Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is blunting of the right lateral costophrenic angle with adjacent linear opacities in the lung . There is no pleural effusion . The lungs are otherwise clear and the cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Right pleural thickening and adjacent linear opacity suggestive of scarring . However , these changes were not present on prior films and therefore superimposed acute process such as infection is not excluded .