KLIPPEL FEIL SYNDROME
It is a heterogeneous group of disorders in which the common finding is fusion of at least 2 cervical segments.
The classical clinical triad is low hairline, short neck and limited cervical ROM which is found in less than 50% of cases.
Etiology is unknown.
It is associated with other anomalies some of which can be fatal so proper clinical exam and investigations have to be done to search for them.