Crouzon Syndrome

Crouzon syndrome is a disorder characterized by early fusion of certain skull bones (craniosynostosis). This prevents normal growth of the skull, which can affect the shape of the head and face. Signs and symptoms of Crouzon syndrome may include wide-set, bulging eyes; strabismus (misalignment of the eyes); a small, "beak-shaped" nose; and an underdeveloped upper jaw. Other features may include dental problems, hearing loss, and/or cleft lip and palate. The severity of signs and symptoms can vary among affected people, even within a family. Intelligence is usually normal, but intellectual disability may be present. Crouzon syndrome is caused by changes (mutations) in the FGFR2 gene and is inherited in an autosomal dominant manner. Treatment may involve surgeries to prevent complications, improve function, and aid in healthy psychosocial development.