<unk>  <unk> , also known as Beals-Hecht syndrome, is a rare autosomal dominant<unk>  connective tissue disorder. As with Marfan syndrome, people with<unk>  typically have an arm span that is greater than their height and very long fingers and toes. However, Beals and Hecht discovered in 1972 that, unlike Marfan's,<unk>  is caused by mutations to the fibrillin-2 (FBN2) gene rather than the fibrillin-1 (FBN1) gene.
Congenital contractural arachnodactyly
Brachydactyly type D
Congenital clasped thumb
Cenani–Lenz syndactylism
Congenital trigger thumb
Camptodactyly
Acrocephalosyndactylia
Synpolydactyly