case_images: PMC9381363_01
case_images: Orthotopic and age-appropriate sized anus with surrounding sphincter (asterisk) and a perineal fistula (arrow).
case_images: 10-1055-s-0042-1750028-i210616cr-1.jpg
case_images: PMC9381363_01_10-1055-s-0042-1750028-i210616cr-1.jpg
case_images: FI210616cr-1
case_images: Examination under anesthesia and electrostimulation confirmed an orthotopic and age-appropriate sized anus with surrounding sphincter and a perineal fistula ( Fig. 1 ).
case_images: Duplicated terminal ileum with a separated mesentery leading to two ceca (arrows) and appendices (asterisks).
case_images: 10-1055-s-0042-1750028-i210616cr-2.jpg
case_images: PMC9381363_01_10-1055-s-0042-1750028-i210616cr-2.jpg
case_images: FI210616cr-2
case_images: Exploratory laparotomy revealed a duplicated terminal ileum starting 10 cm proximal to the ileocecal valve with a separated mesentery leading to two ceca and appendices ( Fig. 2 ), which joined to a completely duplicated colon with a septum and common mesentery ( Fig. 3 ).
case_images: Division of the common colonic wall using a stapler to create one lumen up to the level of the ileocaecal valve.
case_images: 10-1055-s-0042-1750028-i210616cr-4.jpg
case_images: PMC9381363_01_10-1055-s-0042-1750028-i210616cr-4.jpg
case_images: FI210616cr-4
case_images: The common colonic wall was divided using a stapler to create one lumen up to the level of the ileocaecal valve ( Fig. 4 ).
case_images: (
  A
  and B) Mucosectomy (Soave plane) of the rectal duplication leading to the perineal fistula leaving its muscular cuff in place.
case_images: 10-1055-s-0042-1750028-i210616cr-5.jpg
case_images: PMC9381363_01_10-1055-s-0042-1750028-i210616cr-5.jpg
case_images: FI210616cr-5
case_images: Fig. 5A , B ). Finally, a protective ileostomy was created.