Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . A tracheobronchial stents are in place , not significantly changed in overall position as compared with recent chest radiograph . A linear metallic density again noted 2 project over the lower mediastinum . Lungs are clear . Cardiomediastinal silhouette stable . Bony structures intact .
    OUTPUT:
    
Tracheobronchial stents in unchanged position . No superimposed acute process .