Glioblastoma is a common primary brain tumor that starts within the brain and quickly spreads throughout the brain. This aggressive type of cancerous tumor arises from the cells that support the neurons within the brain. While it can be located anywhere in the brain, it is commonly found in the cerebral hemisphere near the frontal and temporal lobes. The blood vessels in this area fuel the growth and cell reproduction of the tumor. Although there is a minor genetic link to glioblastomas, the overall cause is unknown. Glioblastomas can affect adults at any age, but they occur mostly in adults in their fifties and sixties and affect slightly more men than women. Our neurosurgeons are highly skilled at treating this common type of tumor, which makes up approximately 54 percent of all primary brain tumors.