Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to most recent prior exam , there has been interval development of a small right pleural effusion . There is new mild interstitial edema . Heart size is moderately enlarged , as seen previously . Mediastinal contours are stable . No pneumothorax is seen . Increased density of the major fissure may represent fluid , pleural thickening , or other material within the fissure . There has been interval removal of an intestinal catheter .
    OUTPUT:
    
New small right pleural effusion and mild interstitial edema .