Role of intra-operative squash cytology in rosette-forming glioneuronal tumor of the fourth ventricle: a case report

Abstract

Rosette-forming glioneuronal tumor (RGNT) of the 4th ventricle is a newly described WHO grade I brain tumor included in recent WHO classification of CNS tumors. It is a biphasic tumor thought to originate from pluripotent progenitor cells of subependymal plate. Intra-operative diagnosis plays an important role, as complete surgical excision is the treatment of choice. We are reporting a case of RGNT in a 19 years-old young male emphasizing the intra-operative pathological pointers and their role in accurate diagnosis for the suitable surgical intervention.

Keywords:

• Rosette-forming glioneuronal tumor
• IVth ventricle
• WHO classification of CNS tumors
• pluripotent progenitor cells
• squash cytology

Disclosure statement

No potential conflict of interest was reported by the authors.

Finding

None.