周围型肺错构瘤CT征象分析

目的评价CT在肺错构瘤中的价值，以提高该病的诊断率。方法回顾性分析2012年1月至2017年1月经手术病理检查证实的24例周围型肺错构瘤的临床资料，所有患者均行CT平扫，其中10例行增强扫描。结果本组24例错构瘤病例均为单发，其中男5例，女19例；年龄21-75岁，平均年龄55岁。位于右肺者15例（62．5％），位于左肺者9例（37．5％）。24例病灶中有7例（29．2％）呈软组织密度。密度不均匀17倒（70．8％），其中有5例（20．8％）显示有软组织成分及脂肪密度成分，12例（50．0％）显示有软组织，脂肪及钙化混合成分（其中3例为典型的爆米花样钙化）。结论周围型肺错构瘤的CT表现有一定特征，病灶边缘清晰，内含脂肪及钙化有助于准确诊断。

Objective To evaluate the value of CT in lung hamartoma in order to improve the correct diagnosis rate of the disease. Methods Twenty- four patients with peripheral pulmonary hamartomas （ PPH ） confirmed by surgery and pathology were retrospectively analyzed from Jan. 2012to Jan. 2017. All cases underwent CT scan. Ten cases underwent enhanced scan. Results Al124caseshadasolitaryPPH, including5malesandlgfemales; aged21to 75 years, mean age 55 years. 15 and 9 of 24 cases were located in right and left lung retrospectively. There were 7 （ 29.2% ） of the 24 cases with soft tissue density. 17 cases （ 79.8% ） were uneven density, of which 5 cases （ 20.8% ） showed soft tissue and fat density, 12 cases （ 50.0% ） showed soft tissue, fat and calcified mixed components （ 3 of which were typical popcorn calcifications ） . Conclusion Certain characteristic CT features of PPH, including clear-cut margin, calcification and fat inside etc, are very useful for correct diagnosis of PPH.