A 17-year-old girl presented with 3-4 months history of upper abdominal pain more on right side. She also had history of postprandial pain, fullness and on and off fever and generalised weakness. Physical examination revealed right hypochondriac tenderness at palpation. Detailed general and systemic examination revealed no other significant findings. The laboratory test including complete blood count, AST, ALT, alkaline phosphatase, bilirubin, random blood sugar and amylase were in normal range.She underwent ultrasound of the abdomen, which revealed a well defined, heterogenous iso-hypoechoic mass in the area of uncinate process of the pancreas and near the 3 rd part of duodenum measuring 6cm×5cmx6cm with multiple tiny cysts. A diagnosis of cystic pancreatic neoplasm was considered.