Fig. 2

A patient with right congenital muscular torticollis. The patient has limited head rotation to the right but not to the left (a, b). There is limited head flexion to the left side but not to the right side (c, d). The patient’s head is tilted to the right under normal conditions (e). Ultrasound shows significantly thicker sternocleidomastoid muscle on the affected side than on the healthy side (f)