Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right hemodialysis catheter again terminates in the right atrium . There is minimal increase in bilateral airspace opacities suggesting pulmonary edema . Moderate cardiomegaly is unchanged . The pulmonary artery is enlarged . The aortic arch is calcified . Previous rounded opacity at the right base is re-demonstrated . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Moderate cardiomegaly and mild - to - moderate interstitial pulmonary edema . 2 . Round lesion at the right lung base is unchanged