Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are reduced . This limits the assessment of the lung bases where patchy opacities could reflect atelectasis but infection is not excluded . The lateral view suggests no focal consolidation however . Heart size is top normal . Mediastinal and hilar contours are within normal limits . There is crowding of the bronchovascular structures , but no overt pulmonary edema is seen . No pneumothorax or pleural effusion is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes limit assessment of the lung bases . Patchy bibasilar airspace opacities on the frontal view , likely reflect atelectasis , as no consolidative opacity is seen on the lateral view , though infection is not completely excluded .