Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . A linear opacity is again seen in the right upper lobe , stable across multiple prior exams and compatible with scarring . There is no evidence of new focal or diffuse pulmonary abnormality . There is no focal consolidation , pneumothorax , or pleural effusion . Osseous structures are unremarkable . No radiopaque foreign bodies .
    OUTPUT:
    
No acute cardiopulmonary process .