Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable view of the chest demonstrates low lung volumes . There is no pleural effusion , focal consolidation or pneumothorax . The hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
Low lung volumes . Clear lungs .