摘要
目的分析支气管黏液表皮样癌的CT表现。方法回顾性分析5例经病理学确诊的支气管黏液表皮样癌的CT资料。结果 5例均为单发肿瘤,中央型4例,周围型1例。中央型中1例呈支气管腔内型,表现为右主支气管内边界清楚的等密度类圆形结节,相应基底支气管壁稍增厚;其余3例呈支气管腔内-外型,表现为支气管腔内、外生长的等及稍低密度不规则结节或肿块,1例边界较清晰,2例边界不清,2例伴有点状钙化。2例肿瘤远端条片肺不张,内见支气管黏液栓,近侧支气管腔内见黏液围绕肿瘤呈液性新月征。1例周围型呈左肺舌叶边界较清晰的等密度类圆形结节,边缘见浅分叶。CT增强后肿瘤强化均不均匀,4例中央型较明显强化,1例周围型中度强化。4例中央型均继发不同程度的支气管阻塞性改变,2例伴肺门及纵隔淋巴结肿大,1例伴中等量胸腔积液。结论CT对支气管黏液表皮样癌的诊断具有较大价值。
Objective To review the characteristics of bronchial mucoepidermoid carcinoma on CT scan. Methods The CT findings of 5 cases of pathologically-proved bronchial mucoepidermoid carcinoma were analyzed retrospectively.Results All 5 cases were of single tumor. Four cases were central type and one case was peripheral type. Among the central type cases,one case was endotracheobronchial type and presented as oval nodule of equal density in the right main bronchia with clear edge,the adjacent bronchia wall was slightly thickened. The rest 3 cases were intra-and-extraluminal types,showing irregular intra-and-extraluminal nodules or masses of equal or low density with clear edge in one case and crude edge in 2 cases; and calcification spots were seen in 2 cases. In 2 cases,flake-like pulmonary atelectasis and bronchial grume was observed in the forane tissue,and grume surrounded the tumor showing liquid crescent sign in the nearby bronchi. For the one peripheral-type case,an oval nodule of equal density was detected in the ligulate segment of left lung,and the nodule has clear edge with shallow lobes on the border. All tumors showed asymmetric enhancement for enhanced CT,with 4 central-type showing obvious enhancement and one peripheral-type case showing moderate enhancement. Different degrees of bronchial obstruction were secondary to all 4 central-type cases. Two cases were accompanied with hilar and mediastinal lymphadenectasis,and one case was accompanied with moderate pleural effusion. Conclusion CT scan is of important value for the diagnosis of bronchial mucoepidermoid carcinoma.
出处
《实用肿瘤杂志》
CAS
2016年第1期71-74,共4页
Journal of Practical Oncology
