Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal to mildly enlarged . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Elevation of the right hemidiaphragm is again noted . Lungs are mildly hypoinflated with crowding of bronchovascular structures , but no concerning focal consolidation . Surgical clips overlying the upper abdomen are seen on the lateral view . No displaced rib fractures are noted .
    OUTPUT:
    
Low lung volumes , but no acute cardiopulmonary process .