Definition of Ependymoma
Ependymoma: A type of brain tumor that derives from the glial cells that line the cavities within the brain's ventricles. Because cerebrospinal fluid normally flows through these ventricles, blockage due to an ependymoma can cause buildup of fluid, pressure on the brain, and hydrocephalus.
Last Editorial Review: 3/19/2012
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?