Ileal Duplication

  • Etiology: abnormal budding of gastrointestinal tract lined with GI epithelium, may communicate with enteric lumen proper
  • US: cystic lesion with echogenic rim sign = enteric signature / gut signature = hyperechoic inner layer of cyst representing bowel mucosa
  • Tc-pertechnetate scan: may contain gastric mucosa so may be visible
  • Clinical: commonest location of enteric duplication (35%)

Radiology Cases of Ileal Duplication

US of ileal duplication cyst
Transverse (above) and sagittal (below) US of the abdomen shows a cystic abdominal mass with an echogenic central rim.

Surgery Cases of Ileal Duplication

Surgical image of ileal duplication
Surgical images show the round mass arising from the mesenteric border of the ileum.