Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Streaky opacities at the bases could represent atelectasis or potentially infection or aspiration . No pneumothorax . No pleural effusion .
    OUTPUT:
    
Subtle , streaky bibasilar opacities could reflect aspiration or infection in the appropriate clinical setting .