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One case of T-tube implanted. (A) Bronchoscopy indicates complete blockage in the upper trachea; (B) CT scan indicates complete blockage in the cervical trachea; (C) preoperative complete blockage in the cervical trachea and the metal tracheostomy tube indwelling; (D) tracheal recanalization of the previously blocked trachea after surgery and the T-tube indwelling.
