ESPE Abstracts

Introduction: Turner syndrome is a relatively common chromosomal abnormality affecting 1:2000 girls. Virilization can occur in girls with Turner syndrome which is in most cases associated with the presence of an Y chromosome. Mosaicism is found in 25% of the karyotypes, in 6% of those the Y chromosome is present. This could lead to development of androgen producing gonadoblastoma/dysgerminoma. Active screening to search for Y chromosomal material is included i...

Background: 5α-reductase type 2 deficiency (SRD5A2) is a rare cause of 46,XY DSD. Consensus guidelines on sex of rearing assignment at birth favours male gender. Typically undervirilised genitalia at birth virilise variably at puberty, posing gender identity challenges.Aim: We describe relevant data on clinical phenotype, hormonal and molecular workup and gender preference in patients with SRD5A2 deficiency from a ...

Background: Loss-of-function mutations of the androgen receptor (AR) gene result in androgen insensitivity syndrome (AIS) in 46,XY individuals, causing a disorder of sex development. AIS has a clinical continuum according to the resistance severity, being classified into three main categories: complete (CAIS), partial (PAIS), and mild (MAIS). The authors present a female phenotype patient with CAIS.Case Report: An otherw...

Context: The 45,X/46,XY mosaicism poses a great clinical challenge influencing gonadal development, histology, hormonal balance, and growth. Patients present a wide spectrum of phenotypes with varying degrees of genital ambiguity from Turner Syndrome to male. Here, we present five children with 45,X/46,XY mosaicism presenting with different clinical phenotypes.Case Descriptions:Case 1:</str...

Background: Risk of developing germ cell tumors (GCTs) in disorders of sex development (DSD) patients with karyotypes contain Y-chromosome or it’s material (Y) increase with age. The appropriate timing for prophylactic gonadectomy in these patients is still controversial.Aim: To analyze the gonadal tumor incidence and histological assessment of gonads in DSD (Y) patients who were treated in a single institution between 1997 and 03/2018.<p class=...

Introduction: In various forms of XY disorders/differences of sex development (DSD) the risk of germ cell cancer is increased. In the 2006 DSD consensus statement this risk was estimated to be intermediate in 17beta-HSDtype3 deficiency (HSD17B3D) and low in 5alpha-reductasetype2 deficiency (SRD5A2D) but based on very few cases. Few studies have been performed since; therefore we aimed to review gonadal pathology in an international cohort with these conditions...

Purpose: Patients with mixed gonadal dysgenesis (MGD) and ovotesticular disorders of sex development (DSD) usually present with asymmetric gonads. Differential diagnosis of these conditions is based on karyotype and pathological findings of gonads. However, it is difficult to determine sex of rearing and to predict long-term outcomes. This study investigated the clinical features, karyotype, sex of rearing, and pubertal outcomes of patients with MGD and ovotesticular DSD.<...

Background: Androgen receptor (AR) gene mutations are the most frequent cause of 46,XY disorders of sex development and are associated with a variety of phenotypes, ranging from phenotypic women (complete androgen insensitivity syndrome) to milder degrees of undervirilization (partial and mild forms).Aims and objectives: To specify how a phenotype-genotype correlation can be refined by in vitro study based on the nature of amino acid substitutio...

Background: Turner syndrome (TS) is one of the most common chromosomal aberrations resulting from the total or partial absence of one of the X chromosomes in all or a portion of cells. The presence of genetic material of the Y chromosome in TS patients is a risk factor for the development of gonadoblastoma or dysgerminoma.Objective and hypotheses: The aim of this study was to detect the presence of fragments of the Y chromosome, which increase the risk o...

Background: The incidence of gonadal tumor development varies significantly between subsets of patients with disorder of sex development (DSD). In some female patients with Y chromosome too early gonadectomy is perceived as overtreatment.Objective and hypotheses: The aim of the study was to analyze the gonadal tumor incidence in DSD female patients with 45,X/46,XY or 46,XY.Method: 15 patients, managed at single institution between ...