??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.???? ??? ? ?? ??: ??? ??? ???? ???? ??? ? ????.A variant of ependymoma, often present in the spinal cord, with tumor cells organized in fascicles of variable width and cell density.???? ???? ?? ?????, ??, ?? ? ??(??)??? ???????.SPG26 is surely an autosomal recessive form of intricate spa