Spondyloepiphyseal dysplasia associated with progressive arthropathy. An unusual disorder mimicking juvenile rheumatoid arthritis.

A family is presented with three affected siblings suffering from a rare form of spondyloepiphyseal dysplasia with progressive arthropathy affecting most joints of the body except for the craniofacial skeleton. This syndrome, probably of autosomal recessive inheritance, clinically presents diffuse and chronic joint involvement and should be differentiated from juvenile rheumatoid arthritis and other rheumatic disorders.