Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is accentuated as a result , appearing borderline enlarged . Mediastinal and hilar contours are normal . The pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes . No acute cardiopulmonary abnormality .