Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains moderate to severely enlarged , unchanged . Mediastinal contour is stable . Moderate pulmonary edema is present . No large pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Unchanged moderate to severe cardiomegaly with moderate pulmonary edema .