??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.????? ??? ????? ???? ????.????? ???? ??? ??? ??? ???? ?????.A variant of ependymoma, generally located in the spinal twine, with tumor cells arranged in fascicles of variable width and cell density.???? ???? ?? ?????, ??, ?? ? ??(??)??? ???????.g., frontal executive dysfunction, impaired