Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior radiograph , there has been interval resolution of the bilateral pleural effusions . There is a new small opacity in the left apex projecting over the lateral aspect of the left 1st rib ; it is not demonstrated on lateral view . Several linear opacities are noted within the right hemi-thorax , likely representing scarring . There is no pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Small left apical opacity that was not seen on the prior CXR .