Meningiomas are slow-growing tumors that arise from the meninges. Most meningiomas are benign. They are the most common of all nonglial, primary brain tumors, with figures cited ranging from 15% to 25% of all intracranial tumors (Claus et al. 2005; Hart et al. 1997). Meningiomas occur most commonly between the ages of 40 and 70, and there is a higher incidence in women than men (about 2–1). Childhood meningiomas are rare. A small percentage of meningiomas are classified as atypical or malignant, and these types of tumors are usually faster growing, are more infiltrative, and produce more symptoms. Tumor locations vary but meningiomas are most frequently found in the convexity, falx, and parasagittal regions. Sphenoid wing, olfactory groove, and posterior fossa are other common locations. Meningiomas can also occur in the spine and cause symptoms by compression. Since meningiomas do not usually infiltrate the brain parenchyma, they are not typically associated with...
References and Readings
- Hart, B. L., Benzel, E. C., & Ford, C. C. (1997). Fundamentals of neuroimaging. Philadelphia: Saunders.Google Scholar