Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Lung volumes are low , exaggerating mild cardiomegaly . No focal consolidation , pleural effusion or pneumothorax . Osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
Low lung volumes , exaggerating mild cardiomegaly .