Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is normal . Mediastinal and hilar contours are unremarkable . Minimal linear opacity within the left lung base likely reflects subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities . Several clips are noted within the right upper quadrant of the abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .