Mucinous cystadenoma of the pancreas in a one-year-old child

Pancreatic cystic lesion in an infant

Pancreatic cystic lesions are rare clinical entities. To the best of our knowledge, only 38 cases have been reported in the English literature in children under the age of 2 years. We present a 2-month-old infant with a cystic lesion in the head of pancreas. We reviewed the possible causes and present our dilemmas in the management of these patients.

Abdominal mucinous cystic neoplasm in a male child

Mucinous cystic neoplasms (MCNs) make up a morphologic family of similar appearing tumors arising in the ovary and various extraovarian sites, including the pancreas, hepatobiliary tract, paratesticular soft tissues, and mesentery. Other than the uncommon mucinous cystadenoma of the ovary presenting in adolescence, MCNs are rarely seen by the pediatric pathologist. The present case is a 5-year-old boy with an abdominal mass appearing to arise in the mesentery of the small intestine. Because of its unresectability, a generous biopsy was performed and disclosed a MCN with focal complex papillary architecture in the absence of appreciable cytologic atypia or invasion into the wall. Like other MCNs, this tumor had an inhibin-positive, ovarian-like stroma that was nonreactive for estrogen and progesterone receptors. Only 1 other case of a mesenteric MCN has been reported to date in a child and none in a male. The MCN of the mesentery joins other, somewhat more common cystic lesions of the omentum and mesentery presenting in childhood.