Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal and hilar contours are similar . Lungs are hyperinflated . Streaky opacities in the lung bases may reflect atelectasis but aspiration or infection can not be completely excluded . There is no focal consolidation , pleural effusion or pneumothorax . Pulmonary vasculature is not engorged . A percutaneous catheter balloon is seen in the left upper quadrant of the abdomen .
    OUTPUT:
    
Streaky bibasilar airspace opacities may reflect atelectasis but infection or aspiration can not be excluded in the correct clinical setting .