Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest PA and lateral radiographs re-demonstrates known right paratracheal mass with what appears to be a stable critical compression and deviation of the trachea . No significant change in mass ___ identified . The hilar and cardiac contours are unremarkable . Lungs are hyperinflated but clear . No pleural effusion or pneumothorax evident .
    OUTPUT:
    
Stable right paratracheal mass with deviation and critical compression of the trachea .