ESPE Abstracts

Background: Hyperthyroidism is rare in childhood and adolescence and Graves’ disease accounts for approximately 96% of pediatric cases of thyrotoxicosis.Case Report: A 12-year-old girl, with no relevant family or personal history, was examinated for a thyroid mass noticed a few days before. She also reported excessive sweating of the hands and mild psychomotor agitation. Clinical examination revealed, in addition to the right thyroid mass, other sig...

Background: Recently congenital hypothyroidism (CH) is increased,particularly mild forms. Current guidelines recommend initial levothyroxine (LT4) dose of 10–15 mcg/kg per day as soon as possible, if diagnosis is confirmed by serum test, even if FT4 concentration is normal and venous TSH concentration is >20 microUI/ml.Objective and hypotheses: The aim of our study was to evaluate the initial LT4 dose in newborn with congenital hypothyroidism, n...

Background: Klinefelter syndrome (KS) is a genetic disorder consisting in a variable number of additional X chromosomes in a male individual. KS patients can rarely develop peripheral precocious puberty (PPP) caused by extragonadal germ cell cancers (eGCCs) producing hormones with androgenic activity. KS patients are at higher risk for eGCC when compared to the healthy populationCase report: We report the case of M., a 8...

Background: Multiple factors may affect intrauterine growth leading to birth of children small for gestational age (SGA). The impact of subtle genetic alterations on both pre and post-natal growth is still largely unknown.Objective and Hypotheses: The aim of this study was to investigate the prevalence of CNVs in a cohort of SGA children with persistent short stature.Subjects and Methods</s...

Pseudohypoparathyroidism (PHP) is a rare disease characterized by hormone resistance due to defect of the α subunit of the stimulatory G protein (Gsα). Hypocalcemia due to parathyroid hormone (PTH) resistance is common. PHP1a determined by maternal LoF mutations in GNAS, presents severe obesity as early feature with increased risk of developing metabolic derangement during life. The aim of the study was to evaluate the metabolic alteration in a population of...

Background: Ectopic ACTH-producing tumors rarely occur in children, with <1% of all adolescents with Cushing Syndrome (CS). Many cases of ACTH-secreting ectopic neuroendocrine tumors (NETs) are reported in literature. In most patients, tumors secrete corticotropin-like peptides and/or corticotropin releasing factor (CRF)-like peptide, which stimulate cortisol hyperproduction.Background: Ectopic ACTH-producing tumors r...

Early identification of monogenic obesity, a rare condition, is quite challenging for pediatricians. Src-homology-2 (SH2) B adapter protein 1 (SH2B1) is an important component in the leptin-melanocortin pathway and it is found to play an important role in leptin and insulin signaling. In humans a rare deletion of a 220-kb region on chromosome 16p11.2 encompassing approximately 9 genes, including the SH2B1 gene, is associated with a highly penetrant form of isolated severe earl...

Background: Terminal or interstitial deletions of Xp (Xp22.2→Xpter) in males have been recognized as a cause of contiguous gene syndromes showing variable association of apparently unrelated clinical manifestations such as Leri-Weill dyschondrosteosis (SHOX), chondrodysplasia punctata (ARSE), mental retardation (NLGN4), ichthyosis (STS), Kallmann syndrome (KAL1), and ocular albinism (GPR143).Case reports: We report ...

Introduction: We report a series of three siblings, two girls and one boy, diagnosed with Central Precocious Puberty (CPP) respectively at the age of 5.66, 6.67 and 8.5 years, carrying a mutation in the gene encoding the makorin RING finger protein 3 (MKRN3), usually responsible for the development of familial CPP.Methods: We diagnosed CPP in all the patients by performing a GnRH test. We also dosed basal levels of LH, F...

Background: Denosumab is a new class of antiresorptive medication and a fully human monoclonal antibody of the IgG2 immunoglobulin isotype to RANKL. In fact, it binds with high affinity and specificity to RANKL, mimicking the inhibitory effects of Osteoprotegerin, resulting in rapid suppression of bone resorption. Denosumab is commonly used also in pediatric age for treatment of osteoporosis, malignancies, and other benign bone lesions, such as fibrous dysplas...