Air crescent (meniscus) sign Anterior sulcus (double diaphragm) sign Apical cap sign Bulging fissure sign Cervicothoracic sign Continuous diaphragm sign Double contour sign Double lesion sign Extrapleural sign Fleischner's sign Gloved-finger sign Golden S Sign Hampton's hump Hilum overlay sign Incomplete border sign Melting sign Open bronchus sign Signet ring sign Silhouette sign Westermark's sign Book traversal links for Common Radiographic Signs ‹ Where is the azygos vein seen on a frontal CXR? Up Air crescent (meniscus) sign ›