Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show linear platelike atelectasis in the left lower lobe . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . No pleural effusion or pneumothorax is present . Surgical clips are noted in the left axilla .
    OUTPUT:
    
No acute intrathoracic process .