Background: Meckel’s diverticulum is the most commonly encountered congenital anomaly of the small
intestine, occurring in approximately 2 % of the population. While most cases of Meckel’s diverticulum are asymptomatic, complications such as perforation, hemorrhage from peptic ulceration, intussusceptions, volvulus or intestinal obstruction are associated life-threating disease states. Intestinal obstruction is the most common complication and mesodiveticular band is a rare cause of it.
Case Report: 66 years old man was taken to operation with the diagnosis of acute abdomen. After laparotomy
we had seen a band tethering Meckel’s diverticulum to the ileal mesentery. Internal herniation of small bowel through that band was observed. After cutting the band we resected the segment of small bowel bearing Meckel’s diverticulum and anastomosed.
Conclusions: The more common presentations of Meckel’s diverticulums are intestinal obstruction
due to inflammation, bands, internal herniation, intussusceptions, volvulus, incarceration of the diverticulum in Littre’s hernia or tumors originating in the diverticulum. When a fibrineous band found at laparotomy, it should be excised because of risk of internal herniation and volvulus.

Keywords: Meckel’s diverticulum, internal herniation, mesodiverticular band