Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to prior , lower lung volumes are seen with secondary crowding of the bronchovascular markings . The lungs remain clear without consolidation , effusion , or overt pulmonary edema . The cardiomediastinal silhouette is stable . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .