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Intrauterine intussusception with a leading point of Meckel's diverticulum is a rare cause of ileal atresia, which may cause bowel obstruction and perforation. We report such a case complicated by meconium peritonitis. The fetal ultrasonogram revealed ascites, dilated bowel loops and intra-abdominal calcification at a gestational age of 30 weeks. The patient was delivered at 37 weeks and laparotomy was performed to manage the intestinal obstruction. The operative findings showed that Meckel's diverticulum had induced intussusception associated with the ileal atresia with meconium peritonitis. The ileum was resected with end-to-end anastomosis. The postoperative course was uneventful. In this patient, ascites and intraperitoneal calcification were caused by ileal atresia, which may have been induced by intrauterine intussusception.