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Cerebellar liponeurocytoma is a rare tumor recently included by World Health Organization in the classification of brain tumors as a separate clinicopathological entity separate from medulloblastoma. However, because of the rarity of the tumor, the natural history of the tumor is still not yet been defined. We report a patient with cerebellar liponeurocytoma with unusual clinical and pathological aggressive features. This patient suggests the possible existence of different histological grades of liponeurocytoma and its possible progression to a malignant grade. [ABSTRACT FROM AUTHOR]