The frontal chest x-ray shows a lytic lesion in the lateral end of the clavicle; the lung fields are clear.

A systematic approach to chest x-ray interpretation that is often used is ABCDEFGH:

• Airway: trachea and bronchi
• Bones: rib cage, clavicles, and the upper end of the humerus
• Cardiac shadow
• Diaphragm
• Effusion
• Fields (lung)
• Gastric air bubble
• Hilar area