About Meningiomas

Meningiomas are usually slow-growing (benign) tumors that develop from the meninges, the protective linings of the brain and spinal cord. They may be found over the surface of the brain (the convesities), at the base of the brain, or along the folx, a fibrous sheath dividing the right and left sides of the brain.

Meningiomas account for about 20 percent of primary brain tumors. Although they are almost always benign, meningiomas can be difficult to remove completely and can recur. Most meningiomas are referred to as typical meningiomas (slow growth, often surgically curable). On the other end of the spectrum are malignant meningiomas which grow more rapidly and can invade the surrounding bone and/or brain; in some instances, they can spread to other parts of the body. In between the typical and the malignant meningioma is the atypical meningioma. For atypical and malignant meningiomas, radiation is often used after surgery.

Meningiomas may not cause symptoms and are sometimes detected incidentally on CT or MRI scans obtained for other reasons.

Tags: , , ,

Leave a Comment