Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously described right lower lobe opacity is redemonstrated , more conspicuous than ___ but less conspicuous than ___ likely due to diuresis . Residual opacity remains concerning for pneumonia . Left pleural effusion has decreased from the prior study . The heart is normal in size with normal cardiomediastinal silhouette .
    OUTPUT:
    
Interval decrease in right basal opacity after diuresis though the residual remains concerning for pneumonia .