Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA lateral and AP chest radiographs demonstrate an enlarged heart , seen previously on prior examination , unchanged . There is no pleural effusion . When compared to prior radiograph , there has been interval improvement in pulmonary edema . Cardiomediastinal contours are stable when compared to prior radiograph . No opacity is seen in concerning for pneumonia .
    OUTPUT:
    
No opacity convincing for pneumonia .