Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate pulmonary edema , but no pleural effusion or pneumothorax . Heart size is top - normal , stable . Mediastinal contours are within normal limits . Osseous structures are intact .
    OUTPUT:
    
1 . Moderate pulmonary edema without pleural effusions . 2 . Top - normal heart size .