Meningioma

A meningioma is a tumor that arises from one of the layers of tissue covering the central nervous system (the meninges). Meningiomas are not true brain tumors, since they push in against the brain rather than arise out of it. They are very common, and there are both benign and aggressive forms.

These tumors cause problems when they compress or irritate the underlying brain, spinal cord, or nerves. Symptoms vary widely depending on where a meningioma grows, but they can include headaches, vision changes, nausea, balance problems, weakness, and seizures, among others. Most meningiomas do not cause any symptoms at all.

Small, asymptomatic meningiomas can often simply be watched over time with MRI scans (“watchful waiting”). I usually begin by monitoring every 3 months and then spacing the scans out to every 6 months and later yearly once the meningioma has been confirmed to be stable.

If a meningioma is growing or causing symptoms, treatment should be considered. The primary treatment options include removal with surgery (e.g. craniotomy or laminectomy), and radiosurgery (e.g. Gamma Knife). To decide between these therapies, I consider factors such as the size, rate of growth, and location of the meningioma as well as your age and overall health.

The good news is that with treatment, most meningiomas can be controlled or even cured. Roughly 85% of meningiomas are grade 1, meaning that if they are removed, they are unlikely to come back.

Below are examples of meningiomas that I have removed.

If you have a meningioma or another tumor of the brain or spine and live near Denver, please consider meeting me in consultation to learn more about your treatment options.