Acrocephalosyndactyly, acrocephalopolysyndactyly, craniosynostosis, and dyscraniodysphalangeal syndromes.
Most cases are sporadic.
Instances of both autosomal dominant and autosomal recessive inheritances exist. Pathogenetic theories also include genetic translocation 2 . Faulty mesenchymal differentiation 3 with abnormally close ossification centers is evident embryologically. Choanal atresia, agenesis of the corpus callosum, hydrocephalus, congenital heart disease, and hypoplastic genitalia are frequently associated. Further classification is described below in the discussion section.