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Figure 1 | BMC Musculoskeletal Disorders

Figure 1

From: The value of high-frequency and color Doppler ultrasonography in diagnosing congenital muscular torticollis

Figure 1

A. A vertical section of the sternocleidomastoid muscle (SCM) in a patient with early-stage muscular torticollis. B. Vertical section of the SCM of the normal side. Thickening of the affected SCM is apparent, and there are hypoechoic signals without a clear boundary. The boundary between muscular fibers is not clear, with a disappearance of the inner muscle texture.

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