Absence of clavicle is a feature of:: (A) Cleidocranial dysplasia, (B) Multiple epiphyseal dysplasia, (C) Fibrous dysplasia, (D) Cranio-Metaphyseal dysplasia
Answer is A. a. Cleidocranial dysplasia(Ref: Nelson's 20/e p 618-619)Cleidocranial dysostosis, also called cleidocranial dysplasia or mutational dysostosis, is a hereditary congenital disorder, where there is delayed ossification of midline structures; Absent clavicles and delayed dentition.