Spondyloepiphyseal dysplasia tarda: report of one case

We report the clinical assessment and mutational analysis of one boy with spondyloepiphyseal dysplasia tarda (SEDT). His short stature manifested between age 5 and 10. As his growth slowed, his height fell from the mean for his age at 5 to the 2nd percentile at age 10.5. His bone age was retarded at 8 years, thus his predicted adult height was 164.9 cm, not far from his target height of 170cm. However, upon physical examination, he presented markedly short trunk. We suspected SEDT and X-ray finding of his spine supported this diagnosis. We performed DNA analysis on the SEDL gene and detected a 5-bp deletion in exon 5 which has been previously reported by Mumm et al. and Gedeon et al. in cases of SEDT.