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Ultrasound examination of achilles tendon. A: Longitudinal view, left ankle posterior aspect. Complete tear of Achilles tendon with retraction. A 54-year old man felt a sudden sharp pain in the left Achilles tendon while running. Physical examination revealed absence of plantar flexion and a positive Thompson test; B: Longitudinal view. Right: tear of Achilles tendon. Left: Normal Achilles tendon.
