Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation , effusion , or edema . There is an 8 mm nodular opacity projecting over the left posterior sixth rib . There is also biapical , left greater than right pleural based scarring . Cardiomediastinal silhouette is within normal limits . There is tortuosity of the descending thoracic aorta . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process , no focal consolidation . A 8 mm nodule projecting over left posterior sixth rib . This could be within the bone due to underlying bone island although pulmonary nodules possible . Shallow obliques suggested to further characterize .