Franceschetti–Klein syndrome

Franceschetti–Klein syndrome (also known as "Mandibulofacial dysostosis") is a syndrome that includes palpebral antimongoloid fissures, hypoplasia of the facial bones, macrostomia, vaulted palate, malformations of both the external and internal ear, buccal-auricular fistula, abnormal development of the neck with stretching of the cheeks, accessory facial fissures, and skeletal deformities.

It is sometimes equated with Treacher Collins syndrome.