hrp0097lb18 | Late Breaking | ESPE2023

A Novel Variant of NR2F2 Associated with Non-syndromic 46,XY DSD

Wankanit Somboon , Zidoune Housna , Bignon-Topalovic Joëlle , Schlick Laurène , Houzelstein Denis , Fusee Leila , McElreavey Kenneth , Bashamboo Anu , Elzaiat Maëva

Differences of sex development (DSD) are congenital conditions with discordance between chromosomal, gonadal and/or anatomic sex. DSD can be syndromic or non-syndromic based on the presence or absence of somatic anomalies, respectively. Variants in several genes have been identified in association with errors of testis determination and male genital differentiation. However, despite technological advances, a genetic diagnosis is not achieved in nearly 50% of individuals presen...

hrp0095p1-377 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2022

Novel genomic variants, atypical phenotypes and evidence of a digenic/oligogenic contribution to Disorders/Difference of Sex Development in a large north African cohort.

Zidoune Housna , Ladjouze Asmahane , Chellat-Rezgoune Djalila , Boukri Asma , Aman Dib Scheher , Tebibel Meryem , Sifi Karima , Abadi Noureddine , Satta Dalila , Benelmadani Yasmina , Bignon-Topalovic Joelle , Bashamboo Anu , McElreavey Ken

The majority of individuals with disorders/differences of sex development (DSD) do not have a genetic etiology. However, recently new genes causing DSD have been reported and using the unbiased approach of whole exome sequencing (WES) the diagnostic yield should be improving. Here, we performed WES on a large cohort of 125 individuals all of Algerian origin, who presented with a wide range of DSD phenotypes. Parental consanguinity was reported in 36% of individuals. The geneti...