Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Heart size remains moderately enlarged . The aorta is tortuous . Mediastinal and hilar contours are otherwise unchanged and unremarkable . No pulmonary edema is present . Minimal atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . Hypertrophic changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .