The peroneus quartus is one of a variety of described accessory peroneal muscles, most commonly an incidental finding on MRI or ultrasound of the ankle. We present the only described… Click to show full abstract
The peroneus quartus is one of a variety of described accessory peroneal muscles, most commonly an incidental finding on MRI or ultrasound of the ankle. We present the only described case in the literature of a peroneus quartus tendon rupture in a professional rugby player as well as the MRI findings.
               
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