ESPE Abstracts

Background: Hyperthyroidism due to Grave’s disease (GD) in children has a peak incidence between 10 and 15 years of age. It is a rare but serious disorder that if uncontrolled can have serious adverse outcomes on growth and development as well as health. The incidence of GD is believed to be between 0.1 and 3 per 100 000 children in the general population with a prevalence of 1/10 000 children in the US. GD is rare under the age of 5 years.Objective...

Background: Hyperostosis-hyperphosphataemia syndrome (HHS) is a rare autosomal recessive metabolic disorder, characterized by recurrent painful swelling of long bones, periosteal new bone formation and cortical hyperostosis or intramedullary sclerosis, hyperphosphatemia and low intact fibroblast growth factor 23 (FGF23) protein levels. It is caused by mutations in two genes, N-acetylgalactosaminyltransferase 3 (GalNAc-transferase; GALNT3) and FGF23.<p class="abste...

Introduction: Hyperostosis-hyperphosphataemia syndrome (HHS) is a rare autosomal recessive condition caused by inactivating mutations in the GALNT3 gene, characterised by elevated serum phosphate and 1,25(OH)2 vitamin D, increased urinary tubular reabsorption of phosphate and hyperostosis of long bones.Case report: A 15-year-old boy (weight +1.05 SD; height −0.1 SD) with consanguineous parents of Palestinian descent, presented w...

Background: 17β-Hydroxysteroid dehydrogenase type 3 (17β-HSD3) deficiency is a rare cause of 46,XY sex reversal due to a defect in conversion of androstenedione to testosterone. It is autosomal recessively inherited and caused by mutations in 17HSD3.Objective and hypotheses: To define clinical and laboratory characteristics of 17β-HSD3 deficiency during neonatal period.Method: An 8-day-old newborn with female externa...

Background: Gonadal hyperfunction is the most frequent endocrine dysfunction in females with McCune–Albright syndrome (MAS), and precocious puberty (PP) is usually the first manifestation of MAS in children.Objective and hypotheses: The optimal pharmacologic treatment of PP in girls with MAS has not been yet identified and new therapeutic options like anti-estrogen should be taken under consideration especially in patients with extreme high estradio...

Background: 17-β-hydroxysteroid dehydrogenase 3 (17-β-HSD3) deficiency is a rare disorder of sex development due to impaired conversion of androstenedione to testosterone. Children with 46,XY karyotype often have female appearing external or ambiguous genitalia at birth. At the time of puberty, virilisation can occur. Therefore 46,XY patients with HSD17B3 gene defects should be raised as male.Objective and hypotheses: When a child with 46,XY ka...

Background: Complete androgen insensitivity syndrome (CAIS) is a condition that results in the complete inability of the cell to respond to androgens and falls within the category of 46,XY disorder of sex development (DSD). CAIS is characterized by female external genitalia in a 46,XY karyotype individual with normal testis development but undescended testes and unresponsiveness to age-appropriate level of androgens. The typical presentation is primary amenorrhea in an adolesc...

Background: Hypothyroidism is frequently associated with muscular disorders and sometimes with moderately elevated levels of muscle enzymes. On the other hand, neuromuscular manifestations are rarely the only symptoms/signs present. Kocher–Debré–Semelaigne syndrome is a myopathy of hypothyroidism in childhood characterized by muscular hypertrophy. Rhabdomyolysis due to hypothyroidism is very rare. A very high creatinine kinase level in the range seen with inflam...

Background: Hypothyroidism may be also a rare cause of acquired hypoceruloplasminemia. It has recently been underlined a role for thyroid hormone in the normal developmental regulation of ceruloplasmin (cp).Case presentation: A 3-year-old Caucasian girl was admitted to our clinic for recurrent pericarditis, fatigue and muscle weakness. Her family history was remarkable for Hashimoto’s thyroiditis and Graves disease. Her recent personal history was s...

Background: Serum sickness should be considered for the symptoms such as fever, arthralgia and urticaria existing 2–3 weeks after drug administration. Serum sickness is prototype of type 3 hypersensitivity reactions. Nephropathy and vasculitis may occur and main finding is hypocomplementemia. Several drugs such as antibiotics were reported as the reason of serum sickness disease.Objective and hypotheses: According to our knowledge, herein we report ...