目的：评价国产镍钛支架治疗恶性肿瘤引起的气管支气管狭窄的可行性和疗效。
Objective: To appraise the feasibility and efficacy of home made Nitinol stent in the treatment of malignant tracheobronchial stenosis.
评价经鼻安放气道支架治疗恶性肿瘤引起的气管支气管狭窄的可行性和疗效。
To access the feasibility and efficacy of home made nitinol stent in the treatment of malignant tracheobronchial stenosis by placement of airway stents via nasal cavity.
恶性肿瘤的另一个特征是浸润周围组织。图示：肺癌沿着支气管蔓延到肺周围。
This is a squamous cell carcinoma of the lung. It is a bulky mass that extends into surrounding lung parenchyma.
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