Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . No focal consolidations concerning for pneumonia are identified . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable . There is no evidence of pneumomediastinum .
    OUTPUT:
    
No evidence of pneumomediastinum . No acute intrathoracic abnormalities identified .