中国癌症杂志 ›› 2021, Vol. 31 ›› Issue (5): 408-418.doi: 10.19401/j.cnki.1007-3639.2021.05.007

• 论著 • 上一篇    下一篇

83例多发肺腺癌患者的临床病理学特征分析

彭子珊,孔 辉,鲍 真,赵红杏,刘 鑫,卢韶华   

  1. 复旦大学附属中山医院病理科,上海 200032
  • 出版日期:2021-05-30 发布日期:2021-05-31
  • 通信作者: 卢韶华 E-mail: lushaohua2010@126.com
  • 基金资助:
    国家自然科学基金青年项目(82002430);上海市卫生健康委员会卫生行业临床研究专项青年项目(20204Y0227);中山医院青年科学基金(2020ZSQN69)。

Clinicopathological analysis of 83 cases of multifocal lung adenocarcinoma

PENG Zishan, KONG Hui, BAO Zhen, ZHAO Hongxing, LIU Xin, LU Shaohua#br#   

  1. Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
  • Published:2021-05-30 Online:2021-05-31
  • Contact: LU Shaohua E-mail: lushaohua2010@126.com

摘要: 背景与目的:多发肺癌(multifocal lung cancer,MLC)的发病率逐年上升,且多原发肺腺癌(multiple primary lung adenocarcinoma,MPLA)和肺内转移(intrapulmonary metastases,IM)的鉴别诊断一直是临床及病理学诊断的难点。通过分析多发肺腺癌(multifocal lung adenocarcinoma,MLA)的临床病理学特征、基因突变情况及预后,以鉴别诊断MPLA及IM。方法:回顾性分析2016年1月—2017年12月复旦大学附属中山医院83例经术后病理学检查诊断为MLA的患者资料,并进行随访。结合病理形态学分析及基因突变分析鉴别诊断MPLA和IM。采用χ 2 检验或Fisher精确检验分析组间临床病理学特征的差异。生存分析采用Kaplan-Meier生存曲线及COX回归分析。结果:83例MLA患者中,根据病理形态学分析结果,50例为MPLA,33例为IM;9例患者未检测出任何基因突变,鉴别结果以病理形态学分析结果为准;18例患者的病理形态学分析结果与基因分析结果不一致,以基因分析结果为准。结合病理形态学及基因突变分析结果,MPLA为41例,IM为42例。患者3年总生存(overall survival,OS)率为93.98%,3年无病生存(disease-free survival,DFS)率为77.11%。MPLA、IM患者OS率无显著差异,但IM患者DFS率更差。单因素分析表明,男性、淋巴管/血管侵犯及表皮生长因子受体(epidermal growth factor receptor,EGFR)野生型是OS率的危险因素,淋巴管/血管侵犯、综合标准鉴别为IM是DFS率的危险因素。多因素分析表明,EGFR野生型是OS率的独立危险因素,综合标准鉴别为IM是DFS率的独立危险因素。结论:病理组织学是鉴别诊断MPLA和IM的重要手段,尤其是主要病理学亚型及非黏液贴壁型是鉴别要点,但不同病理科医师间存在主观性。基因检测可作为两者鉴别的重要辅助方法以提高诊断效率。诊断为IM的MLA患者术后复发风险更高,定期复查和及时治疗对患者预后有重要意义。

关键词: 多原发肺腺癌, 肺内转移, 病理形态学, 基因突变, 预后

Abstract: Background and purpose: As the incidence of multifocal lung cancer (MLC) is increasing in the world, differentiation between multiple primary lung adenocarcinoma (MPLA) and intrapulmonary metastases (IM) has been a problem. This study was designed to analyze the clinicopathological features of multifocal lung adenocarcinoma (MLA) and distinguish MPLA from IM. Methods: We systematically reviewed 83 patients with MLA at Zhongshan Hospital of Fudan University from January 2016 to December 2017. Pathologic histological analysis combined with gene mutation analysis was employed to distinguish MPLA from IM. Chi-square or Fisher exact test was applied to compare variables between MPLA and IM groups. Kaplan-Meier plots and COX regression were applied for survival analysis. Results: According to the results of histological analysis, there were 50 MPLA cases and 33 IM cases, while there were 41 MPLA cases and 42 IM cases combined with the results of gene mutation analysis. The histological results of 18 cases were contradicted with gene mutation analysis. The 3-year overall survival (OS) rate of 83 patients was 93.98%, and the 3-year disease-free survival (DFS) rate was 77.11%. Survival analysis revealed that there was no statistically significant difference in OS rate between MPLA and IM groups, while patients diagnosed with IM were statistically associated with worse DFS rate. Univariate analysis showed that male, lymphatic/vascular invasion and wild-type epidermal growth factor receptor (EGFR) were significantly correlated with OS rate. Lymphatic/vascular invasion and comprehensive MLA classification were significantly correlated with DFS rate. Wild-type EGFR was an independent predictor for OS. Comprehensive MLA classification was an independent predictor for DFS rate. Conclusion: Pathological histological analysis was an important way of distinguishing MPLA from IM, and gene mutation analysis could provide important clues. MLA classified as IM was significantly correlated with worse DFS rate. MLA patients diagnosed with IM should be reviewed periodically for better survival.

Key words: Multiple primary lung adenocarcinoma, Intrapulmonary metastases, Pathologic histology, Gene mutation, Prognosis