title: Dyggve-Melchior-Clausen syndrome without mental retardation (Smith-McCort dysplasia).
abstract: Radiographic features of a 15-year-old boy with Smith-McCort dysplasia are 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 and distinctive of these syndromes. Diagnostic features of these diseases are compared with others like Morquio's disease and spondylometaphyseal dysplasia, which may have similar vertebral changes, and are discussed in the light of the literature.
authors.affiliation: Department of Radiology, Ondokuz Mayis University School of Medicine, Samsun, Turkey. ilkaykoray@hotmail.com
authors.forename: Ilkay Koray
authors.initials: IK
authors.lastname: Bayrak
authors.forename: Mehmet Selim
authors.initials: MS
authors.lastname: Nural
authors.forename: H Bariş
authors.initials: HB
authors.lastname: Diren
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005121:Extremities / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D010009:Osteochondrodysplasias / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D013577:Syndrome