Case 101


A 25-year-old otherwise healthy male patient complains of right lateral knee pain for two weeks. He is a regular runner and reports having increased his training intensity during the last month. He denies any kind of trauma or injuries at the time of symptoms onset. No walking abnormalities or mechanical axis deviation are observed. On palpation, there is tenderness over the lateral femoral epicondyle at 30 degrees of knee flexion. There is no joint effusion.

Based on the images and clinical history, which is the most likely diagnosis?

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