Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , there is new hazy opacity at the right lung base . Slight blunting of the right costophrenic angle could be very slightly more pronounced than on the prior film . Minimal blunting of left costophrenic angle is unchanged . Left base atelectasis is also unchanged . No CHF . The cardiomediastinal contours , which apparently include changes related to esophagectomy are grossly unchanged . Right - sided indwelling catheter again noted . No pneumothorax detected . With slight blunting of the right costophrenic angle which is slightly more
    OUTPUT:
    
Slightly hazy opacity at the right lung base which is new compared with the prior study . Based on this image , it is difficult to determine whether this is caused by layering pleural fluid or whether there is a component of focal parenchymal opacity to suggest pulmonary infiltrate or aspiration pneumonitis . Layering pleural fluid is considered more likely .