Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior study there has been interval improvement in the pulmonary edema . There continues to be volume loss / consolidation at the bases with small effusions right greater than left . The tracheostomy tube and and right IJ Cordis are unchanged . The NG tube tip is off the film , at least in the stomach
    OUTPUT:
    
Improved appearance of pulmonary edema . An underlying infectious infiltrate in the lower lobes can not be excluded