原发肺黏液表皮样癌CT诊断(附14例报告)  

The CT manifestations of primary pulmonary mucoepidermoid carcinoma

作　　者：张大福[1] 李振辉[1] 高德培[1] 董兴祥[1] 杨光军[1] ZHANG Da-fu;LI Zhen-hui;GAO De-pei(Department of Radiology,the Third Hospitalof Kunming Medical University,Cancer Hospitalof Yunnan Province,Kunming 650118,China)

机构地区：[1]昆明医科大学第三附属医院/云南省肿瘤医院放射科,昆明650118

出　　处：《放射学实践》2020年第10期1253-1257,共5页Radiologic Practice

基　　金：云南省科技厅-昆明医科大学应用基础研究联合专项基金[2019FE001(083)、2019FE001(084)、2018FE001(065)、2018FE001(251)];云南省生物资源数字化开发应用项目(202002AA100007)。

摘　　要：目的:探讨原发肺黏液表皮样癌(PPMEC)CT表现。方法:分析经组织病理学确诊14例PPMEC CT表现并结合文献进行分析。结果:14例患者CT表现部位:中央型13例,外周型1例。大小及形态:病灶直径1~7 cm,12例病灶长径沿支气管走形。密度,强化及内部特征:平扫病灶呈不均匀低密度,5例内伴点状钙化,增强后轻中度强化,CT值增加范围约13~36 HU。病灶周围特征:5例位于段支气管内沿支气管生长,伴远端阻塞性炎症、不张及黏液栓。4例出现淋巴结及远处转移。结论:PPMEC临床表现无特异性但CT征像具有一定特点:多位于叶或段支气管腔,平扫密度不均匀低,增强轻-中度强化,其长径沿支气管走形,常伴气道阻塞表现。Objective:To discuss the CT features of primary pulmonary mucoepidermoid carcinoma(PPMEC).Methods:CT manifestations of 14 cases of pathologically confirmed PPMEC pathologically were analyzed retrospectively with literature review retrospectively.Results:CT manifestations of PPMEC in the 14 patients were as follows.There are lesion location,13 cases of central type(n=13)and 1 case of peripheral type(n=1)with.Lesion size and shape,diameter 1~7cm in diameter.Density,enhancement and inner structure,on plain CT scans the the lesions were showed oflow density with intratumoralintertumoral punctate calcifications(n=5).On contrast-enhanced CT scans,the lesions showed mild-moderate enhancement 13~36HU.Additional finding were distal plug-in inflammatiodialated bronchus withn,atelectasis and mucus plug and atelectasis,which was located at the peripheral region of the tumor(n=5).4 patients were combined with distant and lymphaticsshowed metastasis.Conclusion:PPMEC is lack of characteristic of clinical manifestations but has some CT features.PPMEC is usually located within a lobar and segmental bronchus.The tumor's longest diameter is parallel to the bronchial branching direction.On the contrast-enhanced CT scans,the lesions usually display mild-moderate heterogeneous enhancement.Coexisting signs of a Airway obstruction can be found in almost all lesions.

关 键 词：癌 黏液表皮样 肺肿瘤 体层摄影术 X线计算机 

分 类 号：R730.26[医药卫生—肿瘤] R734.2[医药卫生—临床医学]