Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs again demonstrate sternal wires and calcification of the aortic knob . The cardiomediastinal silhouette is normal and the lungs are without focal consolidation , pleural effusion , or pneumothorax . There is mild vascular congestion . Old right rib fractures are noted . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Mild vascular congestion .