Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . Moderate cardiomegaly . There is mild interstitial pulmonary edema . No pleural effusions . There is no pneumothorax . Right lung base opacities are slightly more conspicuous since prior . Hilar and mediastinal silhouettes are unchanged . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
Moderate cardiomegaly and interstitial pulmonary edema . Right lung base opacities , slightly more conspicuous since prior , which may represent atelectasis or infection in the appropriate clinical setting .