Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previous bilateral pleural effusions have resolved . Substantial apical thickening bilaterally and lung scarring , the sequela of likely radiation therapy is unchanged . The cardiac size is normal . No evidence of pneumonia .
    OUTPUT:
    
Resolution of pleural effusions . Sequela of radiation induced changes including biapical scarring and fibrosis .