Benign and malignant astrocytomas that arise from astrocytes in the cerebellum. More than 80% of childhood cerebellar astrocytomas are pilocytic astrocytomas which have a favorable prognosis. The remainder are composed of diffuse or fibrillary subtypes with malignant astrocytomas occurring only rarely in the cerebellum during childhood. The disease is Monarch Disease Ontology id MONDO_0003842 (childhood cerebellar astrocytic neoplasm). Also known as: cerebellum childhood astrocytic tumor, cerebellum childhood astrocytic tumour, cerebellum juvenile astrocytoma, childhood astrocytic tumor of cerebellum, childhood astrocytic tumour of cerebellum, childhood astrocytoma of cerebellum, childhood astrocytoma of the cerebellum, childhood cerebellar astrocytoma.