Development of the Sternocostoclavicular Region -- Bones, Cartilages and Joints -- Normal Anatomy and Variants -- Bones and Cartilages -- Sternoclavicular Joints -- Biomechanics of the Sternocostoclavicular Region -- Biomechanics of Joints and Cartilages -- Imaging Techniques and Procedures -- Conventional Radiography and Tomography -- Computed Tomography -- Magnetic Resonance Imaging -- Ultrasonography -- Radionuclide Imaging -- Clinical Problems -- Congenital and Developmental Abnormalities -- Traumatic and Post-traumatic Disorders -- Seronegative Arthritis and Sternocostoclavicular Syndromes -- Predominant Osseous Inflammatory Lesions -- Other Rheumatic Inflammatory Disorders -- Degenerative Joint Disorders, Including Condensing Osteitis -- Infectious Disorders -- Primary Bone Tumours -- Other Malignant Disorders -- Miscellaneous Disorders.