NCIt definition : A rare malignant epithelial neoplasm arising from the pancreas. The vast majority
of cases occur during childhood. It is characterized by acinar differentiation, the
formation of squamoid corpuscles, and the formation of stromal bands. Patients may
present with an abdominal mass. Symptoms include pain, weight loss, and diarrhea.
It may metastasize to lymph nodes, liver, and distant anatomic sites. Children who
do not have metastatic disease at the time of diagnosis usually have a favorable clinical
outcome when treated with a combination of surgery and chemotherapy. However, children
with metastatic disease at presentation or adult patients usually have a poor prognosis.;