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What is a posterior fossa meningioma?

What is a posterior fossa meningioma?

Posterior fossa meningiomas are tumors that form near the bottom of the skull, by the brainstem and cerebellum. This small area controls movement, coordination, and vital body functions such as breathing.

What is Clival meningioma?

Clival meningiomas occur in the base of the skull in the posterior fossa. They usually affect people in middle age and symptoms typically progress for about three years before diagnosis. At Mount Sinai, we have extensive experience treating clival meningiomas. Symptoms can include: Coordination problems (ataxia)

Is posterior fossa a cancerous tumor?

Most tumors of the posterior fossa are primary brain cancers. They start in the brain, rather than spreading from somewhere else in the body. Posterior fossa tumors have no known causes or risk factors.

How big does a meningioma have to be for surgery?

Ideally, surgical removal of meningioma entails removal of a one-centimeter margin all the way around the tumor. However, this type of resection is not always possible, especially in the skull base. These deep-seated tumors in the skull base require referral to a skull base neurosurgeon.

Can a meningioma cause a stroke?

Strokes due to meningioma are a highly rare clinical occurrence but should be given serious consideration, particularly in young patients.

When should a meningioma be removed?

If your meningioma causes signs and symptoms or shows signs that it’s growing, your doctor may recommend surgery. Surgeons work to remove the meningioma completely. But because a meningioma may occur near many delicate structures in the brain or spinal cord, it isn’t always possible to remove the entire tumor.

What is the average size of a meningioma?

Meningiomas typically grow 1 to 2 millimeters per year. Tumors less than 2 centimeters in size tend to be asymptomatic, but this is heavily dependent on location. Stable, asymptomatic lesions or slow-growing tumors in patients over 70 are typically followed with serial imaging.

Can you live a normal life with a meningioma?

Though meningioma patients are never completely “out of the woods,” you can live a normal life while you’re being vigilant with regular brain imaging.

What is the prognosis for meningioma?

The 10-year survival rate for malignant meningioma is over 59%. The person’s age and whether the tumor is cancerous affect survival rates for meningioma, along with other factors. The 5-year survival rate for malignant meningioma is over 77% for children ages 0 to 14 and about 81% in people ages 15 to 39.