Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular catheter terminates at the superior cavoatrial junction . Right costophrenic sulcus is excluded from the image . Lungs are low in volume . Aside from atelectasis at the right lung base , the right lung is well aerated . The left lung is slightly better aerated than on the prior study with minimal decrease in left pleural effusion though some of it appears to be collected in a nondependent location , perhaps within the major fissure . Mild cardiomegaly is noted and slightly decreased from the prior study . Median sternotomy wires as before .
    OUTPUT:
    
Overall likely unchanged to minimally decreased left pleural effusion , with a portion collecting in a non-dependent fashion , perhaps within the major fissure .