??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.?? ????? ???? ??? ???? ?? ??? ? ?? ???? ??? ? ????. ?? ????? ??? ????? ??? ???? ?? ???? ??????!A variant of ependymoma, often located in the spinal twine, with tumor cells arranged in fascicles of variable width and mobile density.By adolescence, all people with MLIV have intense visual