hrp0097p1-173 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2023

Magnetic Resonance Imaging (MRI) Findings and Predictive Factors of Gonadal Neoplasia in Complete Androgen Insensitivity Syndrome

Loch Batista Rafael , Coelho Fernando , Craveiro Flora , Dallago Renata , Domenice Sorahia , Viana Publio , Dantas Patricia , Carvalho Filomena , Mendonca Berenice

Introduction: Complete Androgen Insensitivity Syndrome (CAIS) is characterized by a complete external genitalia appearance and testicular development in 46,XY individuals harboring pathogenic allelic variants in the AR gene. Due to growing evidence regarding the low risk of germ cell tumors (GCT) in AIS. Prophylactic gonadectomy has been debatable in the CAIS management, mainly due to the absence of an accurate biomarker for GCT....

hrp0097p1-176 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2023

Mechanism of mutagenesis and phenotype implications of small indels in the Androgen Receptor gene in Androgen Insensitivity Syndrome

Loch Batista Rafael , Ramos Raquel , Caroline Afonso Ana , Petroli Reginaldo , Tereza Ferrari Maria , Domenice Sorahia , Nishi Mirian , Mendonca Berenice

Indels are highly abundant in human genomes and have contributed massively to genome evolution. However, the role of indels and their underlined mechanisms of mutagenesis in Mendelian disorders still needs to be appreciated. To explore the contribution of indels in a monogenic disorder, we analyzed all indels already described in the AR gene, including three novel indels found in our cohort. We analyzed the indel distribution through the AR coding region, compared wit...

hrp0086p1-p348 | Gonads & DSD P1 | ESPE2016

Exonic Splicing Mutations by Silent Nucleotide Variation in the Androgen Receptor Gene Causes Androgen Insensitivity Syndrome

Loch Batista Rafael , de Santi Rodrigues Andreza , Evilen da Silva Tathiana , Siqueira Cunha Flavia , Lisboa Gomes Nathalia , Rodrigues Daniela , Domenice Sorahia , Frade Costa Elaine , Bilharinho de Mendonca Berenice

Background: Androgen Insensitivity Syndrome is a common form of 46,XY DSD. In the literature, 85–90% of patients with complete form of Androgen Insensitivity (CAIS) and 30% of patients with parcial form (PAIS) have the AR gene mutation identified, In most cases are found a missense mutation with aminoacid change. Mutations without aminoacid changes (silent mutations) are rarely related to human diseases and have never been identified in patients with CAIS.<p class="ab...

hrp0092p3-219 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Final Adult Height in SRY-Negative 46,XX Ovotesticular Differences of Sex Development Individuals

Martins Ferrari Maria Tereza , Moraes Rodrigues Daniela , Lisboa Gomes Nathalia , Yumi Nishi Mirian , Loch Batista Rafael , Maria Frade Costa Elaine , Bilharinho Mendonca Berenice , Domenice Sorahia , Marques Cruz Patricia Sales , Sircili Maria Helena

Introduction: Differences of sex development (DSD) encompass a variety of conditions with atypical development of chromosomal, gonadal or anatomic sex. 46, XX ovotesticular (OT) DSD is a rare condition, in which the presence of testicular and ovarian tissues is identified in the same individual. These patients present variable phenotypes with a wide spectrum of atypical genitalia and their sex assignment can be male or female. Short stature is a frequent issue...