日気食会報，73（3），2022A Case of Acquired Tracheobronchomalacia Due to Giant GoiterJ. Jpn. Bronchoesophagol. Soc., 73 : 231─236, 2022An 80-year-old woman without previous respiratory disease was brought to our hospital be-cause of decreased level of consciousness. She presented with rapid breathing and severe hypoxia, and respiratory disorder was suspected as the cause of her impaired consciousness. Tracheal intu-bation and mechanical ventilation were performed. The mechanism of the respiratory failure re-mained unclear for four days, but a CT scan on the fifth day after extubation revealed tracheal stenosis due to swollen thyroid gland. The thyroid gland was defined as benign preoperatively, so a total thyroidectomy was performed. During the operation, the tracheal cartilages were deter-mined to have softened, and tracheomalacia was diagnosed. A concurrent tracheostomy had been planned for prolonged mechanical ventilation but was postponed because of concern for tracheal injury or tear. The tracheostomy was performed later. Bronchoscopic examination revealed severe tracheobronchomalacia from the cervical trachea to at least the bilateral main bronchus. CPAP therapy improved the tracheal stenosis, and continuation of the CPAP therapy by tracheostomy tube was necessary.Key words : tracheobronchomalacia, giant goiter, airway narrowing, bronchoscopy, CPAP2361）Department of Otolaryngology, Kyoto City Hospital, KyotoShigefumi Morioka, M.D., Ph.D.1） and Ken-ichiro Toyoda, M.D., Ph.D.1）
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