Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is accentuated as a result appearing mildly enlarged with a left ventricular predominance . Mediastinal and hilar contours are unremarkable . Crowding of bronchovascular structures is present without overt pulmonary edema . Patchy opacities in the lung bases likely reflect areas of atelectasis . No focal consolidation , large pleural effusion or pneumothorax is identified . No acute osseous abnormality is detected . Mildly distended colonic loops of bowel are seen within the upper abdomen .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis .