Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left PIC line is unchanged in position compared to the prior radiograph . It enters a left - sided approach and makes a descent at the level of the aortic arch in keeping with known left - sided superior vena cava . There is stable mild cardiomegaly . The hilar and mediastinal contours are unremarkable . There has been slight interval improvement of the large right pleural effusion associated with atelectasis / consolidation . There is no pneumothorax . The replaced valves tricuspid and aortic are redemonstrated . There has been mild improvement of the previously noted interstitial edema . There has been interval improvement in the opacities in the left mid and lower lungs .
    OUTPUT:
    
1 . Slight interval improvement in the large right pleural effusion . 2 . Improvement in the previously noted bilateral pulmonary edema . 3 . Stable left lower lung opacities compared to the prior exam .