Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low and there is pulmonary vascular congestion and interlobular septal thickening consistent interstitial pulmonary edema . There is moderate cardiomegaly . A defibrillator ends in the right atrium . No large pleural effusion or pneumothorax . The mediastinum is widened likely to be due to increased intravascular volume .
    OUTPUT:
    
Pulmonary vascular congestion , interstitial edema and cardiomegaly . Right base opacity may represent atelectasis , however , in the correct clinical setting could represent pneumonia .