hrp0092p1-270 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology (1) | ESPE2019

Large Spectrum of DSD Phenotype Caused by Pathogenic Variants in Wilms Tumor Suppressor Gene 1

Ferrari Maria Tereza Martins , Domenice Sorahia , Mendonça Berenice Bilharino , Moraes Daniela Rodrigues , Batista Rafael Loch , Gomes Nathalia Lisboa , Nishi Mirian Yumie , Sircili Maria Helena , Paula Tatiana Evelin , Costa Eduardo , Costa Elaine Maria Frade

Introduction: The Wilms tumor suppressor gene 1 (WT1) plays an essential role in urogenital and kidney development. Heterozygous germline mutations in WT1 have been classically associated with Denys–Drash (DDS) and Frasier syndrome (FS). Exonic missense mutations in the zinc-finger region are the cause of DDS and mutations affecting the canonic donor KTS splice site of intron 9 are the cause of FS. New phenotypes, as 46,XX testicular DSD...

hrp0092p1-262 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology (1) | ESPE2019

Long-Term Outcome in Leydig Cell Hypoplasia

Boncompagni Alessandra , Bryce Jillian , Lucaccioni Laura , Iughetti Lorenzo , Acerini Carlo , Cuccaro Rieko T , Bertelloni Silvano , Hannema Sabine E , Darendeliler F Feyza , Poyrazoglu Sükran , Denzer Friederike , Batista Rafael L , Domenice Sorahia , Latronico Ana C , Mendonça Berenice B , Rey Rodolfo , Ahmed S Faisal

Background: Leydig Cell Hypoplasia (LCH) is a very rare autosomal recessive condition that is manifested by a wide spectrum of phenotypes, ranging from completely female external genitalia to male genitalia. Long-term outcome in these patients is unclear.Objectives: To assess sex assignment, clinical characteristics and long-term outcome of 46,XY LCH cases.Patients and Methods: Thr...