Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiograph , there are no significant changes . There is stable moderate cardiomegaly , unchanged . The lungs are well expanded and without focal opacities . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Stable moderate cardiomegaly , but no evidence of acute cardiopulmonary process .