Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is similar . The cardiac and mediastinal contours appear unchanged . There is again hazy upper zone re-distribution of pulmonary vascularity with a mild to moderate appearance of perihilar fullness and interstitial changes in the mid and lower lungs , most consistent with mild - to - moderate congestion . There is no pleural effusion or pneumothorax . Bony structures are unremarkable . Findings are fairly similar to the prior examination , however .
    OUTPUT:
    
Findings suggesting mild - to - moderate pulmonary edema .