Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Right basal opacity is minimally increasing on the prior exam and likely represents a small effusion and adjacent atelectasis . There is a streaky opacity at the base of the left lung consistent with atelectasis . The right - sided chest tube is in stable position . No pneumothorax . The cardiomediastinal and hilar contours are stable . The heart is top - normal as before .
    OUTPUT:
    
Right basal opacity is minimally increased likely representing a small effusion and adjacent atelectasis left basal opacity persists consistent with atelectasis .