螺旋CT导引下活检在实变型肺泡癌诊断中的应用

Application of spiral CT-guided biopsy in diagnosis of consolidative bronchioloalveolar carcinoma

目的探讨实变型肺泡癌的螺旋CT特点及导引穿刺活检的应用价值。方法对25例CT拟诊为实变型肺泡癌病例行CT导引穿刺活检,分析其影像学特点。结果 25例患者全部成功取到组织,14例诊断为实变型BAC,肺炎6例,2例真菌感染,3例诊断为干酪性肺炎。结论 CT平扫表现肺段、叶性实变区内蜂窝状气腔及空洞、血管造影征、枯树枝征及周围多发腺泡结节及磨玻璃密度区是实变型BAC的主要特点;CT引导肺穿刺活检是较理想的确诊手段,二者结合可以大大提高早期诊断率,明显减少误诊率。

Objective To evaluate the application of spiral CT-guided biopsy in diagnosis of consolidative bronchioloalveo-lar carcinoma （ BAC） .Methods 25 cases of suspected bronchioloalveolar carcinoma were biopsied with CT-guided percuta-neous puncture .The confirmed diagnosis images data were retrospectively analyzed .Results The 25 cases were successfully biopsied including 14 cases of BAC,6 cases of pneumonia ,2 cases of mycotic infection and 3 cases of caseous pneumonia . Conclusion Air bronchogram ,honeycomb or air cavity sign ,multiple nodules and/or ground glass opacity are significant fea-tures of consolidative BAC .CT-guided percutaneous puncture biopsy is helpful in diagnosis of BAC .Early diagnosis and reduc-ing misdiagnosis would be achieved by combining the two methods .