A type of tumour that develops from the meninges, the membrane that surrounds the brain and spinal cord.
A meningioma is a tumor that grows in the protective lining of the brain and spinal cord, called the meninges. Most are benign, though in rare cases they can be cancerous (malignant). Enlarge image. The most common type of primary brain tumor is the meningioma, a noncancerous tumor that arises from the abnormal growth of the cells that form the delicate outer covering of the brain, called the meninges. Approximately 96% of meningiomas occur within the skull, with the remaining 4% involving the spinal column. A meningioma is a type of tumor that develops from the meninges, the membrane that surrounds the brain and spinal cord. There are three layers of meninges, called the dura mater, arachnoid and pia mater. Meningioma: A common type of slow-growing, usually benign brain tumor that arises from the dura, one of the meninges, the membranes covering the brain and spinal cord. Most people with a meningioma will have a tumor at only one site, but it also is possible to have several tumors growing simultaneously in different parts of the brain and spinal cord. Meningiomas are a common type of brain tumor that develops slowly in the meninges, or the area that covers and protects the brain and spinal cord. Most meningiomas are benign and can vary greatly in size and location. A meningioma is a tumor that arises from the meninges — the membranes that surround your brain and spinal cord. Most meningiomas are noncancerous (benign), though rarely a meningioma may be cancerous (malignant). The Johns Hopkins Meningioma Center is part of one of the largest brain tumor centers in the world. We have expertise in diagnosing and treating all types of brain tumors, including meningiomas.
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what is meningioma