肺恶性局灶单纯性磨玻璃密度结节的CT表现  

CT findings of malignant focal pure ground-glass opacity

作　　者：杨长德[1] 龚洪翰[2] 陈金花[1] 刘霞[1] 

机构地区：[1]杭州市江干区人民医院放射科,浙江杭州310016 [2]南昌大学第一附属医院影像科

出　　处：《实用放射学杂志》2012年第9期1354-1358,共5页Journal of Practical Radiology

摘　　要：目的 探讨肺部恶性局灶单纯性磨玻璃密度结节（focal pure groundglass opacity,pGGO）的CT表现及其诊断价值.方法 收集7例经手术病理证实的周围型小肺癌在CT上表现为单发pGGO病灶,对病灶形态（圆形/类圆形、三角形/不规则形）、病灶边缘（毛刺、分叶、棘状突起）、病灶界面（清晰、毛糙）、内部结构（小泡征、囊状透亮影/假空洞、充气支气管征）、邻近结构改变（胸膜凹陷征、血管集束征）等征象进行分析.结果 7例pGGO病灶均为单发,3例病灶呈圆形/类圆形,1例呈类三角形,3例呈多边形/不规则形;3例病灶可见毛刺征,均有分叶,3例见棘状突起;6例病灶界面清晰,1例为毛糙;病灶内部密度不均匀,3例病灶内见充气支气管征,1例见空泡征,1例可见囊状透亮影（假空洞）;4例病灶邻近可见胸膜凹陷征;3例可见血管集束征.肺门及纵隔未见肿大淋巴结影.结论 恶性pGGO在CT上病灶部位、数目、大小、形态无特征,可有毛刺、分叶、棘状突起、空泡征、胸膜凹陷征、血管集束征等大多数肺癌诸多相同的CT表现,但病灶界面清晰、充气支气管征、不形成肿块及其周围炎性病变有一定的特征性.Objective To discuss the CT features of malignanl focal pureground-glass opacity（ pGGO） ,and to investigate CTdi- agnostic value. Methods 7 cases with small peripheral lung cancer manifested as pGGO confirmed by operation and pathology were collected. CT finding of pGGO including the shap （ round to ovoid, l riangle/polygonal to irregular）, margin （ speculation, lobulation, spine-likeproeess）, contour（ well-defined, coarse interface） , internal characteristics（internal air density/cavities, air bronehogram } , adjacent structural change （pleural indentation, vascular convergence） were analyzed. Results All pC, GOs were single（n=7） , the lesions were round shape （ n= 3 ） , triangle（ n= 1 ） ,irregular （ n = 3 ）, speculation （ n = 3 ）, lobulation （ n = 7 ）, spine-like process （ n = 3 ）, well-defined contour （ n= 6 ） , coarse interface contour （ n = 1 ） , internal air density （ n = 1 ） , cavities （ n = 1 ） , air bronchogram （ n = 3 ） , pleural indentation（n 4）, vascular convergence（n=3）, metastsis of hilar or rnediastinal lymph nodes in none of these 7 cases. Con- clusion The location, size,number, shap, speculation, lobulation, spine-like process, internal air density, pleural indentation, vascular convergence of pGGOs on CT images are no specific, but in terms of CT findings including well-defined contour, air bronchogram, no masses and pneumonic are of relative characteristic.

关 键 词：肺 磨玻璃密度结节 肺癌 体层摄影术 X线计算机 

分 类 号：R734.2[医药卫生—肿瘤] R814.42[医药卫生—临床医学]