Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pleural calcifications suggesting prior asbestos exposure are unchanged . There is no focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Unchanged asbestos related pleural plaques .