ESPE Abstracts

Background: Although it is reported that central precocious puberty (CPP) GnRH analogue (GnRHa) treatment decreases the growth velocity, its relation with IGF-1 is controversial. We aimed to investigate the effects of GnRHa treatment on IGF-1 level and the relationship between IGF-1 level and growth velocity (GV) in our study.Method: Forty-four girls with CPP, who started breast development before the age of 8 years, were enrolled in the study. IGF-1 lev...

Background: Orthopedic complications related to the GH are rare and there is no clear pathological association between the use of GH and these complications. Calcaneal apophysitis is an inflammation of the apophysis and is caused by the constant pull of the Achilles tendon. A literature search did not reveal a similar case of calcaneal apophysitis during GH use.Case presentation: A 13-year-old male receiving GH treatment for isolated GH deficiency presen...

Objective: AMH decreases by 30% in the first two years following puberty. Although it is known that AMH is associated with FSH and LH, the AMH response to rapid changes in GnRH is not known clearly in puberty. It has been shown that AMH levels in central precocious puberty (CPP) are lower than in premature thelarche (PT), but the levels of AMH in peripheral precocious puberty (PPP) have not been evaluated. The aim of this study was to evaluate the basal an...

Introduction: DICER1 syndrome is a pleotropic, autosomal dominant familial genetic tumor predisposition syndrome. DICER1 somatic + germ-line mutations (double hit hypothesis); cystic nephroma; pleuropulmonerblastoma, ovarian sex cord-stromal tumors, multinodular goitre (MNG) are associated with many conditions such as differentiated thyroid cancer, pituitary blastoma. We presented three cases, two of whom were siblings, who had been consulted because of no...

Introduction-Aim: MODY;It is an autosomal dominant, rare type of diabetes that occurs in young people as a result of mutations of beta cell function and genes involved in insulin secretion. The cases may be misdiagnosed as Type1 and Type2 diabetes. Considering that MODY is clinically and genetically heterogeneous, the findings should be evaluated correctly. It is important to define the clinical-laboratory characteristics of diagnosis and follow-up of patients...

Background: It is difficult to define the laboratory finding of hyperandrogenism and associate it with clinical findings in children and adolescents. Androgen levels can be high in obesity, hirsutism, and PCOS. The free androgen index (FAI) is a simple ratio used to evaluate the biologically active testosteroneObjective and hypotheses: Our aim was to determine the FAI in adolescent females and to evaluated how this index is influenced in adolescents diag...

Background: Primary hypothyroidism is frequently associated with delayed puberty. However, precocious puberty is known to occur in some rare cases of hypothyroidism untreated for a long time. Differently from the cases suffering from precocious puberty due to other causes, linear growth and bone age are retarded in children developing precocious puberty associated with hypothyroidism. There are no definite data about the incidence of precocious puberty associated with hypothyr...

Background: Hypophosphatemic rickets is a clinical picture with inadequate bone mineralization that develops following renal phosphate loss. One of the most common complications in this group of patients is nephrocalcinosis. However, the mechanisms causing nephrocalcinosis are not clear.Objective and hypotheses: The aim of our study was to define the risk factors affecting the development of nephrocalcinosis, which is reported to be seen at a rate of 50%...

Background: 17β-Hydroxysteroid dehyrogenase type 3 (17βHSD-3) deficiency is an autosomal recessive form of 46,XY disorder of sex development (DSD). 17βHSD-3 is present almost exclusively in the testes and converts androstenedione to testosterone. The diagnosis can be easily missed in early childhood as the clinical presentation may be subtle. The most frequent presentation of 17βHSD-3 deficiency is a 46,XY individual with female external genitalia, labial f...

Introduction: Complete androgen insensitivity syndrome (CAIS) is a sexual development disorder due to mutations that cause function loss in androgen receptors in 46, XY individuals. The risk of malignancy development until the age of 25 years in CAIS is 5–10%. We present a CAIS case where a Sertoli cell tumour was found, together with the USG and MR findings.Case: A 17-year-old female presented to our department complaining of amenorrhoea. She had a...