ESPE Abstracts

Background: We presented 20-year follow-up of two patients with 11β- hydroxylase deficiency, one of them has novel mutation.Case 1: The male patient was diagnosed at the age of 9-months. He presented with penil growth and pubic hair. At diagnosis blood pressure was normal, his hormonal profile was distinctive of 11β-OHD, with elevated serum levels of 11-deoxycortisol (DOC 134 ng/ml, N: 0–1.18). Hydrocortisone was introduced immediately aft...

Introduction: Physicians often treat patients with high doses of vitamin D for various ailments and on occasion the prescribed doses far exceed the requirements of the patients. We present here two infants with vitamin D intoxication.Case presentation: A 6 month-girl child was brought to the hospital with complaints of persistent vomiting and refusal to feed. She was clinically dehydrated. She was administered 150.000 IU every day for 8 days. Serum calci...

Background: 5α-reductase-deficiency is an autosomal recessive disorder with clinical spectrum ranges from a male phenotype with hypospadias to a female phenotype. Many different mutations of SRD5A2 gene has been described in affected patients and clinical signs can vary depending on the degree of enzyme deficiency.Case presentation: 14-years-old girl admitted to our clinic because of feeling as a boy since 8-years-old. Parents were first degree cous...

Background: Bisphosphonate treatment for bone fragility has expanded beyond the children with osteogenesis imperfecta (OI) to those with other causes of low bone mass. Pamidronate is effective such as Paget’s disease, hypercalcaemia of malignancy, osteolytic bone metastasis, steroid-induced osteoporosis and idiopathic osteoporosis.Objective and hypotheses: The experience with bisphosphonates treatment other than OI in children is limited although th...

Background: Glucocorticoids are one of the most widely used drugs in clinical practice. Inappropriate use can result in secondary adrenal insufficiency. Adrenal insufficiency can be an occult cause of hypercalcaemia.Case presentation: A 3-months-old boy admitted for puffiness of the face, increase in weight. It was revealed that the patient was admitted to a hospital 2 months ago and was diagnosed to have congenital cataract and operated. The patient was...

Background: Premature adrenarche (PA) is defined as the appearance of pubic and/or axillary hair in girls younger than 8 years old and caused by the rise in adrenal androgen production including dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), and androstenedione (A4). DHEAS≥40 µg/dL is accepted as the biochemical marker of adrenarche. However, adrenals also produce 11-oxygenated C19 androgens such as 11β-hydroxyandrostene...

Background: DEAH-box protein DHX37, encodes an RNA helicase, is involved in ribosome biogenesis. Monoallelic mutations in DHX37 gene have recently been identified in 46,XY differences/disorders of sex development (DSD) patients with nonsyndromic gonadal dysgenesis as well as testicular regression, while biallelic mutations have been associated with microcephaly and structural brain abnormalities. Here, we present a patient with penoscrotal hypospadias and bil...

Background: Low-dose adrenocorticotropic hormone stimulation test (LDST) is widely used to assess patients for adrenal insufficiency. However, the predictive power of basal cortisol for the performance of LDST is not clear.Objective: To determine the appropriate basal serum cortisol cutt-off values that predict a positive or negative LDST.Design: A single-centre retrospective study...

Background: Hypoparathyroidism (HP) and pseudohypoparathyroidism (PHP) are conditions associated with basal ganglia calcification (BGC) which is thought to be caused by high serum calcium-phosphorus product and inadequate management of hypocalcemia. Novel mechanisms have recently been proposed for phosphate sensing and transport. However, the exact pathophysiology of BGC remains to be elucidated.Objective: To gain furthe...

Background: Hereditary hypophosphatemia (HH), is a rare condition related to decreased renal tubular phosphate reabsorption. Although X-linked hypophosphatemia (PHEX mutation) is the most frequent cause of HH, recent advances in the next-generation sequencing (NGS) techniques enable the identification of various genetic etiologies. Our study aims to determine the molecular etiology of patients with hypophosphatemia and to identify new candidate genes....