Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are unremarkable . There is mild bibasilar atelectasis . No focal consolidations concerning for pneumonia are identified . There is no large pleural effusion or pneumothorax . Note is made of possible minimal thickening , less likely very trace fluid within the minor fissure .
    OUTPUT:
    
No acute intrathoracic abnormalities identified .