Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of chest Large opacity occupies the left lower lobe which is a combination of pleural effusion and atelectasis . Underlying pneumonia can not be ruled out . The right lung appears relatively stable with last minimal atelectasis . Vascular engorgement and mild pulmonary edema appears relatively stable . Cardiac size is difficult to evaluate . Right PICC has been removed .
    OUTPUT:
    
1 . Increasing left lower lobe opacity is a combination of atelectasis and effusion ; pneumonia can not be ruled out . 2 . Mild pulmonary edema , overall stable since ___ .