Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild pulmonary edema is stable with mild - to - moderate right pleural effusion . Left lower lobe atelectasis is improved , but there is new obscuration on right hemidiaphragm : It could be due to atelectasis , aspiration or pneumonia . Mild cardiac enlargement is stable . There is no pneumothorax . Right apical calcification is stable since ___ .
    OUTPUT:
    
1 . Mild pulmonary edema with right pleural effusion is stable . 2 . Right hemidiaphragm is more obscured and this could be due to atelectasis . However , aspiration or pneumonia can not be excluded .