CLINICAL CLASSIFICATION OF RADIAL RAY DEFECTS AND RESEARCH INTO ETIOPATHOGENESIS

Abstract

Objective: Radial ray defects (RRDs) are the most common congenital abnormality of the upper extremities, with a prevalence of 1:30,000. 70% of RRDs are syndromic or accompanied by additional malformations, whereas 30% are in isolated form. Definitive diagnosis is critical for follow-up and provides an opportunity for prenatal diagnosis. The aim of this study was to provide a guide for the differential diagnosis of patients with RRD via contributing to their molecular diagnosis by constructing a next-generation sequencing (NGS) gene-panel test.