Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and cardiac valve replacement . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous . Surgical clips are also noted overlying the right upper hemi thorax . No focal consolidation , pleural effusion , or pneumothorax is seen . Minimal vascular congestion is noted .
    OUTPUT:
    
Possible minimal vascular congestion . Otherwise , no acute cardiopulmonary process .