Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are clear of consolidation or effusion . The cardiomediastinal silhouette is normal . Anterior the left 3rd rib fracture is again seen . Focal opacity projecting over left mid lung anteriorly is compatible with radiation changes seen on prior chest CT . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary process .