Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison with the previous study of ___ . Left chest tube remains in place . Patchy bibasilar pulmonary opacities and indistinctness of the left hemidiaphragm are redemonstrated . The left chest tube remains in place . The heart and mediastinal structures are unchanged in appearance . Compared with previous study , there is interval improvement in increased density on the left .
    OUTPUT:
    
Bilateral opacities consistent with consolidation and possibly volume loss , pleural fluid at the left base . There appears to be slight interval improvement on the left .