RECONSTRUCTIVE TREATMENT OF TREACHER COLLINS SYNDROME

<正> Treacher Collins syndrome is caused by the maldevelopment of the first and second branchial arches. It is characterized by mandibulofacial dysostosis and has the following features: outward and downward obliquity of lateral canthi, colobomas of the lateral 1/3 of. the lower eyelids, flattening of malar bone, absence of zygomatic arches, a small and receding chin, sometimes accomapanied with small ears and cleft palate. In 8 cases, the authors reconstructed malar hypoplasia and micrognathia with bone graft and corrected the palpebral fissures. The results of this procedure are satisfactory.