Intracerebral neuroblastoma. Report of a case with neuronal maturation and long survival.

A case of primary intracerebral neuroblastoma with long survival is reported. The initial biopsy at the age of 3 years showed a primitive, poorly differentiated tumour. Nine years later, the recurrent tumour examined by light and electron microscopy had the appearances of a cerebral neuroblastoma with many mature neurons and occasional abnormal astrocytic elements.