ESPE Abstracts

Introduction: The co-occurrence of Turner Syndrome (TS) and Mayer-Rokitansky-Kuster-Hauser Syndrome (MRKHS) has been rarely described in literature. The resulting clinical picture includes congenital aplasia of the uterus and of the upper two-thirds of the vagina and ovarian dysgenesis.Case Report: We hereby report the case of a 14-year-old girl referred to our endocrine outpatient clinic for pubertal delay. Her previous medical history ...

Background: Pubertal induction in girls with hypogonadism through estrogen replacement therapy (ERT) aims at the development of secondary sexual characteristics, cognitive functions, uterine growth and maturation, bone mass accrual and linear growth. To date, the best induction regimen, capable of assuring both physiological gradual progression through Tanner stages and effective uterine development, is still to be established.Patients a...

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...

A 17-year-old girl comes to our attention for a second opinion due to reduced bone mineralization. She has a family history of osteogenesis imperfecta: her mother and younger sister have a COL1A1 mutation. The girl never had any fractures, but considering the familiarity it was carried out a DEXA, showing a Z-score of -1.9 SDS at the femoral level and -2 SDS at the lumbar level; no fractures visible in the spine X-ray. The genetic analysis of COL1A1 was carried out, which came...

Background: Multiple endocrine neoplasia type 2B is a rare genetic syndrome caused by germline mutations in the RET proto-oncogene. Approximately 75% of MEN2B cases are sporadic and caused by de novo RET mutations, whereas 25% of cases occurs in families with an autosomal dominant inheritance. The most common RET mutation found in 95% of MEN2B patients is the substitution of the amino-acid threonine for methionine at codon 918. In infants with de novo mutation...

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: There are two liquid formulations of Levothyroxine currently in use in Italy: one containing ethanol (Tirosint®) and the other ethanol-free (Tifactor®). The aim of our study is to compare the two liquid formulations of Levothyroxine in the first six months of treatment in newborns affected by Congenital Hypothyroidism (CH).Methods: We retrospectively enrolled 156 patients treated with the ethanol-cont...

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...