原发性支气管黏液表皮样癌的临床及CT特征

发布时间：2018-03-01 05:29

本文关键词： 肺癌黏液表皮样体层摄影术 X线计算机病理学　出处：《中国医学影像技术》2017年01期 　论文类型：期刊论文

【摘要】：目的探讨原发性支气管黏液表皮样癌(PMEC)的临床及CT特征。方法回顾性分析经病理证实的33例PMEC的临床及CT资料。结果33例PMEC中,低级别18例(男7例、女11例),高级别15例(男12例、女3例)。CT表现:周围型17例(低级别6例、高级别11例),中央型16例(低级别12例、高级别4例);24例肿块长径与所属肺叶或肺段支气管平行;肿块密度欠均匀,18例肿块内见低密度区;阻塞性表现14例,5例见"空气新月征",钙化3例;对29例行增强扫描,其中轻度强化19例,中度及显著强化各5例。高、低级别PMEC的好发性别、分布和淋巴结肿大表现上的差异有统计学意义(P均0.05),高级别PMEC淋巴结转移率高于低级别PMEC,但差异无统计学意义(P0.05)。结论不同病理级别PMEC在好发性别上有一定倾向性。CT图像上PMEC呈边界清晰的类圆形或分叶状,阻塞性表现及钙化常见,多呈轻度不均匀强化。高级别PMEC多为外周型,淋巴结转移较常见,低级别PMEC多为中央型,淋巴结转移少见。
[Abstract]:Objective to investigate the clinical and CT features of primary bronchial mucoepidermoid carcinoma (PMECs). Methods the clinical and CT data of 33 cases of PMEC proved by pathology were retrospectively analyzed. Ct findings of 17 cases of peripheral type (6 cases of low grade, 11 cases of high grade, 16 cases of central type (12 cases of low grade, 24 cases of high grade) were parallel to the lung lobes or bronchi of lung. The low density area was found in 18 cases with uneven mass density, 5 cases with "air crescent sign" and 3 cases with calcification in 14 cases with obstructive symptoms, 19 cases with mild enhancement, 5 cases with moderate enhancement and 5 cases with significant enhancement. The predilection gender of low-grade PMEC, There were significant differences in distribution and lymph node enlargement, and the lymph node metastasis rate of high grade PMEC was higher than that of low grade PMEC, but the difference was not statistically significant (P 0.05). Conclusion PMEC of different pathological grade has a certain tendency in predisposing sex. On CT images, PMEC showed a circular or lobular shape with a clear boundary. Obstructive manifestation and calcification are common, most of them are mild heterogeneous enhancement, high grade PMEC is peripheral type, lymph node metastasis is more common, low grade PMEC is more central type, lymph node metastasis is rare.
【作者单位】：南方医科大学南方医院影像中心;
【分类号】：R734.1;R730.44

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