system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The following is not a feature of Pierre – Robin syndrome –
assistant
The correct answer is  Pierre Robin syndrome consists of -

Micrognathia
The foreshortened floor of mouth
CHDs
Cleft palate or high arched palate
Mandibular hypoplasia (Micrognathia) 
Respiratory obstruction
Normal size tongue