Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild right pleural effusion , which has minimally changed since prior exam . Right basilar opacity , likely atelectasis , with associated volume loss , similar . There is no pneumothorax . Left lung is clear . Borderline heart size , pulmonary vascularity
    OUTPUT:
    
Small right pleural effusion , with right basilar atelectasis . No pneumothorax .