Anauxetic dysplasia: A rare clinical entity

Abstract

Cartilage hair hypoplasia and anauxetic dysplasia spectrum constitute agroup of autosomal recessive disorders characterized by variable extent ofmetaphyseal to spondylometaepiphyseal involvement and various additionalclinical features. Within this group, anauxetic dysplasia represents the severeend of the skeletal spectrum. However, extraskeletal features includingimmunodeficiency, hematological abnormalities, and hair hypoplasia are absent,despite the severe skeletal involvement. This disorder is caused by mutationsin the gene encoding ribonuclease mitochondrial RNA-processing complex.We herein report on a patient with anauxetic dysplasia, who presented withsevere roto-scoliosis and skeletal findings requiring surgical intervention, andin whom a homozygous RMRP mutation was detected.