Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The appearance of the right sided small pleural effusion remains unchanged . Again seen is minimal retrocardiac opacity . There is no pneumonia or pulmonary edema . Left sided pacemaker is unchanged . There is redemonstration of a sclerotic lesion at the second left rib .
    OUTPUT:
    
Stable small right sided pleural effusion .