Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a subtle rounded nodular opacity projecting over both the right and left lung base which could be nipple shadows , however , recommend repeat with nipple markers to confirm and exclude underlying pulmonary nodule . Subtle bibasilar opacities more likely represent atelectasis or aspiration rather than pneumonia .
    OUTPUT:
    
Subtle rounded nodular opacity projecting over both the right and left lung bases which could represent nipple shadows , however , recommend repeat with nipple markers to confirm and exclude underlying pulmonary nodule focal . Subtle bibasilar opacities more likely represent atelectasis or aspiration rather than pneumonia .