• H Funato, N Inoshita, R Okeda, S Yamamoto, and M Aoyagi.
• Department of Neuropathology, Medical Research Institute, Tokyo Medical and Dental University, Japan.
• Acta Neuropathol. 1997 Jul 1;94(1):95-8.

AbstractRecently cases of ganglioneurocytoma and cerebral neurocytoma, very rare variants of central neurocytoma, have been reported. The former is characterized by differentiation toward ganglion cells and the latter by extraventricular origin in the cerebrum, but their existence as distinct clinicopathological entities, is controversial. We report an unusual case of neurocytoma, which arose extraventricularly from the frontal lobe, formed a large cystic lesion and showed ganglioid differentiation, in a 11-year-old girl. Following subtotal tumor resection, she showed a satisfactory clinical course and no evidence of recurrence. This is a very rare case of central neurocytoma-like tumor outside the ventricular system and also of ganglioneurocytoma. This case may provide some insight into the tumorigenesis and widen the clinicopathological concept of neurocytoma.

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