Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well inflated bilaterally with distorted pulmonary architecture and flattened diaphragms consistent with COPD / emphysema . There is a 6 mm nodular opacity projecting over the lateral eighth left rib . Stable bullae are seen in the upper lung zones bilaterally . There are no areas of focal consolidation concerning for infection . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
No evidence of infection . There is a nodular opacity projecting over the eighth lateral left rib for which repeat study with nipple markers and shallow oblique projections is recommended .