<unk>  is characterized by contractures of varying degrees, mainly involving the large joints, which are present in all affected children at birth. The contractures may be mild and tend to improve over time, but permanently bent fingers and toes (camptodactyly) are almost always present. In addition to long fingers and toes and a tall, slender body, people with<unk>  often have ears that appear to be crumpled, joint stiffness and underdeveloped muscles (muscular hypoplasia), and they may have curved spines (congenital kyphoscoliosis). If kyphoscoliosis is present, it often becomes progressively worse and may require surgery. In some cases, the blood vessel that distributes blood from the heart to the rest of the body (aorta) may be abnormally enlarged (aortic root dilatation).
Congenital contractural arachnodactyly
Brachydactyly type D
Congenital clasped thumb
Cenani–Lenz syndactylism
Congenital trigger thumb
Camptodactyly
Acrocephalosyndactylia
Synpolydactyly