Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube and enteric tube remain in standard position . Right internal jugular line is present with tip in the mid SVC . Cardiomediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . Bilateral ground - glass opacities are unchanged since the most recent prior study . The patient is status post CABG .
    OUTPUT:
    
No change in bilateral parenchymal opacities . PCP pneumonia or ___ drug reaction should be considered in the differential diagnosis for this appearance .