Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the cardiomediastinal silhouette . There is stable cardiomegaly . There is pulmonary vascular congestion . There is no focal airspace consolidation . There are postoperative changes from median sternotomy and CABG . There is no pneumothorax . There is no pleural effusion . Clips are noted in the region of the gastroesophageal junction .
    OUTPUT:
    
Pulmonary vascular congestion without focal airspace consolidation .