What condition is commonly referred to as tennis elbow?

Tennis elbow, clinically known as lateral epicondylitis, is caused by the overuse of the forearm muscles and tendons, leading to pain around the outside of the elbow. This condition commonly affects individuals who participate in activities that involve repetitive arm motions, such as playing tennis, hence the name. The inflammation and pain occur where the tendons of the forearm muscles attach to the outer bony prominence of the elbow, known as the lateral epicondyle. Recognizing this link helps in effectively diagnosing and treating the condition, typically involving rest, ice, physical therapy, and sometimes braces to alleviate stress on the affected area. The other conditions mentioned do not relate specifically to the symptoms or causes associated with tennis elbow, thus underscoring the distinct nature of lateral epicondylitis as the correct answer.