Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post CABG with unchanged appearance of a fractured inferior median sternotomy wire . The heart is mildly enlarged . Lung volumes are low , with minimal central pulmonary vascular congestion and atelectasis at the lung bases . There is no appreciable lobar consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
Mild cardiomegaly with minimal central pulmonary vascular congestion .