Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously visualized right basilar opacity has increased and is most likely representative of an infectious process . Left basal atelectatic changes are again noted . Otherwise , bilateral interstitial markings are again noted , suggesting mild pulmonary edema . There is no pneumothorax . The mediastinal contours appear stable when the patient is post CABG . No acute fractures are identified .
    OUTPUT:
    
Progression of previously visualized right lower lung opacity consistent with right lower lobe pneumonia . Additionally , there is increased left basilar opacity which represent atelectasis or be a part of a multifocal infectious process . Mild pulmonary edema persists .