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Figures
Fig. 1: Lateral and anterior views showing the patient's severe hypertrophy of the right trapezius muscle (left panel), wasting of the sternocleidomastoid muscles, and bilateral dystonia and hypertrophy of the trapezius muscles (right panel).
Fig. 2: The path of the (paired) spinal accessory nerve as it emerges from the foramen magnum, and (left panel) the muscles it innervates.. Photo by: Lianne Friesen and Nicholas Woolridge