Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly reduced . Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities . Surgical clips are noted within the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .