Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate - to - severe cardiomegaly is seen with diffuse alveolar opacities compatible with moderate pulmonary edema as seen on the recent prior . Small - to - moderate left pleural effusion with resultant atelectasis is seen . Given the retrocardiac consolidation , followup imaging after diuresis is recommended to exclude underlying infectious process .
    OUTPUT:
    
Moderate pulmonary edema . Left pleural effusion with adjacent parenchymal opacity , likely atelectasis but pneumonia is not excluded . Follow up CXR may be helpful in this regard .