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 ___ . Biapical scarring is again noted . The lungs are clear of consolidation or effusion . Cardiomediastinal silhouette is stable . Aortic valve replacement again noted . Fracture of the most superior median sternotomy wire is again noted . There is apparent ossification of anterior longitudinal ligament throughout . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .