The tanycytic ependymoma is an extremely rare, primitive neuroectodermal tumor, arising
from the ependymoglial cells or tanycytes. Such cells are generally seen in the primitive
nervous system instead of the mature ependymal cells. The tanycytic ependymoma described
in this report was found in a 42-year-old man. Histological analysis strongly suggested
that this tumor originated from a primitive progenitor cell, the ependymoglia or the
tanycyte in the lateral ventricle.
Tanycytic Ependymoma - Lateral Ventricle
