A subglottic granuloma is one of the late-phase complications that can occur after intubation. It can cause a life-threatening airway obstruction; therefore, a rapid diagnosis and appropriate treatment plan is necessary. A 62-year-old male had undergone an emergency total arch replacement for acute aortic dissection. Postoperative ventilation support had been performed until the 15th postoperative day (POD). He was discharged from the hospital on POD 30. On POD 50, he was brought to our hospital by an ambulance with severe dyspnea. A large subglottic granuloma occupying the trachea was identified by flexible bronchoscopy. After an emergency tracheostomy, resection of the granuloma with argon plasma coagulation via flexible bronchoscopy was performed safely. Physicians should suspect a post-intubation subglottic granuloma when patients who have undergone intubation report feeling throat discomfort. Resection via flexible bronchoscopy after tracheostomy is a safe and feasible procedure that may shorten the duration of therapy and hospital stay.
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