Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wire its and mediastinal clips are again seen . Heart size is normal . Mediastinal contour is unchanged with an unfolded thoracic aorta . There is no focal consolidation , large effusion or pneumothorax . No signs of congestion or edema . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .