Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slightly rotated positioning . Compared to the prior study , there has been considerable clearing of the previously seen right apical opacity , suggesting that it represented atelectasis . The right base effusion is probably slightly larger . Again seen is upper zone redistribution and diffuse vascular blurring , consistent with CHF , with small right - greater - than - left pleural effusions and underlying bibasilar collapse and / or consolidation . The presence of pneumonic infiltrate at the bases can not be excluded . Left pigtail catheter , with extensive left - sided subcutaneous emphysema is again noted . No pneumothorax is identified . ET tube the carina is not well delineated , but the ET tube probably lies between 2 .9 and 4 .1 cm above the carina . An NG tube is present , tip extending beneath diaphragm , off film . The sideport overlies the stomach . Right IJ line is again seen , tip at cavoatrial junction .
    OUTPUT:
    
CHF with right - greater - than - left effusions and underlying bibasilar collapse and / or consolidation . The presence of pneumonic infiltrate at the bases can not be excluded . Right apical opacity has improved considerably . Right effusion is still small , but larger than on the prior film . Left pigtail catheter similar in configuration . No pneumothorax detected .