Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a left chest wall pacer device with leads projecting over the right atrium and ventricle . A linear density projecting over the heart represents either a stent or calcification . There is again moderate cardiomegaly , unchanged . No definite focal consolidation is identified . Moderate pulmonary edema is again seen , mildly improved compared to the prior chest radiograph . Central pulmonary vasculature remains prominent . Small bilateral pleural effusions may be slightly increased . There is again no pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . Persistent but mildly improved pulmonary edema . 2 . Redemonstration of bilateral pleural effusions .