Definitions for "Meningiomas"
Meningiomas are thin membranes that cover the brain and develop from the meninges. They appear most often in middle-aged adults and children.
Hard, slow growing, usually vascular tumors that grow mainly along the meningeal (membranes that envelop the brain and the spinal cord) vessels invading the brain and skull.
Generally benign tumors that develop from the meninges, thick strong membranes that cover the brain.