hrp0084p3-782 | DSD | ESPE2015

The Time of First Presentation at the Department of Paediatric Endocrinology of Patients with 46, XY DSD

Kolesinska Zofia , Niedziela Marek

Background: The atypical appearance of the external genitalia in a neonate, defined as the external masculinization score (EMS) less than 11, should incline the clinicians to perform diagnostic procedure ideally managed by a multidisciplinary team in a tertiary centre. Among the patients with disorders of sex development (DSD), the most challenging subgroup in terms of aetiology, is the subgroup with 46, XY karyotype.Objective and hypotheses: To study th...

hrp0086p2-p166 | Bone & Mineral Metabolism P2 | ESPE2016

Diversity in Phenotype of Two Siblings and their with X-Linked Hypophosphatemic Rickets due to PHEX Mutation

Rojek Aleksandra , Kolesinska Zofia , Niedziela Marek

Background: Hypophosphatemic rickets (HR) is a group of rare disorders caused by an excessive renal phosphate wasting. The dominant form of X-linked HR (XLHR) is caused by mutation in PHEX (phosphate-regulating endopeptidase) gene. XLHR phenotype is characterized mainly by rickets, bone deformities, short stature, dental anomalies, hypophosphatemia, low renal phosphate reabsorption, normal serum calcium level, hypocalciuria, normal/low serum level of vitamin D (1,25(O...

hrp0082p1-d1-202 | Reproduction | ESPE2014

Genetic Markers in the Study of Chromosome Y in the Population of Girls with Turner Syndrome

Rojek Aleksandra , Obara-Moszynska Monika , Rabska-Pietrzak Barbara , Kolesinska Zofia , Niedziela Marek

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...

hrp0082p3-d2-684 | Bone (1) | ESPE2014

Clinical Phenotype and Molecular Studies in Patients with Hypophosphatemic Rickets

Obara-Moszynska Monika , Rojek Aleksandra , Kolesinska Zofia , Slomko-Jozwiak Malgorzata , Niedziela Marek

Background: Hypophosphatemic rickets (HR) is a group of rare disorders caused by excessive renal phosphate wasting. The dominant form of HR is X-linked HR (XLHR) caused by mutation in the phosphate-regulating endopeptidase gene PHEX. There is also autosomal dominant form of HR caused by mutation in FGF23 gene or rare autosomal recessive form caused by DMP1 mutation. The phenotype can vary from very delicate to severe bone disease.<p class="abstex...

hrp0082p3-d1-953 | Sex Development | ESPE2014

The Development of Gonadoblastoma in a 3-Year-Old Girl with 46,Xdel(Y)p11.3, Gonadal Dysgenesis and Associated Congenital Anomalies

Kolesinska Zofia , Rojek Aleksandra , Kedzia Helena , Blaszczynski Michal , Latos-Bielenska Anna , Kapczuk Karina , Niedziela Marek

Background: One of the crucial aspects of the management of disorders of sex development is the assessment of the risk of malignant transformation of a dysgenetic gonad.Objective and hypotheses: The PCR analysis of germ-cell risk factors as the presence of the TSPY gene may be helpful in decision making of an early gonadectomy.Results: We report a 46,Xdel(Y)p11.3 girl with gonadal dysgenesis, that was referred to the Depar...

hrp0089p2-p361 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P2 | ESPE2018

Towards an Integrated Approach to Diagnosis of 46,XY Disorder of Sex Development

Kolesinska Zofia , Acierno James Jr , Faisal Ahmed S. , Kapczuk Karina , Skorczyk-Werner Anna , Mikos Hanna , Rojek Aleksandra , Krawczynski Maciej , Pitteloud Nelly , Niedziela Marek

Background and objective: Given phenotype variability as well as limited utility of conventional endocrine investigations in reaching the diagnosis in a 46,XY patient suspected of a disorder of sex development (DSD), there is an increasingly stronger argument for considering targeted genetic sequencing at an earlier stage of the evaluation process. This study focused on identifying the relationship between clinical examination, endocrine and radiological assessment, as well as...

hrp0094p1-43 | Sex Endocrinology and Gonads A | ESPE2021

Broad range of phenotypes in an international cohort of 75 DSD individuals with SF-1/NR5A1 variants

Kouri Chrysanthi , Sommer Grit , Ahmed Faisal , Balsamo Antonio , Baronio Federico , Bryce Jillian , Camats Nuria , Cetinkaya Semra , van der Grinten Hedi L Claahsen , Cools Martine , Darendeliler Fatma Feyza , Davies Justin H , Fabbri-Scallet Helena , Globa Evgenia , Guerra-Junior Gil , Guran Tulay , Hannema Sabine , Hiort Olaf , Janner Marco , Kalinchenko Natalia , Lachlan Katherine , Kolesinska Zofia , l’Allemand Dagmar , Lang-Muritano Mariarosaria , Lucas-Herald Angela , Martin Idoia Martinez de Lapiscina , Mazen Inas , Moenig Isabel , Muhrer Julia , Niedziela Marek , Nordenstrom Anna , Orman Burce , Poyrazoglu Sukran , Tack Lloyd , Tadokoro-Cuccaro Rieko , Wasniewska Malgorzata , Yavas Zehra , Zelinska Nataliya , Fluck Christa E ,

Background: Steroidogenic Factor 1 (NR5A1/SF-1) is essential for the development and function of human sex and steroid organs. Variants of SF-1 lead to a broad spectrum of phenotypes including adrenal insufficiency and differences of sex development (DSD), but data on the whole picture of phenotypes in individuals with SF-1 variants are currently lacking. We aim to investigate the phenotype of individuals with SF-1 variants in a large interna...