Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates 6 cm above the carina . A right IJ central venous catheter terminates in the low SVC . Left pacemaker remains in unchanged position with leads terminating in the right atrium , right ventricle and left ventricle . Enteric tube terminates in the gastric fundus . Stable mild cardiomegaly . Moderate pulmonary edema has significantly improved . Left lower lung is not well aerated which may represent atelectasis versus residual edema and probably overlying pleural fluid . No large pneumothorax .
    OUTPUT:
    
1 . Significant improvement of moderate pulmonary edema . 2 . Atelectasis versus residual edema of the left lower lung with overlying pleural fluid .