Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear with no evidence of a consolidation , effusion , or pneumothorax . Patchy opacity overlying the right lower lung appears stable and likely representative of mild scarring . Right hemidiaphragm remains chronically elevated . Large left hiatal hernia is again noted . Cardiomediastinal silhouette is stable . Post - cholecystectomy changes are noted with surgical clips in the right upper quadrant .
    OUTPUT:
    
No acute cardiopulmonary process identified .