Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , there has been interval removal of the left - sided pigtail catheter , with increased aeration at the left lung base , and resolution of a left - sided pleural effusion . There is no new focal consolidation . No pleural effusion or pneumothorax is seen . Cardiomegaly is unchanged . A rounded opacity overlying aortic arch on the lateral view is stable since at least ___ , and likely represents a lymph node .
    OUTPUT:
    
Interval resolution of left lower lobe atelectasis and / or pneumonia , and left pleural effusion .