Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is interval progression of moderate to severe pulmonary edema with persistent moderate cardiomegaly . No pleural effusion or pneumothorax . Aortic arch calcifications are again noted . Previously identified retrocardiac hyperdensity is no longer visualized and was likely projectional in nature .
    OUTPUT:
    
1 . Progression of moderate to severe pulmonary edema with persistent moderate cardiomegaly . 2 . Previously identified retrocardiac hyperdensity is no longer visualized due to parenchymal abnormality . Recommend repeat frontal and lateral radiograph once lungs are clear for further evaluation .