Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral pleural calcifications / plaques are re - demonstrated suggesting prior asbestos exposure . Persistent inferolateral right pleural thickening is seen . Left base opacities which are new since the prior study from ___ could in part relate to new pleural thickening however , underlying infection or aspiration may be present . There is blunting of the left costophrenic angle , new since the prior study which may be due to a trace pleural effusion versus pleural thickening . No pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Evidence of DISH is seen along the thoracic spine .
    OUTPUT:
    
Extensive bilateral pleural plaques raise concern for prior asbestos exposure . Persistent inferolateral right pleural thickening . Left base opacity new since ___ may represent new pleural thickening / progression of post asbestos exposure changes , underlying infection or aspiration not excluded .