Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates low lung volumes , which results in bronchovascular crowding . The region of opacification of the left upper and lower lobes , corresponding to pleural effusion and atelectasis seen on CT from ___ , has decreased in size over the interval . There are moderate - sized bilateral pleural effusions with adjacent atelectasis . The cardiac silhouette remains enlarged which may reflect cardiomegaly although pericardial effusion should also be considered . Multiple overlying surgical clips and intact sternotomy wires are seen . Calcification of the both diaphragmatic pleura is unchanged and consistent with prior asbestos exposure .
    OUTPUT:
    
Interval improvement in the degree of opacification of the left upper and lower lobes , corresponding to pleural effusion and atelectasis from CT dated ___ .