Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Again , bilateral pleural plaques are extensive obscuring the lung fields and it is somewhat difficult to discern whether there is new focal consolidation , although none is definitely seen . Slight blunting of the posterior costophrenic angles in the right costophrenic angle may be due to pleural thickening , although a trace right pleural effusion is difficult to entirely exclude . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous .
    OUTPUT:
    
Extensive bilateral pleural plaques suggest prior asbestos exposure and partially obscure the lung fields making it difficult to accurately discern whether there is underlying new underlying opacities , though no definite new focal consolidation . Blunting of the right costophrenic angle may be due to a small pleural effusion .