ESPE Abstracts

Introduction: The heterozygous activating mutations in the KCNJ11 and ABCC8 are the commonest causes of permanent neonatal diabetes mellitus (PNDM). The most severe clinical form of NDM is DEND syndrome. Besides diabetes mellitus such patients show severe developmental delay, hypotonia and therapy-resistant epilepsy. To our knowledge only some cases of DEND syndrome due to ABCC8 mutations are sulfonylurea-responsive. Here we report case of DEND syndrome due t...

Introduction: Beckwith-Wiedemann Syndrome (BWS) is a rare genetic disorder that could be associated with embryonal tumours. Genotype based categorisation of patients enables better screening strategies. We present a patient with BWS who developed atypical congenital hepatoblastoma and atypical Wilms tumour in infancy.Case Report: A 2 day old infant was referred with recurrent hypoglycaemia and high intravenous glucose requirement [>12 mg/kg/min]. He ...

Case Report: A 13-year old male presented to a dental office for evaluation of prognathism. After evaluation, his dentist referred him to pediatric endocrinology. He had no significant past medical history. He denied any signs or symptoms associated with any hormonal deficit or excess, as well as headaches or visual disturbances. Denied excessive growth of hands or feet. Parents reported that he had been having pubic and axillary hair, mild acne, and significant growth for the...

Background: Chimerism is the phenomenon of two or more genetically distinct cell lines (originating from different zygotes) in the same individual. In situations when the sex of the fertilised eggs is disparate, it can lead to intersex phenotypes.Objective and hypotheses: We report a case of ovotesticular disorder of sexual development with chimerism resulting from a twin pregnancy (not involving assisted reproductive technologies).<p class="abstext"...

Introduction: X-linked hypophosphataemic rickets (XLH), due to mutations in the PHEX (Phosphate-regulating Endopeptidase homolog; X-linked) gene, causes reduced bone and dentin mineralisation and decreased renal phosphate reabsorption. Mosaic PHEX mutations are reported only in a few case reports.We report three male cases, with mosaic pathogenic PHEX variants, showing importance of considering this in the diagnosis of XLH.Case 1 pre...

Introduction: Spinal muscular atrophy (SMA) is an autosomal recessive neurodegenerative disease. In 2016, nusinersen (Spinraza) was approved by the FDA. The first AAV9-based gene therapy (Zolgensma), was approved by the FDA (2019) for the treatment of infants with SMA. We report an SMA case with recurrent hypoglycemic events after gene therapy.Case Report: A 22 months old boy, with SMA type 1 was born at term by CS for fetal bradycardia....

Introduction: Extreme hypertriglyceridaemia is uncommon in the paediatric population but can have devastating consequences. It can lead to acute pancreatitis, cutaneous eruptive xanthomas and lipaemia retinalis. Severe hypertriglyceridemia likely accounts for 1-10% of acute pancreatitis cases in adults but there is limited data in children. We report a case of new-onset type 1 diabetes mellitus (T1DM) presenting in diabetic ketoacidosis (DKA) with acute pancre...

Introduction: Empty Sella (ES) is a radiological finding which is due to herniation of subarachnoid space into sella turcica. It’s partial, when <50% space is filled with cerebrospinal fluid (CSF) and complete, when CSF fills >50% with pituitary gland flattened to <=2mm. Actual occurrence is debatable and often noted incidentally during magnetic resonance imaging (MRI). However, it can cause pituitary hormone (PH) dysfunctions, most commonly g...

CHOPS syndrome is a rare monogenic disorder caused by heterozygous gain-of-function variants in AFF4. The 13 patients reported to date share a highly recognizable phenotype: Coarse face, Cognitive impairment, Heart defects, Obesity, Pulmonary involvement, Short stature and Skeletal dysplasia. AFF4 encodes a scaffold protein involved in transcriptional elongation and critical for gene expression regulation during embryogenesis. Notably, it appears to regulate adipogenic differe...

Introduction: ABCD syndrome is characterized by hypercalcemia, hypercalciuria, nephrocalcinosis, and renal impairment, generally under 4 years old. This is a rare cause of pediatric hypercalcemia with only 7 cases published, but it is believed to be underdiagnosed. The suspected mechanism would be associated with overexpression of transient receptor potential channels (TRP) that modulate intestinal absorption of calcium, since TRP-M2 is encoded on chromosome 2...