ESPE Abstracts

Introduction: Leri-Weill dyschondrosteosis (LWD) is caused by haploinsufficiency of the SHOX gene, located in the pseudoautosomal region (PAR 1) of the short arm of the X and Y chromosomes. The gene is expressed in highest levels in bone tissue and its product likely controls the chondrocyte apoptosis. Deletions and duplications are most frequent, point mutations are responsible for minority of the cases. The main clinical symptoms of LWD include disproportionate short stature...

Introduction: Aggrecan, encoded by the ACAN gene, is an important component in the cartilage extracellular matrix. Mutations in the ACAN gene have been associated with idiopathic and familial short stature in the recent years. Bone age (BA) is often advanced, although it can be delayed or normal. Patients can have dysmorphic features like broad forehead, midfacial hypoplasia, prognathism, posteriorly rotated ears, broad and short thumbs. Bone and joint problem...

Background: Activity dependent neuroprotective protein (ADNP) syndrome (OMIM: 615873), also known as Helsmoortel Van Der Aa syndrome (HVDAS), is an autosomal dominant monogenic neurodevelopmental disorder caused by ADNP gene mutations. It is characterized with impaired learning and motor skills, hypotonia, dysmorphic features, organ anomalies, behavioral and psychiatric problems.Aim: To present a female patient with HVDA...

Background: Rahman syndrome (RMNS) is an autosomal dominant overgrowth-intellectual disability syndrome caused by heterozygous mutations in H1-4 gene. Other frequent features reported in RMNS patients include: facial dimorphism, joint hypermobility, hypotonia, kyphoscoliosis, congenital heart defect, abnormal MRI image of brain and behaviour problems.Case presentation: We report a 11-year-old girl born from 3rd</sup...