Design of the skin incisions, intraoperative photograph, and schematic diagram. (a) The design of the skin incisions. Laparoscope-assisted surgery was performed with four port, and the umbilical port was used for minilaparotomy with a zigzag skin incision. (b) An intraoperative photograph. The ileal duplication (arrow) was deforming the mesenteric side of the wall of the distal ileum. (c) A schematic diagram of the intraoperative findings. The exicision line is shown with a blue dotted line.