Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and two lateral chest radiographs were obtained . Left lower and right mid lung opacities have cleared since the prior exam two days ago . The hila are also more distinct . Cardiac contours unremarkable . Biventricular pacing leads project over unchanged positions .
    OUTPUT:
    
Clearing of right mid and left lower lobe opacities suggests improvement in mild pulmonary edema . No evidence of infection . Discussed with Dr ___ ___ phone at ___ on ___ .