Torticollis in an infant caused by hereditary muscle aplasia.
Torticollis is a common condition presenting to the general or pediatric orthopedist. We describe the case of a child with severe torticollis caused by a hereditary unilateral absence of the sternocleidomastoid and trapezius muscles. Both his father and paternal grandfather had a forme fruste, with similar but milder findings. Electromyography and cross-sectional imaging were valuable in making the diagnosis. We believe this is the first reported case of hereditary unilateral muscle aplasia presenting as torticollis in an infant.
Adams, SB; Flynn, JM; Hosalkar, HS; Hunter, J; Finkel, R
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