Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation of the chest is limited due to mild levoscoliosis . Within these limitations , the lungs are hyperexpanded and show unchanged right upper lobe nodular opacity . A nodule projecting over the left upper lung is not well visualized . No pneumothorax is present , although there is mild blunting of the left costophrenic angle . The cardiomediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
No radiographic evidence of injury .