Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are essentially clear . Increased opacity over the heart on the lateral view is likely due to atelectasis given lack of correlative finding on the frontal view . Prevented increased density in the retrocardiac region on the lateral view is likely due to calcific density within the left breast seen on prior CT . The cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are otherwise notable for clips over the left axilla .
    OUTPUT:
    
No acute cardiopulmonary process .