Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from 1 day prior , status post left thoracentesis with substantial interval decrease in diffusion . No definite pneumothorax . Multifocal ground - glass and nodular opacities throughout the lungs , unchanged . Heart size is mildly enlarged . Dobhoff tube has been advanced to the proximal stomach .
    OUTPUT:
    
No pneumothorax , substantial decrease and left effusion