brain cancer concept. primary brain tumors types. malignant cells develop

anatomy astrocyte astrocytoma benign biology body brain brainstem cancer cancerous care cerebellum cerebral cerebrum diagram disease fossa gland glioblastoma glioma head health human illustration malignant medical medicine metastasis nerve nervous neurology organ patient pituitary posterior science spinal tissue tumor primary types cell part oligodendroglioma ependymoma meningioma pineocytoma schwannoma adenoma craniopharyngioma