Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is top normal . Mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . Apart from subsegmental atelectasis in the right mid lung field and left lung base , lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .