Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires as well as a stent within a bypass graft again noted . Cardiomediastinal silhouette is stable with atherosclerotic calcifications along the unfolded thoracic aorta . Lungs are clear . No pleural effusion or pneumothorax . Fixation hardware projects over the right humerus .
    OUTPUT:
    
No acute intrathoracic process .