This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'All of the following are featured of Treacher Collins syndrome, except \nSelect and explain. \nA. Anti-mongoloid palpebral fissure, B. Hypoplasia of malar bones and mandible, C. Macrostomia, high palate, D. Osteomas of bone', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Treacher Collins syndrome or mandibulofacial dysostosis is a group of closely related defects of the head and face, characterised by\n\nAntimongoloid palpebral fissures with a coloboma of the outer portion of the lower eyelid\nHypoplasia of the malar bones and mandible \nMalformation of the external ear\nMacrostomia, high palate and malocclusion of teeth\nBlind fistulas between angles of ears and angles of the mouth', 'role': 'assistant'}]