Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , there has been improvement of bilateral lung opacification . Heart size is exaggerated due to low lung volumes , but is probably normal . Mediastinal and hilar contours are unchanged . There is no large pleural effusion or pneumothorax . Gastrostomy tube is partially visualized .
    OUTPUT:
    
Improved mild pulmonary edema .