We present a case of a 13-year-old boy with a left-sided abdominal mass whi
ch proved to be a papillary cystic neoplasm of the pancreas. This low-grade
malignant lesion of young patients is very rare, and exceedingly rare in m
ales. The prognosis following resection of this tumor is good. We present t
he ultrasound and computed tomographic picture of this lesion as well as th
e gross and microscopic pathology.