the most common primary brain tumors

adenoma anatomy astrocytoma benign blastoma body brain brainstem cancer cancerous cell craniopharyngioma cranium crest disease ependymoma gland glioma head health healthcare human illustration injury intracranial malignant medical medicine medulloblastoma meningioma metastasis neoplasm nerve neural neurofibromatosis neurology oligodendroglioma oncology optic pain patient pineal pituitary pnet region schwann science sheath sick skull stroke surgery tumor