Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Tracheobronchopathia osteoplastica ?
    ### Response:
    How is tracheobronchopathia osteoplastica diagnosed? Fiberoptic bronchoscopy is thought to be the best procedure to diagnose tracheobronchopathia osteoplastica (TO). This procedure is done when it is important to see the airways or to get samples of mucus or tissue from the lungs.
    