北京大学学报(医学版) ›› 2018, Vol. 50 ›› Issue (5): 811-815. doi: 10.19723/j.issn.1671-167X.2018.05.008

• 论著 • 上一篇    下一篇

肾细胞癌骨转移的临床与病理分析

黄子雄,杜依青,张晓鹏,刘士军,徐涛△   

  1. (北京大学人民医院泌尿外科, 北京100044)
  • 出版日期:2018-10-18 发布日期:2018-10-18
  • 通讯作者: 徐涛 E-mail: xutao@pkuph.edu.cn

Clinical and pathological analysis of renal cell carcinoma bone metastasis

HUANG Zi-xiong, DU Yi-qing, ZHANG Xiao-peng, LIU Shi-jun, XU Tao△   

  1. (Department of Urology, Peking University People’s Hospital, Beijing 100044, China)
  • Online:2018-10-18 Published:2018-10-18
  • Contact: XU Tao E-mail: xutao@pkuph.edu.cn

摘要: 目的:分析肾细胞癌骨转移(renal cell carcinoma bone metastasis,RCC-BM)的临床及病理学特点,进一步了解其发生、发展规律。方法:回顾2003年7月至2017年11月间RCCBM患者的资料,包括患者一般情况,临床与影像学特征,病理学亚型、骨转移灶免疫组织化学染色结果等病理学特征,进行描述性分析和差异性分析。结果:共纳入113例RCC-BM患者进入研究,患者性别比(男 ∶女)约为4 ∶1,平均年龄59.39岁。肾癌骨转移灶影像学均表现为溶骨性破坏,常见的骨转移部位为脊柱(46.0%)及骨盆(38.9%), 28.3%的RCC-BM患者同时合并其他部位远处转移,46.0%的患者表现为同时性转移[骨转移时间(time to bone metastasis, TTBM)=0],其余表现为异时性转移(TTBM>0),异时性转移患者的中位TTBM为48个月。113例患者中94.7%为肾透明细胞癌骨转移。对104例患者的骨转移病灶进行免疫组织化学染色检查,同时性RCC-BM患者骨转移灶的血管内皮生长因子(vascular endothelial growth factor,VEGF)阳性率与异时性RCC-BM患者相比有升高趋势(P=0.097),碳酸酐酶(carbo-nic anhydrase, CA)-Ⅸ阳性率有降低趋势(P=0.100);肾透明细胞癌骨转移灶的表皮生长因子受体(epidermal growth factor receptor, EGFR)阳性率显著高于非透明细胞肾癌的骨转移灶(P<0.05)。结论:RCCBM中男性、中青年患者较多,约80%骨转移发生于脊柱、骨盆等中轴骨部位。不同TTBM亚组间CA-Ⅸ阳性率存在一定差异,可预测RCC-BM预后。VEGF阳性率在同时性RCC-BM亚组中有增高趋势,EGFR阳性率在透明细胞癌亚组中显著增高,可能给RCC-BM的诊断、预后分析、靶向治疗抉择等提供参考。

关键词: 肾细胞癌, 肿瘤转移, 骨, 临床病理学

Abstract: Objective: To analyze the clinical and pathological characteristics of renal cell carcinoma bone metastasis (RCC-BM) patients. Methods: Data of RCC-BM patients from July 2003 to November 2017 were retrospectively reviewed.  The patients’ baseline characteristics (age, gender), tumor characteristics [specific sites of bone metastasis, time to bone metastasis (TTBM), imaging features of bone disease, coexistence of other metastasis], as well as pathological features (histological classification of primary and bone metastasis, immunohistochemical stain results) were collected. Descriptive analysis and difference analysis were used. Results: A total of 113 RCC-BM patients were enrolled with the gender ratio (male ∶female) of 4 ∶1, mean age of 59.39 years, and all present of osteolysis bone lesions. The common sites of bone metastasis were vertebra (46.0%) and pelvis (38.9%). Other distant metastasis sites coexisted in 28.3%, while 48.18% RCC-BM patients presented with synchronous metastasis (TTBM=0). The median TTBM for metachronous metastasis was 48 months. The majority in this cohort were determined to have primary tumor of clear cell carcinoma. After immunohistochemical examination to 104 RCC-BM patients and sub-group analysis, tendencies of higher positive rates of vascular endothelial growth factor (VEGF) was also found in synchronous group (P=0.097) while tendencies of higher positive rates of carbonic anhydrase (CA)-Ⅸ was found in the same group (P=0.100). The patients with clear cell RCC-BM had a significantly higher positive expression of epithelial growth factor receptor (EGFR, P<0.05) than those with non-clear cell RCC-BM group. Conclusion: More male and younger patients with metastatic lesions in axial skeleton were found in this cohort. Tendencies in the expression of CA-Ⅸ and VEGF in different TTBM sub-group and EGFR in different histology-derived subgroup indicate that they might be associated with risk and prognostic factors and support further target therapies of RCC-BM.

Key words: Renal cell carcinoma, Neoplasm metastasis, Bones, Clinical pathology

中图分类号: 

  • R737.11
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