<unk>  (or rib<unk>  is a radiologic sign where the surface of the rib is deformed. It can be characterized as unilateral or bilateral, and should be differentiated between affecting the upper (superior) or lower (inferior) surface of the rib.<unk>  on<unk>  from a cardiologic cause
Notching of the ribs
Subcutaneous emphysema
Tracheobronchomegaly
Bronchophony
Abdominal thrusts
Mediastinal shift
Tracheal deviation
Pleural thickening