Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior , there has been no significant interval change . Elevation of left hemidiaphragm with opacity at adjacent left lung base is compatible with atelectasis and / or scarring . This is unchanged dating back to ___ . The right lung is grossly clear . The cardiomediastinal silhouette is stable . No acute osseous abnormalities . There is no free intraperitoneal air .
    OUTPUT:
    
No acute cardiopulmonary process .