Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours remain stable with moderate cardiomegaly . A left axillary pacemaker defibrillator is again seen with tips terminating in the right atrium and right ventricle . A Swan - Ganz catheter is present in unchanged position . There has been interval removal of the enteric tube . There is a small left pleural effusion , and a possible small right pleural effusion , although the right costophrenic angle is not completely captured on the current study . There has been improvement in the mild interstitial pulmonary edema .
    OUTPUT:
    
Improvement in pulmonary edema with a small left pleural effusion and possible right pleural effusion .