hrp0092p2-284 | Thyroid | ESPE2019

Papillary Thyroid Cancer Associated with Hyperthyroidism

Acar Sezer , Paketçi Ahu , Demir Korcan , Ates Oguz , Özer Erdener , Özdogan Özhan , Böber Ece , Abaci Ayhan

Introduction: The most common causes of hyperthyroidism in the pediatric age group are autoimmune conditions (Graves' disease or Hashitoxicosis). Hyperfunctioning thyroid carcinomas are rarely reported. In this case report, we present a 17-year-old girl who was diagnosed with papillary thyroid carcinoma upon testing for hyperthyroidism.Case: A 17-year-old girl had presented to another center with a 1-month history of...

hrp0095p1-280 | Fat, Metabolism and Obesity | ESPE2022

A rare cause of monogenic obesity: Schaaf-Yang syndrome due to a novel MAGEL2 gene variant

Yavas Abali Zehra , Arslan Ates Esra , Guran Tulay , Bereket Abdullah , Turan Serap

Background: Paternally expressed mono-allelic pathogenic variants in the MAGEL2 (melanoma antigen L2) gene cause Schaaf-Yang syndrome (SHFYNG), a multisystem disorder with psychomotor delay, intellectual disability, behavioral abnormalities, and obesity. Severity of the disease is highly variable, some patients may die in utero and some can live with moderate disabilities. MAGEL2 gene is located in the 15q11.2– q13 region which includes...

hrp0094p2-432 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2021

46,XY DSD due to biallelic DHX37 gene mutations

Eltan Mehmet , Helvacioglu Didem , Ates Esra Arslan , Abali Zehra Yavas , Turan Serap , Bereket Abdullah , Guran Tulay

Background: DEAH-box protein DHX37, encodes an RNA helicase, is involved in ribosome biogenesis. Monoallelic mutations in DHX37 gene have recently been identified in 46,XY differences/disorders of sex development (DSD) patients with nonsyndromic gonadal dysgenesis as well as testicular regression, while biallelic mutations have been associated with microcephaly and structural brain abnormalities. Here, we present a patient with penoscrotal hypospadias and bil...

hrp0097fc13.4 | Pituitary, neuroendocrinology and puberty 2 | ESPE2023

Clinical and molecular genetic characteristics of 98 patients with congenital hypopituitarism: A single-center experience

Yavas Abali Zehra , Arslan Ates Esra , Eltan Mehmet , Turan Serap , Bereket Abdullah , Guran Tulay

Background: Congenital hypopituitarism (CH) refers to a deficiency of one or more pituitary hormones resulting from variants in genes encoding transcription factors for pituitary development. CH cases are mostly sporadic but 5-30% can be familial. Genetic etiology is not determined in most cases. The aim of our study was to evaluate the genetic features of CH using different molecular and/or molecular cytogenetic techniques.Subje...

hrp0095p1-173 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2022

Differences due to the variant type in the inheritance pattern of BMP15 gene-related primary ovarian insufficiency: a girl with a homozygous null BMP15 gene variant

Yavas Abali Zehra , Arslan Ates Esra , Eltan Mehmet , Gurpinar Tosun Busra , Bereket Abdullah , Guran Tulay , Turan Serap

Background: Bone morphogenetic protein 15 (BMP15), is an oocyte-specific growth factor, that regulates folliculogenesis and ovulation rate. It is encoded by the BMP15 gene (chromosome Xp11.2), in which heterozygous missense variants in the precursor or mature peptide cause primary ovarian insufficiency (POI) with the dominant-negative effect. BMP15-related ovarian dysgenesis (OD) constitutes 1.5-2.0% of POI. The underlying mechanism ...

hrp0089p2-p009 | Adrenals and HPA Axis P2 | ESPE2018

Phenotype-genotype Correlations of CYP21A2 Mutations in Patients with Congenital Adrenal Hyperplasia in Turkey

Simsek Enver , Binay Cigdem , Cilingir Oguz , Demiral Meliha , Hazer Ilhan , Artan Sevilhan

Background: Mutations in the 21-hydroxylase gene (CYP21A2) accounts for 90–95% of all congenital adrenal hyperplasia (CAH) cases. There is a strong relationship between genotype and disease severity.Objective: The aim of the study was to investigate the most frequent known mutations in CYP21A2 and to describe the genotype-phenotype correlation in Turkish children with CAH due to 21-hydroxylase deficiency.Methods: Based on clin...

hrp0097p1-346 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Does premature adrenarche affect adult height in girls?

Vuralli Dogus , Oguz Demir Osman , Celep Ismahan , Gonc Nazli , Ozon Alev

Background: Premature adrenarche (PA) is characterized by an advanced bone age (BA) relative to chronological age (CA); nevertheless, clinical importance of this is not entirely understood. Literature contains few data on the impact of increased BA on adult height (AH) in PA. Objective of this study is to assess AH in girls with PA, and factors influencing AH.Methods: Retrospective analysis was carried out on 477 girls w...

hrp0092p2-25 | Adrenals and HPA Axis | ESPE2019

Cushing Syndrome due to an Adrenacortical Carcinoma in a Baby with Atypical Beckwith-Wiedemann Syndrome

Eltan Mehmet , Cerit Kivilcim , Kaygusuz Sare Betul , Ates Esra , Eker Nursah , Bagci Pelin , Ergelen Rabia , Turan Serap , Bereket Abdullah , Guran Tulay

Beckwith-Wiedemann syndrome (BWS) is a congenital tumor-predisposition syndrome of which around 70% develops because of the methylation defects in the imprinted genes at chromosome 11p15.5. KCNQ1OT1 hypomethylation is the most common underlying genetic aberration in sporadic the BWS, accounting for 50% of the sporadic cases but confers the least tumor risk. We present a 5 month-old girl who presented with an excessive weight gain, cushingoid face, arrested gro...

hrp0089p3-p154 | Fat, Metabolism and Obesity P3 | ESPE2018

Relation of Screen-Time (Phone-Computer-TV-Online Games) and Physical Activity with Childhood Obesity

Yılmaz Mehmet Mustafa , İlarslan Nisa Eda Cullas , Gunay Fatih , Yılmaz Ozlem , Ates Funda Seher Ozalp , Kose Serdal Kenan , Atalay Semra , Bilir Pelin

Objective: Sedentary lifestyle obviously increases the risk of obesity. Reduced physical activity and increased screen-time seem to act as major determinants of the rapid increase of childhood obesity. Prevention of obesity is easier and more practical in comparison with treatment of obesity and its complications. Treatment of childhood obesity not only carries positive biopsychosocial consequences for the child but also serves as an important public health issue by preventing...

hrp0084p1-38 | Diabetes | ESPE2015

Metabolic Syndrome Frequency in Longitudinally Followed Children with Premature Adrenarche During Pubertal Ages

Kaya Gamze , Poyrazoglu Sukran , Erol Oguz Bulent , Saygili Seha , Sukur Mine , Bas Firdevs , Bundak Ruveyde , Darendeliler Feyza

Objective: To evaluate metabolic syndrome parameters in children with premature adrenarche (PA) during presentation in prepuberty and afterwards in puberty.Methods: 54 (48 femals, six males) patients (mean age 12.5±2.4 years) diagnosed with PA and followed until puberty were included in our study; as the control group 28(22 females, six males) (age, sex, puberty matched) healthy children (mean age 13.5±2.2 years) were taken. CAH was ruled out i...