Smith mc cort syndrome

Three and a half year old boy with a rare Smith-McCort dysplasia is presented. Dyggve- Melchior-Clausen syndrome without mental retardation has clinical and radiographic findings similar to those of Smith-McCort dysplasia. Both of these syndromes are rare autosomal recessive disorders affecting skeletal development. The radiographic appearance of generalized platyspondyly with double-humped end-plates and the lace-like appearance of iliac crests are pathognomonic of these syndromes