Thyroid Follicular Adenoma with Tracheal Stenosis

Abstract

Some cases of thyroid malignant tumors and thyroid lymphoma were reported to have caused tracheal stenosis and choking. Benign thyroid tumors with dyspnea due to tracheal stenosis are very rare. We experienced a benign thyroid tumor that caused tracheal stenosis and dyspnea. In the preoperative CT, there was tracheal stenosis due to enlarged bilateral thyroid lobes and the width of the stenotic lumen was 7mm. Subtotal thyroidectomy improved the dyspnea. Postoperative histopathologic examination confirmed follicular adenoma without malignant lesions or chronic thyroiditis. On postoperative CT, the tracheal stenosis had improved and the lumen had increased to 15mm. The above findings would suggest that it should be keep in mind that even benign thyroid tumors with tracheal stenosis of less than 7mm in the lumen have the possibility of causing dyspnea.