Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is top normal . The mediastinal and hilar contours are unremarkable . Crowding of the bronchovascular structures is noted , but no overt pulmonary edema is present . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . No radiopaque foreign bodies are identified .
    OUTPUT:
    
Low lung volumes with no acute cardiopulmonary abnormality . No radiopaque foreign bodies demonstrated .