Major pharmaceutical companies continually research and develop new medications and treatments for brain cancer, which must be shown to be safe and effective before doctors can prescribe them to patients. Through clinical trials, researchers test the effects of new medications on a group of volunteers with brain cancer. Following a strict protocol and using carefully controlled conditions, researchers evaluate the investigational drugs under development and measure the ability of the new drug to...
Previous injury may also be a risk factor, but a recent study failed to confirm this. Meningiomas have been found in places where skull fractures have occurred. They've also been found in places where the surrounding membrane has been scarred.
Some research suggests a link between meningiomas and the hormone progesterone.
Middle-aged women are more than twice as likely as men to develop a meningioma. Most meningiomas occur between the ages of 30 and 70. They are very rare in children.
Because most meningiomas grow very slowly, symptoms often develop gradually, if they develop at all. The most common symptoms include: