An inborn error of cartilage collagen formation characterized by sensorineural hearing loss, enlarged epiphyses, skeletal dysplasia with disproportionately short limbs, vertebral body anomalies and a characteristic facies. The disease is otospondylomegaepiphyseal dysplasia (MONDO_0008975). Also known as: Nance-Insley syndrome, Nance-Sweeney chondrodysplasia, OSMED, chondrodystrophy with sensorineural deafness, otospondylmegaepiphyseal dysplasia.