Figure 2From: The value of high-frequency and color Doppler ultrasonography in diagnosing congenital muscular torticollis A. Cross-section of the sternocleidomastoid muscle (SCM) in a patient with early-stage muscular torticollis. B. Cross-section of the SCM of the normal side. Thickening of the affected SCM is apparent, and there are hypoechoic signals with a clear boundary and disappearance of the inner muscle texture.Back to article page