Inflammation and the build up of fluid within the lining of the shoulder joint is called synovitis. The most common symptom is pain with motion and at rest. Sampling the fluid can be done to confirm the diagnosis of synovitis. Treatment may include cortisone injections and anti-inflammatory medications. In extreme cases arthroscopic surgery may be done to remove the infected synovium. If synovitis of the shoulder is left untreated, patients may be faced with cartilage, ligament, tendon, and bone damage.
