label: 45,X/46,XY mixed gonadal dysgenesis
label_lc: 45,x/46,xy mixed gonadal dysgenesis
description: 45,X/46,XY mixed gonadal dysgenesis (45,X/46,XY MGD) is a disorder of sex development (DSD) associated with a numerical sex chromosome abnormality resulting from Y-chromosome mosaicism and leading to abnormal gonadal development.