A tracheal mass was detected in a woman who complained progressive cough and dyspnea developed 3 months ago. Tumor was located just 1 cm above carina almost obstructing the tracheal lumen and it was mobile with respiration. Curative tracheal resection & anastomosis was attempted with a right thoracotomy approach. In this patient, complete tracheal obstruction by the mass can occur during the induction of the anesthesia and the pre-resection period; therefore, we made cardiopulmonary bypass available before the induction. We successfully maintained the airway and provided the adequate ventilation during that critical period without using cardiopulmonary bypass. Here we report this case with a literature review.