Elizabeth Somers wants everyone to know about meningiomas. This tumor of the central nervous system begins in the coverings that surround the brain or spinal cord and is the most common type of intracranial brain tumor. Most meningiomas are slow-growing and can go undetected for years.

Elizabeth’s baseball-sized tumor was not cancerous, but it became life-threatening, and even altered how she smells and tastes. Thanks to the care...