Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The aorta is tortuous . Streaky bibasilar opacities likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . The patient 's chin obscures the extreme lung apices . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild bibasilar atelectasis .