Treacher Collins syndrome
Background
Treacher Collins syndrome: Mandibulo Dysostosis; Franceschetti-Klein
It is a genetic condition characterised by malformed cheek bones, chin, nose, and jaw.
Three similar conditions are: Nager which is a syndrome with similar mandibular dysostosis anomalies to Treacher Collins but with additional arm and digital anomalies: Aural atresia of the ears (congenital imperforation of the normal channel or pathological closure of the channel in the ears): First and second arch syndromes which are inclusive titles for developmental errors of the facial bones and which include Treacher Collins syndrome.