PDS also includes growth of euthyroid goiter in late childhood to early adulthood Whilst NSEVA does not. [from GeneReviews]???? ??? ? ?? ??: ??? ??? ???? ???? ??? ? ????.A variant of ependymoma, normally found in the spinal cord, with tumor cells organized in fascicles of variable width and mobile density.???? ???? ?? ?????, ??, ?? ? ??(??)??? ???