Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bronchovascular markings are accentuated by the very low lung volumes . Bibasilar opacities are likely due to atelectasis . No overt pulmonary edema or pneumothorax . Heart size is within the upper limits of normal . Left subclavian line terminates in the mid-SVC .
    OUTPUT:
    
No acute intra-pulmonary process . Bibasilar opacities likely represent atelectasis .