Objective Discussion and analysis of CT guided puncture biopsy of thoracic masses in the safety and diagnostic value. Methods In 2005 June to 2009 June outpatient or inpatient by X-ray or CT revealed 30 patients with intrathoracic masses as the research object, its are to be under the guidance of CT intrathoracic tumor biopsy, retrospective analysis. Results 30 cases were successful, including 27 cases of tumor, the tumor in 3 cases, biopsy diagnosis rate was 96.7%. Biopsy of 4 cases had complications, which accounted for 13.3%, a small number of pneumothorax in 2 cases, appearance of blood in the sputum of 2 cases, all recovered after conservative treatment. Conclusion CT guided thoracic mass percutaneous needle biopsy is a safe and effective diagnostic method, is worth the clinical promoted application.% 目的分析探讨CT导引下胸内肿物穿刺活检的安全性与诊断价值.方法选择2005年6月-2009年6月门诊或住院经X线或CT检查显示胸内肿块的30例患者为研究对象，对其均予以CT导引下胸内肿物穿刺活检，回顾性分析其临床资料.结果30例患者均穿刺成功，其中肿瘤27例，非肿瘤3例，活检诊断率为96.7%.穿刺活检中共发生并发症4例，占13.3%，其中出现少量气胸2例，出现痰中带血2例，经保守治疗后均痊愈.结论 CT导引下胸内肿物穿刺活检是一种安全有效的诊断方法，值得临床推广运用.
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