Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung bases are better depicted on the current study , compared to the prior . Allowing for this , the overall appearance is similar . Again seen is patchy opacity at the right lung base , probably with a small right effusion , and increased retrocardiac density with a small left effusion . Allowing for differences in positioning and field - of - view , the appearance at the right base may be slightly improved . Otherwise , I doubt significant interval change . Again seen is background hyperinflation , cardiomegaly , and upper zone redistribution .
    OUTPUT:
    
Possible slight improvement at the right base , though direct comparison is limited by the fact that the lung bases were not entirely included on the prior study . Otherwise , I doubt significant interval change .