anaplastic brain tumoranaplastic astrocytoma of brainbrain astrocytomaastrocytoma canceranaplastic astrocytomapilocytic astrocytoma canceranaplastic astrocytoma glioblastomaanaplastic astrocytoma gliomamalignant anaplastic astrocytomaanaplastic astrocytoma prognosisanaplastic pilocytic astrocytomarecurrent anaplastic astrocytoma