Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear with bilateral calcified pleural plaques again seen compatible with prior asbestos exposure . There is no pleural effusion or pneumothorax . The heart is top normal in size with normal cardiomediastinal silhouette and intact median sternotomy wires .
    OUTPUT:
    
No acute intrathoracic process .