This document summarizes various pathologies and injuries that can affect the elbow and forearm, including ligament sprains, tendon ruptures, fractures, nerve injuries, and dislocations. It describes the etiology, symptoms, diagnostic process, and typical treatment approaches for conditions like medial and lateral epicondylitis, ulnar nerve entrapment, olecranon bursitis, and fractures of the humerus, ulna, and radius. Evaluation may involve imaging studies and special tests to localize the source of pain and weakness, while treatment focuses on reducing inflammation, protecting healing tissues, and restoring range of motion and strength.