Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 views were obtained of the chest . Lungs are low in volume but clear aside from minimal basal scarring / atelectasis . Blunting of the costophrenic sulci bilaterally could reflect trace pleural effusions or pleural thickening . The heart is top - normal in size with normal mediastinal and hilar contours aside from a tortuous aorta .
    OUTPUT:
    
Low lung volumes without acute intrathoracic process .