Newborn with vomiting and a palpable abdominal mass

Surgical image of duodenal duplication
Surgical image shows a cystic mass attached to the inner surface of the C-loop of the duodenum from just distal to the pylorus to slightly proximal to the region of the ampulla of Vater. The distal antrum is visible in the upper left corner of the incision and the gall bladder is visible in the right corner of the incision between the liver and the mass.

The diagnosis was duodenal duplication.