Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A vague opacity in the left lower lung is slightly more conspicuous compared with the prior exam . Opacity previously noted in the right mid lung is less conspicuous , likely representing residual scarring in the area of prior pneumonia . No pneumothorax or large pleural effusion . Heart size is stable and the mediastinal contour is unchanged . No displaced rib fracture .
    OUTPUT:
    
1 . Increased conspicuity of opacity in the left lower lung . While the differential includes pneumonia , a nonresolving opacity raises concern for neoplasm . Consider nonemergent CT to further assess . 2 . Minimal scarring in the right mid lung at the site of prior pneumonic consolidation .