Malignant Cerebellar Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** Primary and secondary (metastatic) malignant tumors that occur in the cerebellum. Histologic types include medulloblastomas, high grade (WHO Stage III or IV) cerebellar astrocytomas, lymphomas, gangliogliomas, gliosarcomas, and several other subtypes. The most frequent malignant cerebellar neoplasm of childhood is medulloblastoma. In adults, metastases from other sites are relatively common. Clinical features include ataxia, headache, nausea, dizziness, nystagmus, diplopia, papilledema, etc.

**Synonyms:** - Cancer of Cerebellum - Cancer of the Cerebellum - Cerebellar Cancer - Cerebellar Neoplasm, Malignant - Cerebellar Tumor, Malignant - Malignant Cerebellar Neoplasms - Malignant Cerebellar Tumor - Malignant Neoplasm of Cerebellum - Malignant Neoplasm of the Cerebellum - Malignant Tumor of Cerebellum - Malignant Tumor of the Cerebellum - Malignant neoplasm of cerebellum