&;Tennis elbow&; is characterized by

.tennis elbow(lateral epicondylitis) characterised by pain and tenderness at the lateral epicondyle of the humerus due to non-specific inflammation of the origin of extensor muscle of the forearm. clinical features-tenderness ,precisely localized to the lateral epicondyle of the humerus.pain is aggravated by putting the extensor tendons to a stretch (Ref: Essential ohopaedics, Maheshwari and Mhaskar,5th edition,pg no. 302)