Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs . The lungs are well expanded and clear . There is no focal consolidation , effusion , pneumothorax . Cardiomegaly is mild , predominantly left atrial , upper lobe vascular redistribution is mild , and chronic mild bronchial cuffing is more pronounced . The sternotomy wires are intact . Calcification of the ascending thoracic aorta is chronic , the aortic caliber which can not be determined on these conventional radiographs does not appear to have changed since ___ .
    OUTPUT:
    
Borderline cardiac decompensation . Chronic , calcified ascending thoracic aorta , size indeterminate .