Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low , slightly improved when compared to the prior study . A right internal jugular catheter terminates in the mid SVC . A dual lead pacemaker is unchanged in appearance . Median sternotomy sutures are also unchanged . There has been interval decrease in the size of the left pleural effusion with associated atelectasis . Infection can not be excluded . There is a small right pleural effusion . The right lung is otherwise clear .
    OUTPUT:
    
Bilateral pleural effusions , larger on the left but decreased when compared to the prior study . Persistent left lower lobe airspace opacity .