Rectal Duplication

  • Etiology: abnormal budding of gastrointestinal tract lined with GI epithelium, may communicate with enteric lumen proper
  • Imaging: can be cystic or tubular
  • Clinical: 15% of GI duplications (colonic), can present as presacral mass

Cases of Rectal Duplication

Barium enema and MRI of rectal duplication
AP and lateral images from a barium enema show an intraluminal lesion in the rectum. Axial and sagittal T2 MRI shows a cystic mass anterior to the rectum.