Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiomediastinal silhouette and hilar contours are normal . Incidentally , there is suggestion of possible apical pleural thickening on the left . The remainder of the pleural surfaces are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Normal lung volumes without evidence of pneumonia .