Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been an increase in the moderate left pleural effusion and fluid within the left major fissure . A left pleural catheter is in place . The right lung is clear other than minimal basilar atelectasis . There is no new cardiac and mediastinal contour .
    OUTPUT:
    
Increasing size of left pleural effusion since ___ and ___ . Presence of superimposed infection can not be excluded .