周围型肺鳞癌的CT表现  

CT Appearances of Peripheral Pulmonary Squamous Carcinoma

作　　者：时维彬 殷泽富[1] 李联忠[1] 张一铭[1] 蒋悍东 

机构地区：[1]青岛医学院附院放射科

出　　处：《实用放射学杂志》1994年第4期221-223,共3页Journal of Practical Radiology

摘　　要：本文分析了５３例周围型肺鳞癌的ＣＴ表现，特别是在强化扫描时的密度特点，其中２３例有病灶平扫者作了前后密度对比。５例ＣＴ表现与标本的横断面进行了对照。结果显示：４例形成不规则厚壁空洞，另４９例中，瘤体强化密度不均匀者占４２／４９，其中３４例强化时病灶内见到边缘较清楚的低密度区。通过测量１６例强化前后的代表性ＣＴ值，显示这些低密度区不强化或仅轻度强化，说明坏死区是无血管的，５例标本也证实了这一征象。瘤体大坏死面积常较大。非坏死的瘤组织强化明显，常明显高于同层面胸壁软组织的ＣＴ值。４例瘤体内见到点状钙化。CT appearances of 53 cases with peripheral squamous carcinoma were retrospectively ana-lyzed.Enhanced scan was made on all the cases,plain scan on 23cases,CT pathologic correlation on 5 cases.Of 53cases,4 showed cavitations ,and 42 presented as inhomogeneous densitive focus on enhanced scan,Lowerdensitive areas with distinct margins were seen in 32 of 42 cases.Compared with plain scan,the lower densi-tive areas were not enhanced,and they were necrotic parts of tumors on the pathologic specimen. Higher den-sitive areas were non necrotic parts of tumors, and they were significantly potentialized on enhanced scan.Their CT values were much higher than those of soft tissues of chest wall on the same layer.

关 键 词：肺肿瘤 鳞癌 病理 CT 

分 类 号：R734.204[医药卫生—肿瘤]