Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , but there is no focal consolidation . Changes of coronary artery bypass grafting , with median sternotomy wires and mediastinal clips . Heart size is top normal . There is borderline pulmonary vascular cephalization and scattered Kerley B lines . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
Borderline pulmonary edema .