Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and Tubes : Enteric tube and right PICC are in unchanged position . Lungs : Low lung volumes with interval improvement in pulmonary edema . Pleura : There is no pleural effusion or pneumothorax Mediastinum : Persistent cardiomegaly , unchanged . Bony thorax : No interval change .
    OUTPUT:
    
Persistent mild pulmonary edema , with interval improvement compared to ___ .