrow neck of the diverticulum may be an anatomical factor in torsion of Meckel's diverticulum. In our case, we thought that the peritonitis was the result of torsion of Meckel's diverticulum with the same factor.
