Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , effusion , or edema . Left base pleural thickening again noted laterally . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities . Chronic changes seen at the distal right clavicle with AC joint separation and calcific density projecting below the clavicle , likely posttraumatic .
    OUTPUT:
    
No acute cardiopulmonary process .