“Ependymoma is a challenging tumor in neuro ... homozygous deletion of the CDKN2A gene was associated with anaplastic histology and poor patient survival. Gains of chromosomes 9, 15q and 18 ...

Of the 29 classic ependymomas studied, 24 (82.76%) cases were intracranially located, whereas 14 of them (58.3%) were in the posterior fossa and 5 (17.24%) were located within the spinal region.

[4] The present study has attempted to evaluate CD99 as a possible specific marker that could selectively differentiate ependymomas from other CNS tumors. Both CD99 and EMA were also evaluated ...