Cerebellar Liponeurocytoma: Report of a Rare Entity

Cerebellar liponeurocytoma is a rare clinicopathological entity, included in the 2000 World Health Organization (WHO) classification of tumors of the central nervous system in the category of glioneuronal tumors. These are WHO Grade II, slow-growing tumors in adults with known recurrences. To date, about 70 cases of liponeurocytomas have been reported. This tumor needs to be differentiated from oligodendroglioma as well as medulloblastoma which are more common and aggressive, requiring postoperative chemoradiation. A high index of suspicion is thus advocated for the diagnosis. We present one such case of this rare entity reported in our institute. A 42-year-old female presented with a 4-month history of headache, neck pain, reduced vision, and cerebellar signs. Imaging showed a midline lesion involving the cerebellar vermis and left lobe suggestive of anaplastic ependymoma/hemangioblastoma. The final diagnosis of cerebellar liponeurocytoma was rendered on routine histopathological examination supported by immunohistochemical analysis.