Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there is slight increase in opacity in the left lower lung adjacent to the left heart border , with improved right basilar opacity . There is a small right pleural effusion , slightly decreased from prior . No pneumothorax . There is no overt pulmonary edema . The cardiac and mediastinal silhouettes are unchanged .
    OUTPUT:
    
Slightly increased opacity at the left lower lung adjacent to the left heart border , with decrease in right basilar opacity compared with prior . Slight decrease in small right pleural effusion .