Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal and there is no evidence of pulmonary edema . There is a subtle right lower lobe opacity is decreased in conspicuity from the prior exam . No pneumothorax .
    OUTPUT:
    
No evidence of pulmonary edema . Subtle right lower lobe opacity likely represents resolving pneumonia .