Differentiating central neurocytoma. Case report.

In 1976 a patient underwent partial resection of an intraventricular tumor that showed central neurocytoma. No other tumor pattern was observed. In 1994 this patient underwent a second operation for removal of the tumor, at which time foci of tumor were diagnosed as central neurocytoma and ganglioglioma. This is the first reported case of differentiation of central neurocytoma into ganglioglioma, a sequence of events termed differentiating central neurocytoma.