1.Is nodular goiter the pathological change of the precancerosis?

1.节性肿--癌前病变?

2.The others(5 cases) with thyroid mass, and 3 cases were misdiagnosed as nodular goiter, 1 case as thyroma, 1 case as Hashimoto's thyroiditis.

2.以肿块为首发症5，诊为节性肿3，瘤1，桥本氏炎1。

3.Expandable metal stent placement was the most effective therapy for tracheostenosis induced by nodular goiter.Patients with tracheostomy cannula placement were at high risk of severe infection.

3.人工气道重建后均可缓解气管狭窄，以气管内支架置人术效果最佳，气管切开套管置入次之。