Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is extensive bilateral subcutaneous air . There is also obscuration of bilateral hemidiaphragms , left greater right , suggestive of bibasilar atelectasis / partial collapse . Otherwise , the upper lung fields are clear . The heart appears borderline enlarged . No pneumothorax is identified .
    OUTPUT:
    
Extensive amount of air in the subcutaneous tissues . There is also evidence of bibasilar atelectasis / partial collapse . No pneumothorax is identified .