Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . There is no pleural abnormality . The moderate cardiomegaly is unchanged from prior exam . The mediastinal and hilar contours are stable . Median sternotomy wires and surgical clips are aligned and intact . The osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .