Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The cardiac silhouette remains mild to moderately enlarged . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There is evidence of a large hiatal hernia with large air - fluid level seen . The aorta is calcified and tortuous . Some degenerative changes are seen along the spine .
    OUTPUT:
    
Large hiatal hernia with large air - fluid level . Cardiomegaly again seen . No focal consolidation or pleural effusion , or pulmonary edema .