Duplication cyst

Case contributed by Dr Jane McEniery


Vomiting, abdominal pain.

Patient Data

Age: 10 month
Gender: Male
  • nasogastric tube, tip in the stomach
  • distended loops of bowel in the central abdomen with paucity of distal gas
  • no pneumatosis intestinalis, portal venous gas or free gas
  • lung bases clear
  • no osseous abnormality

The overall appearances are most suggestive of a distal obstruction, favoring distal small bowel.


Abdominal ultrasound demonstrates:

  • small volume free fluid
  • modestly distended small bowel loops
  • intussussception with dimensions ~2cm diameter suggesting it is small bowel rather than ileocolic
  • a rounded cyst acting as pathological lead point with no internal vascularity and a bowel wall signature indicating an enteric duplication cyst

Case Discussion

At surgery, an ileoileal intussusception was reduced and a duplication cyst acting as pathological lead point was excised. The differential for this appearance includes a Meckel diverticulum. 

Case contributed by Dr Tom Hess.

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Case information

rID: 67830
Published: 27th Apr 2019
Last edited: 14th Aug 2019
System: Paediatrics
Inclusion in quiz mode: Included

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