cerebellar neoplasm (MONDO_0002913) is a benign or malignant (primary or metastatic) tumor involving the cerebellum. -- 2003. Also known as: cerebellar tumor, cerebellar tumour, cerebellum neoplasm, cerebellum neoplasm (disease), cerebellum tumor, cerebellum tumour, neoplasm of cerebellum, neoplasm of the cerebellum.