Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . There is no pleural effusion or pneumothorax . No focal consolidation is seen . Perihilar vascular congestion is noted . Right lung base opacity is present . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
Low lung volumes . Right lung base opacity may represent atelectasis or infection in the appropriate clinical setting .