Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . No focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac is top - normal in size , likely exaggerated by low lung volumes . Mediastinal contours are unremarkable . No pulmonary edema is seen .
    OUTPUT:
    
Low lung volumes . Clear lungs .