ESPE Abstracts

Background: Heterozygous loss-of-function HNF4A mutations are known to lead to monogenic diabetes, and in infants to macrosomia and hyperinsulinemic hypoglycemia. We are reporting a patient with a heterozygous HNF4A mutation (c.997C>T p.ARG333Cys) presenting with persistent ketotic hypoglycemia.Case report: In a 38 weeks’ gestation infant (birth weight 4.1 kg, pregnancy complicated by insulin-requiring gestational diabetes), hy...

Background: Von Hippel-Lindau (VHL) syndrome is a rare autosomal dominant genetic disorder characterized by retinal and central nervous system hemangioblastomas, pheochromocytomas and multiple cysts in the pancreas and kidneys, with increased risk of malignant degeneration.Case presentation: A 9-year-old boy with uncomplicated premorbid and family history presented with ice-cold hands and profuse night sweating on the he...

Background: Lipodystrophy syndromes comprise a large group of extremely rare diseases characterized by loss or dysfunction of adipose tissue. Due to their extreme rarity and variability, research in the field of lipodystrophy is difficult for single centres warranting larger co-operations.Methods: Therefore, the European Consortium of Lipodystrophies decided to found an international registry in 2016. This registry is ba...

Background: Von Hippel-Lindau (VHL) disease is an autosomal dominant disorder characterized by susceptibility to tumours including haemangioblastomas of retina and central nervous system, renal cell carcinoma and phaeochromocytomas. The disease is caused by mutations in the VHL tumour suppressor gene.Objective and hypotheses: We present an adolescent with VHL disease confirmed by genetic analysis which revealed the mutation p. A149P (PCC>GCC), which ...

Background: In non-Caucasian youth residing in low-income settings, risk of mortality and rates of diabetes complications are substantially higher and clinical phenotypes may be distinct.Objectives: To assess the clinical presentation, glycemic control, and chronic complications of diabetes in Haitian youth residing in Haiti.Methods: Retrospective review between 01/2013–03/2018 of youth 0-25 years with diabetes followed at a c...

Objective: To describe six cases of possible partial ectopic posterior pituitary gland (PEPP) seen on head magnetic resonance imaging (MRI) and their associated clinical and endocrinological manifestations.Methods: This is a single-center case series, from a tertiary public university health center in Montreal, Canada. Cases of children with possible PEPP were selected prospectively from 2005 to 2017, based on head MRI findings. Medical history, exam fi...

Background: Acquired Von Willebrand's syndrome (aVWS) associated with hypothyroidism is rare in children and more often diagnosed during the peripubertal period in the context of Hashimoto's thyroiditis.Case presentation: A 5-year-old girl was referred to the paediatric haematology unit for rectal bleeding, anaemia, and prolonged activated partial thromboplastin time. Her developmental and learning skills were no...

Background: Renal tubular acidosis (RTA) is an uncommon cause of growth failure and rickets. In Haiti, diagnostic evaluation and management is challenged by limited access to comprehensive diagnostic tools.Case presentation: An 8-year-old Haitian girl was evaluated at an academic referral center for bony deformations and bone pain, progressive over the previous six years. Her 2.5 year-old sister presented similar symptoms, associated with dental caries a...

Background: Genetic females with congenital adrenal hyperplasia (CAH) from severe 21-hydroxylase deficiency may be declared at birth as cryptorchid boys. Neonatal salt wasting leads to early reassignment but in its absence, the condition may go unrecognized.Case presentation: A term newborn with non-palpable gonads but a penile urethra was declared as boy. At 4.8 years, the child presented with sexual precocity. Height was +2.3 S.D., penil...

In children, autoimmune thyroiditis is often diagnosed with signs and symptoms such as goiter, short stature, and constipation. Delayed diagnosis of hypothyroidism may result in atypical signs and symptoms at presentation, depending on the severity of hypothyroidism. Von Willebrand disease (vWD) is the most common bleeding disorder caused by the quantitative or qualitative deficiency of von Willebrand factor (vWF). Acquired vWD (avWD) is a disorder characterized by low levels ...