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A 26-year-old male professional footballer with grade I distal hamstring strain. (a) Axial fat-saturated proton density-weighted image demonstrating high signal at the myofascial surface of the long head of biceps muscle (arrow). (b) Axial B050 diffusion-weighted image and (c) apparent diffusion coefficient mapped axial image obtained at the same level showing high signal within the periphery of the muscle (arrow).
