Abstract
A 43-year-old man was admitted to our department because of epigastric abdominal pain. CT showed intraperitoneal hemorrhage, and possible active intestinal hemorrhage. Emergency surgery was performed, and the patient was given a diagnosis of Meckel diverticulum with serosal bleeding. Partial resection of the ileum, including the lesion, was performed. Although no ectopic mucosa or tumor was detected in the pathological specimen, diverticulum within Meckel diverticulum was noted. We believe that damage to the subserosal vessels, resulting from increased pressure inside the diverticulum, caused the intraperitoneal hemorrhage. This is a rare case presenting an intraperitoneal hemorrhage in the absence of tumor or perforation. In addition to this case, we review similar cases previously reported in the literature.