[Soft tissue swelling of the sternoclavicular joint].

A 73-year-old woman presented with a swelling of the right sternoclavicular joint the size of a hens egg which had persisted for 2 years. After a corticosteroid injection 8 months previously the swelling was asymptomatic. The magnetic resonance imaging (MRI) scan showed synovialitis of the sternoclavicular joint with edema of the adjacent bone. The constellation is indicative of Tietze syndrome, an inflammation of costochondral junctions of the ribs or chondrosternal joints. The treatment is usually directed at pain relief and benign conditions are often self-limiting.