周围型小肺癌的CT诊断

CT Diagnosis of Small Peripheral Lung Cancer

目的:探讨CT对周围型小肺癌的诊断价值。方法:58例周围型小肺癌患者行CT检查。结果:58例患者中,腺癌36例,鳞癌13例,细支气管肺泡癌4例,未分化癌2例,腺鳞癌3例。具分叶征53例,毛刺征52例,胸膜凹陷征45例,血管聚集征32例,小泡征15例,细支气管充气征5例,蜂窝征(磨玻璃征)4例;38例增强中32例增强幅度>30 Hu。结论:CT显示分叶征、毛刺征再加上其他任何一种(或一种以上征象)的周围型小结节,应高度怀疑肺癌;或同时具有3种边缘征象以上的周围型小结节应高度怀疑肺癌。增强扫描对周围型小结节良、恶性鉴别有重要意义。

Objective：To understand the CT signs of small peripheral lung cancer and to improve its diagnostic rate by CT. Methods：Fijfty-eijght patients with small peripheral lung cancer （diameter was approtimate by 3 cm）were conformed by surgery and pathology. The size,edge,signs,internal,texture and enhanced degree were analyzed. Results： Of 58 cases, CT findings included： lobular sign in shape in 53）burr sign in 52;sign of hollowed pleura in 45 ;sign of blood vessel bundle in 32;sign of small bubbles in 15）sign of air bronchus in 5;sign of beehive in 4;of 38 cases with additions enhanced CT Scanning, the increasing range in CT value＇s of 32 caqses was over 30 Hu. Conclusion：Peripheral lung cancer nodules which are of more than 3 edge signs on CT or the lobular sign,burr sign and one or more of the lest signs are highly suspected to be peripheral pulmonary carcinoma. Enhanced CT Scanning is very helpful in distinguishing benign from malignant pulmonary nodules.