With a presumptive diagnosis of mucinous cystadenoma / cystadenocarcinoma, the patient underwent abdominal exploration for a possible Whipple procedure (pancreaticoduodenectomy). The abdomen was opened through a chevron incision. The cystic mass was palpable in the head of the pancreas. Exploration revealed no evidence of metastatic disease. No further biopsy of the lesion was done prior to beginning the evaluation of technical resectability.
A Kocher maneuver was performed. The peritoneal reflection on the convex side of the C-loop was incised and the duodenum and pancreatic head were bluntly mobilized medially off Gerota's fascia and the inferior vena cava.
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