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: Orthopaedics
In klippel - Fell syndrome, the patient has all of the following clinical features except - 
Select and explain. 
A. Low hair line, B. Bilateral Neck webbing, C. Bilateral shortness of steronomastoid muscles, D. Gross limitations of neck movements
C: Bilateral shortness of steronomastoid muscles
Answer: C: Bilateral shortness of steronomastoid muscles 
Explanation: Bilateral shortness of sternomastoid has not been mentioned as a feature of Klippel-Feil syndrome.