NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,032 terms related to cancer and medicine.
- listen (eh-PEN-dih-MOH-muh)
- A type of brain tumor that begins in cells lining the spinal cord central canal (fluid-filled space down the center) or the ventricles (fluid-filled spaces of the brain). Ependymomas may also form in the choroid plexus (tissue in the ventricles that makes cerebrospinal fluid). Also called ependymal tumor.