Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes remain low . There is interval improvement in aeration of the left lung with decreased size of left pleural effusion from ___ and significantly decreased from ___ . A left pleural pigtail catheter is in similar position . A smaller right pleural effusion is unchanged . No pneumothorax is seen . There is improved but persistent mild left pulmonary edema , likely related to reexpansion . The cardiomediastinal contours are exaggerated by low lung volumes but likely within normal limits .
    OUTPUT:
    
Interval decreased size of left pleural effusion with improved but persistent left reexpansion pulmonary edema .