Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . Heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . There is minimal atelectasis in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormalities visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .