Lateral epicondylitis, also known as “Tennis Elbow”, is the most common overuse syndrome in the elbow. It is a tendinopathy injury involving the extensor muscles of the forearm. These muscles originate on the lateral epicondylar region of the distal humerus. In a lot of cases, the insertion of the extensor carpi radialis brevis is involved.
https://www.physio-pedia.com/Lateral_Epicondylitis
