Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . Vague linear opacity projecting over the right mid lung on the frontal view is not seen on the lateral , not significantly changed and potentially due to scarring given overlying changes in the rib cage . Lungs are otherwise clear . Costophrenic angles are sharp . Cardiomediastinal silhouette is stable . Linear left basilar opacity is stable . Right lateral rib fixation plates and screws again seen . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
No definite acute cardiopulmonary process .