Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to prior study there is little overall change . Redemonstrated is heterogeneous with right basilar airspace opacities likely related to a combination of consolidation , atelectasis , and effusion . Left lung is clear . Cardiomediastinal silhouette is stable . Dual chamber pacemaker leads are unchanged in position .
    OUTPUT:
    
No substantial change from prior