Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The low lung volumes are stable . No focal consolidations . Unchanged moderate to severe cardiomegaly . Unchanged mild interstitial edema . The mediastinal and hilar contours are stable . Unchanged bilateral pleural effusions and lower lung atelectasis . The right swans Ganz catheter terminates more proximally likely in the right ventricular outflow tract .
    OUTPUT:
    
Unchanged mild interstitial edema and bilateral pleural effusions .