Pelvic neuroblastoma.

Neuroblastoma usually presents as an upper abdominal mass arising from the adrenal gland. Recent experience with neuroblastoma of the spermatic cord, bladder and pelvis demonstrates the propensity of this tumor to arise in unusual areas. The need for unusual and unexpected masses in children to be evaluated thoroughly for neuroblastoma and for therapy to be individualized based on histological criteria, patient age and location of the tumor is demonstrated.