Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Compared to prior , the lung volumes are low . Mild increased opacity in the left lower lobe is thought to be due to atelectasis . There is no effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are notable for multi - level upper thoracic laminectomies . No free air below the diaphragm is seen . Metallic clips are seen overlying the soft tissues of the lower face or neck .
    OUTPUT:
    
No acute cardiopulmonary process .