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Robert Lustig, M.D. of Penn Medicine breaks down the four most common brain tumors: metastatic, meningioma, glioblastoma and astrocytoma.
A brain tumor diagnosis is scary, but not all tumors are malignant. Read these facts about meningioma, the most common brain tumor.
Meningiomas are the most common benign intracranial tumors, comprising 10 to 15 percent of all brain neoplasms, although a very small percentage are malignant. These tumors originate from the meninges , the membrane-like structures that surround the brain and spinal cord.
Embryonal tumors begin in cells that are left over from fetal development. The cells, called embryonal cells, stay in the brain after birth. Embryonal tumors are malignant brain tumors that happen most often in babies and young children. The most common type of embryonal tumor is medulloblastoma.
Intracranial tumors may involve the brain or other structures (eg, cranial nerves, meninges). The tumors usually develop during early or middle adulthood but may develop at any age; they are becoming more common among older adults.
The most serious type of brain tumor, glioblastoma, is becoming more common among people who are as the general population ages. How common are primary brain tumors? Primary brain tumors (tumors that originate in your brain) are uncommon.
Meningioma is the most common primary brain tumor, accounting for more than 30% of all brain tumors. Meningiomas originate in the meninges, the outer three layers of tissue that cover and protect the brain just under the skull.