Normal shoulder: AP view, with key anatomy and review lines highlighted. A, acromion; Cl, clavicle; Co, coracoid process; G, glenoid; GT, greater tuberosity; HH, humeral head; LT, lesser tuberosity.
Normal shoulder: lateral (or Y) view. Cl, clavicle; Co, coracoid process; G, glenoid; HH, humeral head; S, scapula.