Air Bronchogram

Bulging Fissure

Crossing Midline

Comet tail sign

Silhouette Sign

Pulmonary Artery Overlay Sign

Double Lesion Sign

Halo Sign

Sail Sign

Bowing Sign

Extrapleural Sign

Inlet to Outlet Sign

Double Density

Tracheo-Esophageal Stripe

Hampton's Hump

Paravertebral Line

Open bronchus sign