MONDO_0003171 (pineal gland astrocytoma) is a astrocytoma that involves the pineal body. Also known as: astrocytoma (excluding glioblastoma) of pineal body, astrocytoma of pineal gland, astrocytoma of the pineal gland, pineal astrocytic tumor, pineal astrocytic tumour, pineal astrocytoma, pineal body astrocytoma, pineal body astrocytoma (excluding glioblastoma).