Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no evidence for free intraperitoneal air under the diaphragms . The lung fields demonstrate no focal consolidation , pleural effusion , or pneumothorax . Lung volumes are low . Linear density projecting over the lateral left mid lung may represent atelectasis or scarring . Aortic calcifications are present .
    OUTPUT:
    
No free intraperitoneal air .