NCIt synonyms : Subependymal Astrocytoma; WHO Grade 1 Ependymal Tumor; WHO Grade I Ependymal Neoplasm; WHO Grade 1 Ependymal Neoplasm;
NCIt related terms : SUBEPENDYMOMA, BENIGN; Subependymal glioma; Who Grade I Ependymal Tumor;
NCIt definition : A benign, slow growing neoplasm which is typically attached to a ventricular wall.
It is composed of glial tumor cell clusters embedded in an abundant fibrillary matrix
with frequent microcystic change. Some lesions have the histological features of both
subependymoma and ependymoma. It is often detected incidentally and has a very favorable
prognosis. (Adapted from WHO.);
Alternative definition : CDISC: A benign neoplasm of the brain localized in the vicinity of a ventricular wall
and is composed of glial tumor cell clusters embedded in an abundant fibrillary matrix
with frequent microcystic changes.;