Acute retroperitoneal hemorrhage and shock as presenting signs of neuroblastoma in an infant.

Adrenal hemorrhage after the neonatal period is rare. It most often occurs with coagulation disorders or child abuse. Spontaneous bleeding within an adrenal neuroblastoma has been described, but acute massive hemorrhage is exceptional. We describe a case of neuroblastoma of the adrenal gland presenting with acute life-threatening abdominal hemorrhage.