Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right IJ central venous catheter terminates in the mid SVC . The ET tube terminates in the lower trachea . Left midlung perihilar airspace opacities have slightly increased . There is no pneumothorax . Stable mild blunting of the left costophrenic angle may be due to a small pleural effusion . Moderate cardiomegaly despite the projection is unchanged .
    OUTPUT:
    
Slightly increased left perihilar airspace opacities may be due to mild edema . Stable moderate cardiomegaly .