Ms. Wang, 56 years old, started to have an irritating cough for no apparent reason 6 months ago. At first, she did not pay attention to it, but as time went by, she became increasingly worried and rushed to our hospital (Coal General Hospital) for consultation and treatment. After admission, a chest CT showed neoplastic organisms in the main trachea. Bronchial territory examination under general anesthesia showed a spherical neoplasm in the lower trachea with smooth surface. The biopsy pathology showed: adenoid cystic carcinoma. Bronchoscopic laparotomy was performed, and a few local crusts remained after treatment, and the lumen was patent. The patient may feel that there is something in the pharynx, which cannot be spit out or swallowed. Before coughing, the pharynx is itchy and there is obvious foreign body irritation, followed by paroxysmal coughing, which is heavier in the morning or at night before bedtime. Most patients are misdiagnosed as bronchitis or bronchial asthma, and the diagnosis must be corrected at the hospital in time. For intratracheal masses, surgery is not necessary, and bronchoscopic removal is sufficient, followed by radiotherapy and chemotherapy. Before treatment, the new swelling in the lumen of the trachea is electrically coiled and the lumen is open after treatment.