Noncraniofacial manifestations of Crouzon's disease.

Although most interest centers on the craniofacial region in Crouzon's disease, noncraniofacial manifestations are important because they may complicate both diagnosis and management. A population of 59 patients with Crouzon's disease was reviewed to determine the frequency of these deformities. Stylohyoid ligament calcification (50%) and cervical spine (40%) and elbow (18%) abnormalities were the most common. Minor hand deformities (10%), other musculoskeletal deformities (7%), and visceral anomalies (7%) were also seen. Acanthosis nigricans was not present in this population. Recommendations are made for the assessment and management of Crouzon's disease with reference to these areas.