Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right PICC is unchanged in position , ending in the low SVC . Left lower lobe collapse persists . There is mild right lower lung atelectasis . There may be mild pulmonary edema . Moderate cardiac enlargement is unchanged . The mediastinal contours are unchanged . There is no pneumothorax .
    OUTPUT:
    
1 . Unchanged left lower lobe collapse . 2 . Unchanged moderate cardiac enlargement . 3 . Possible mild pulmonary edema .