hrp0094p2-409 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2021

Surprising X Chromosomes: Unusual Mosaicism

Zorkot Zeinab , Yatsenko Svetlana , Garibaldi Luigi , Witchel Selma

Background: Among 46,XY individuals, androgen insensitivity syndrome (AIS) due to deleterious variants of the androgen receptor (AR) gene is one cause for a difference of sexual development (DSD). Typically, individuals with complete androgen insensitivity syndrome (CAIS) present with female external genitalia and palpable labial masses. Whereas most patients carry germline variants inherited in an X-linked manner, approximately 30% of patients manifest de novo variants. We de...