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...