[Dedifferentiating intracerebral neuroblastoma resistant to x-ray and drug therapy -- a case report (author's transl)].

A new case of primary intracerebral neuroblastoma is reported. The patient, a 2 year old boy, was subjected to temporary successful craniotomy, postoperative irradiation and cytostatic therapy without any influence on the recurrence of the tumor. In contrast to the possible well-known maturation of neuroblastomas a dedifferentiating process occurred. The boy died 8 1/2 months after diagnosis.