In Klippel-Feil syndrome, the patient has all of the following clinical features, EXCEPT:
Bilateral shoness of sternomastoid is not included in Klippel-Feil syndrome. Ref:Harrison's Principles of Internal Medicine, 14th Edition, Page 2120 and 15th Edition, Page 2174
Low hair line
Bilateral Neck webbing
Bilateral shoness of sterno mastoid muscles
Gross limitations of neck movements