Ependymal tumor. Definition

Medical Definition: Ependymal tumor

Brain tumor that begins in cells lining the central canal of the spinal cord (fluid-filled space in the center) or the ventricles (fluid-filled spaces of the brain). Ependymal tumors may also form in the choroid plexus (tissue in the ventricles that makes cerebrospinal fluid). Also called ependymoma.

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