Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest provided . In comparison to prior study from 1 day ago , the diffuse edema has improved . However , there is worsening opacity in the left lower lobe , which could reflect aspiration , atelectasis , or developing pneumonia . There is a small left pleural effusion . Endotracheal tube is seen in appropriate position . Nasogastric tube is seen coursing to the stomach and out of view .
    OUTPUT:
    
1 . Worsening left basilar opacity . Differential includes aspiraiton , atelectasis , or developing pneumonia . 2 . Interval improvement in the moderate pulmonary edema .