Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Multiple calcified pleural plaques are similar to prior studies suggesting prior asbestos exposure . There is no focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No acute intrathoracic process . Unchanged bilateral calcified pleural plaques consistent with prior asbestos exposure .