Lateral elbow pain is one of the most common sources of medical consultation for non-traumatic elbow disorders. The most frequent diagnosis is the tendinous disorder known as lateral epicondylitis (LE) or ‘tennis elbow’. However there are many pathological conditions that may mimic LE such as intra-articular plica, osteochondritis dissecans (OCD), radiocapitellar arthritis or posterolateral rotatory instability.1