Hypoplasia of the left first rib in a child with Down's syndrome and an endocardial cushion defect

Abstract

A case is reported of a child with Down's syndrome having a hypoplastic left first rib and an endocardial cushion defect. To our knowledge, a similar entity has not been reported.Congenital anomalies of the ribs have been an area of interest for the thoracic surgeon, orthopaedic surgeon, paediatrician, and radiologist. Fusion of adjacent ribs and bifid ribs are a common radiographic finding, but absence or rudimentary formation occurs less frequently (Ehrenhaft, Rossi, and Lawrence, 1966). The incidence of absence and rudimentary formation of lReprint requests to: