Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The dual - lumen left central venous catheter has been removed in the interim . Lung volumes remain low . A small right pleural effusion is essentially unchanged . A large left pleural effusion is probably overall unchanged as well with adjacent parenchymal opacities that most likely reflect atelectasis ; however , concurrent infection can not be excluded in the appropriate situation . There is mild central pulmonary vascular congestion without frank pulmonary edema . Median sternotomy wires and aortic valve replacement as well as mediastinal clips are overall unchanged . No pneumothorax . The heart is stably enlarged , although difficult to fully assess in the setting of the left pleural effusion .
    OUTPUT:
    
1 . Large left pleural effusion with probable associated compressive lower lobe atelectasis , though pneumonia can not be excluded . 2 . Small right pleural effusion , unchanged . 3 . No pulmonary edema .