LAUSR

Meckel’s diverticulum (MD), which usually occurs in the distal ileum, is the most common congenital malformation of the gastrointestinal tract [1]. MD is generally asymptomatic; however, 2%–6% of affected patients develop complications [2] such as bleeding, obstruction, or perforation. Intestinal hemorrhage is the most common complication, accounting for 30% of all complications [3]. Laparoscopic surgery is usually recommended for MD with hemorrhagic complications. Inverted MD is very rare. MD was reportedly found by double-balloon enteroscopy and surgical treatment was performed. Double-balloon enteroscopy has unique advantages in the diagnosis and treatment of MD-associated bleeding. It not only allows direct, repeated, and clear observation of the small intestine, but the scope can also enter the diverticulum for observation of the internal conditions and acquisition of biopsy specimens to clarify the diagnosis. In the present case, we used single-balloon enteroscopy to identify an inverted MD with massive hemorrhage and performed treatment via whole-layer ileum resection under enteroscopy. This method reduces both pain and the occurrence of post-operative complications such as intestinal adhesion and obstruction. It has high clinical application value and can serve as the first-choice treatment.