There is a cortical destruction of the sternoclavicular joint margins associated with adjacent bone marrow oedema and enhancement, as well as an irregular fluid collection within the joint space. Extensive inflammatory changes noted within the adjacent soft tissues, including muscular oedema, in particular of the pectoralis major and sternocleidomastoid muscles. Small soft tissue collection anterior to the clavicle 14 mm lateral to the joint. No soft tissue collections elsewhere. Multiple enlarged likely reactive left neck lymph nodes. The imaged neck vessels have preserved flow voids.