Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is bibasilar atelectasis and more focal plate - like atelectasis in the peripheral lung bases . No overt interstial edema is identified . No pneumothorax is evident . Calcifications of the aortic knob are noted . Cardiomediastinal and hilar contours are within normal limits . There are probable small bilateral pleural effusions .
    OUTPUT:
    
Bibasilar atelectasis and small bilateral pleural effusions . No pneumonia .