Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral basilar opacities appear unchanged from at least ___ suggestive of an underlying interstitial lung disease , consistent with recent CT findings . New right lower lobe atelectasis is mild - to - moderate . The cardiomediastinal and hilar contours are stable . The pleural surfaces or normal . The left pacemaker is intact with leads terminating in appropriate positions . No pneumothorax .
    OUTPUT:
    
Chronic moderate interstitial lung disease . Low likelihood of superimposed pneumonia . New right lower lobe atelectasis .