ESPE Abstracts

Background: Swyer syndrome (46,XY pure gonadal dysgenesis) is a rare disorder, which is characterized by female phenotype, female internal genitalia and fibrotic and primitive gonads. Classically, breast development and menstruation are absent due to hypergonadotropic hypogonadism.Objective and hypotheses: To our knowledge, three cases of Swyer syndrome with spontaneous breast development have been reported so far. In these reports, breast development wa...

Background: STAT5B deficiency is characterized by severe postnatal growth failure, low IGF1, elevated levels of GH and prolactin, and immunodeficiency. To date, only ten patients with seven different mutations have been described.Objective and hypotheses: Describe clinical characteristics of a novel homozygous frameshift mutation in STAT5B.Results: A 17-year-old female was referred for proportionate short stature and prima...

Aims: To define the normal ranges of the thicknesses of the skin and subcutaneous tissues via ultrasonography, and to determine whether the current syringe needle-lengths used for the subcutaneous injections were appropriate.Methods: The thicknesses of the skin and subcutaneous tissues of 2 244 students were measured at the left arm using ultrasonography. Patients were divided into three groups based on age: 6–8, 9–12 and 13–17 ye...

Background: Partial androgen insensitivity syndrome (PAIS) typically presents with micropenis, penoscrotal hypospadias, bifid scrotum with descending or undescending testes and gynecomastia. It is x-linked recessive disease resulting from mutations in androgen receptor (AR) gene.Objective and hypothesis: To present clinical characteristics of a novel mutation in the AR gene in an adolescent boy with PAIS who presented with gynecomastia ...

Objective: To determine the prevalences of goitre and thyroid nodule, and to analyse the associations among age, gender, anthropometrics and thyroid volume in school children.Materials and method: Schools governed by Ministry of Education in Van province were included into the study. Sonographic evaluations of thyroid glands were performed in children aged 6–17 years, and weight, height, waist circumference, hip circumference, and skinfold thickness...

Introduction: Parathormone-related peptide (PTHrP) regulates tissue calcium concentration by acting in paracrine or autocrine ways. It is mostly responsible for paraneoplastic hypercalcemia seen in adults. Paraneoplastic hypercalcemia in children is rarely reported in cancers such as ALL, medulloblastoma and hepatoblastoma (0.4–0.7%). In experimental studies, PTHrP is shown to be synthesized apart from neoplastic tissue (glomerulus and tubule cells).<p class="abstext"...

Background and objective: The first and rate-limiting step of steroidogenesis is the conversion of cholesterol to pregnanolone which is catalyzed by the P450scc side chain cleavage enzyme (encoded by CYP11A1 gene-SCC). Homozygous recessive mutations of the CYP11A1 gene cause a global steroid hormone deficiency thereby disorders of sexual development in 46, XY individuals with a variable phenotype depending on the mutation characteristics. About 60 cases of SCC...

Introduction: Congenital adrenal hyperplasia (CAH) is an autosomal recessively transmitted disease and 95% of CAH cases are due to 21-hydroxylase deficiency (21-OHD). There are more than 100 mutations that cause CAH due to 21-OHD and the clinical expression of the disease is reported to correlate with mutated alleles.The aim: The aim of this study was to investigate responsible mutations and then to evaluate genotype...

Background: There exists limited data regarding genetic etiology of hypophosphatemic rickets in Turkey.Objective and hypotheses: To investigate the type of genetic defect in 16 index children and their families (12 unrelated, 1 related).Method: Following clinical and laboratory assessment, PHEX analysis was made initially unless a mutation in another gene was suspected. If negative, FGF23, SLC34A3, SL...

Background: 3β-hydroxysteroid dehydrogenase (3βHSD) deficiency is a rare form of congenital adrenal hyperplasia (CAH) and caused by loss of function mutations in the HSD3B2 gene. In classic form, affected patients have salt wasting early in infancy and may have ambiguous genitalia in both sexes. Herein we report a nonvirilized female patient with classic form of 3βHSD deficiency due to homozygous S218P mutation in the HSD3B2 gene and classic phenylketonuria....