Revisiting the Neuropsychological and Clinical Profile of Mosaic Turner Syndrome With a Ring X Chromosome.

Determining karyotype-phenotype correlations for individuals with Turner syndrome ("TS individuals") is a longstanding research endeavor. The limited literature on Turner syndrome (TS) with a ring X chromosome hinders counseling about the neuropsychological and clinical features. To further characterize these phenotypes, we compared 27 TS individuals with 46,X,r(X)/45,X ("ring X") to 50 non-mosaic 45,X, and 27 mosaic 45,X/46,XX ("mosaic 45,X") individuals.