Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Left chest wall pacing device seen with leads in the right atrium and right ventricular apex . The lungs are clear of consolidation , effusion or pneumothorax . Linear opacities at the left costophrenic angle are suggestive of atelectasis . Cardiomediastinal silhouette is within normal limits . Median sternotomy wires and mediastinal clips again noted . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .