Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam performed one day prior , the patient has been extubated . There has been interval development of mild pulmonary edema . Increased opacification in the left lower lung zone could be due to asymmetric edema , although early pneumonia is a consideration . There is no pleural effusion or pneumothorax . The left pigtail catheter is unchanged in position . The cardiomediastinal silhouette is normal . A Dobbhoff tube is seen coursing below the diaphragm with the majority of the catheter out of the field of view .
    OUTPUT:
    
1 . New mild pulmonary edema . 2 . Left lower lobe opacification could be due to asymmetric edema or early pneumonia .