ESPE Abstracts

Introduction: Thyroid cancers are rare cancers in children and their incidence is 1.4% in pediatric malignancies. However, its frequency is increasing. While the incidence of prepubertal children is equal among girls boys, it increases with age in female patients. Radiotherapy, which is applied to the neck region, and hashimoto disease are the risk factors. The relationship between Hashimoto's disease and papillary thyroid cancer is thought to be assoc...

Background: The congenital form of congenital multiple pituitary hormone deficiencies (cMPHD) is rarely differentiated from the acquired type. cMPHD is due to impaired production of several pituitary hormones, caused by mutations in the pituitary transcription factors genes: PROP1, POU1F1 (PIT1), HESX1, LHX3, LHX4. It includes short stature, delayed puberty, cognitive impairment, obesity and metabolic abnormalities.Objective and hypotheses: To evaluate i...

Introduction: Gonadal insufficiency is a common long-term endocrinological complication of BMT and is mainly associated with the chemotherapy protocol. In the literature, gonadal insufficiency after BMT varies between 66% -80% in girls and 35-60% in boysAim: to investigate the frequency and the factors affecting gonadal insufficiency in cases with BMT due to non-malignant indications in children or adolescenc...

Introduction: 17β-hydroxysteroid dehydrogenase type 3 (17βHSD3) enzyme deficiency is a rare cause of 46 XY disorder of sexual development. It is inherited autosomal recessively and clinical phenotype is highly heterogeneous and depends on the mutation severity. Conversion of androstenedione to testosterone deteriorates due to lack of enzyme.Objective: In this case report, we present a case who was born en...

Background: Primary ovarian insufficiency (POI) affects 1% of women and is associated with significant medical consequences. In approximately 10% of cases, POI presents early with absent puberty or primary amenorrhoea. A genetic cause for POI can be found in up to 30% of women. Identified genes often relate to the complex biological processes occurring in fetal life which underpin normal ovary development and function in later adulthood.Objective: We aim...

Background: In recent years more and more genetic defects along the GHRH–GH–IGF-I axis have been reported. Those mutations of the IGF-I receptor (R) are a rare abnormality of whom only the heterozygotes progenies survive.Objective and hypotheses: To determine the birth length, weight and brain size using head circumference and find out whether these correlate with the type of mutation.Method: Collection of data of 65 neon...

Background: Steroidogenic factor 1 (encoded by the NR5A1 gene) is a transcriptional regulator of genes involved in gonadal development and steroidogenesis. Mutations in NR5A1 are associated with a wide phenotypic spectrum in 46,XY individuals ranging from partial/complete gonadal dysgenesis or anorchia, ambiguous genitalia, hypospadias, to infertility. However, little is known about the longitudinal course of endocrine markers for Sertoli and Leydig cell func...

Introduction: The combination Down/Klinefelter syndrome was first described in 1959 by Ford. Its frequency is 0.4-0.9 / 10,000 newborn boys.Case presentation: A boy aged 5 y 4 m, born from a 2nd high-risk pregnancy (mother aged 44 with 1st pregnancy resulting in spontaneous abortion at 12 gestational weeks and with twice-established anemic syndrome) with (+) biochemical screening for Down syndrome. Birth was given via pl...

Background: Tamoxifen is a selective estrogen receptor modulator，administrated in girls with precocious puberty such as McCune-Albright syndrome.Objective: To explore the effect of tamoxifen on the linear growth of precocious pubertal female rats.Method: At 16-22 day of age, 16 precocious pubertal female rats(induced by 300 μg danazol s.c. at 5-day old), were randomized...

Autosomal dominant DICER1 mutations are among the causes of early-onset familial cancer. DICER1 mutation has been shown in pleuropulmonary blastomas as well as ovarian tumors, thyroid, parathyroid, pituitary, adrenocortical and testicular tumors. It is important to be aware of the risk for the development of other cancers in the follow-up of these cases.Cases: Case-1: Previously known to be healthy 8,5-year-old girl presented with compla...