Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated . Prominence of interstitial markings is unchanged . There is no nodule , consolidation , effusion , or pneumothorax . Median sternotomy wires and mediastinal clips are stable . Mild cardiomegaly is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .