Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since 2 days prior , bilateral parenchymal opacities have minimally improved . Appearance on today 's radiograph appears more consistent with moderate pulmonary edema rather than multifocal pneumonia . Silhouetting of the right hemidiaphragm may be due to a combination of pleural fluid , atelectasis , or consolidation . Crease lucency at the lateral left lung base is consistent with a persistent left basilar pneumothorax , best appreciated on CT chest dated ___ . Retrocardiac atelectasis is unchanged . Severe cardiomegaly is unchanged .
    OUTPUT:
    
Minimal improvement in diffuse parenchymal opacities , which now appear more consistent with moderate pulmonary edema rather than multifocal pneumonia . Persistent left basilar pneumothorax .