肺肉瘤样癌的CT表现(附8例报告)  

Arcomatoid Carcinoma of Lung:CT Features of Eight Cases

作　　者：张赟[1,2] 谢传淼[1,2] 李建鹏[1,2] 尹韶涵[1,2] 沈静娴[1,2] 

机构地区：[1]中山大学华南肿瘤学国家重点试验室,510060 [2]中山大学肿瘤防治中心医学影像与介入中心

出　　处：《中国CT和MRI杂志》2009年第5期30-32,共3页Chinese Journal of CT and MRI

摘　　要：目的肺肉瘤样癌是一种少见的肺恶性上皮肿瘤,较一般肺癌更具侵袭性,预后差,临床表现无特异性,误诊率较高。本文通过分析8例肺肉瘤样癌的临床和影像学资料,并复习相关文献,提高对该病的认识。方法回顾性分析8例经病理证实的肺肉瘤样癌的CT表现,包括肿瘤的部位、大小、形态、边缘、强化方式、胸膜侵犯等。结果粘8例肺肉瘤样癌中,中央型1例,周围型7例,7例位于上叶,1例位于下叶。最大径3.4cm～13.0cm,平均8.5cm,其中<5.0cm者1例,5.0～～8.0cm者2例,>8.0cm者5例。5例边缘清楚,3例边缘不清。增强扫描2例呈均匀强化,6例病变周围呈不规则强化,中央见大片低密度区。8例均侵犯胸膜。结论肺肉瘤样癌的CT表现具有一定特点,表现为肺内体积较大的肿块,周围型多见,增强扫描周围呈不规则或厚环状强化,中央见大片状低密度区,易侵犯邻近胸膜和胸壁。Objective Sarcomatoid carcinoma of lung is a rare lung carcinoma, which is more aggressive and has a poorer prognosis than ordinary lung carcinomas. This study was to analyze clinical and CT features ofsarcomatoid carcinoma of lung, and to improve the recognition and diagnosis of the disease. Methods Eight cases of sarcomatoid carcinoma of lung proven pathologically were included. CT findings with regard to the location, size, contour, margin, contrast enhancement pattern, invasion of pleura or chest wall. Results In 8 cases, 1 case was of central type, 7 cases were of periphery type Seven cases were located in the upper lobes, 1 in the lower lobe. Sizes of lesions were from 3.4cm to 13.0cm in longest diameter. Two lesions showed homogeneous enhancement, 6 lesions showed central low-attenuation areas with substantial enhancement in the tumor periphery. All eight patients had pleural invasion. Conclusion CT findings of sarcomatoid carcinoma of lung have characteristic, which appears as large peripheral lung neoplasms with a central low-attenuation and frequently invade the pleura and chest wall.

关 键 词：肺 肉瘤样癌 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]