Clinicopathological Features and Prognosis of Mucinous Breast Carcinoma
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摘要:
目的 探讨乳腺粘液腺癌(mucinous breast carcinoma,MuBC)的临床病理特征及其与预后的关系,为患者个性化治疗方案的制订提供参考。 方法 回顾性收集2008年1月至2021年9月云南省肿瘤医院收治的139例MuBC患者的临床及病理资料,将其分为76例单纯型粘液腺癌(pure mucinous breast carcinoma,PMuBC)组和63例混合型粘液腺癌(mixed mucinous breast carcinoma,MMuBC)组并进行比较。采用COX比例风险回归模型确定MuBC的预后因素,Kaplan-Meier法和log-rank检验用于生存分析。 结果 PMuBC组的10 a总生存率较MMuBC组高(98.6% vs 83.7%,P = 0.019)。PMuBC组淋巴结未受累的比例(81.6% vs 47.6%,P < 0.001)高于MMuBC组。COX多因素分析显示:肿瘤大小为T1期(P = 0.005)、肿瘤大小为T2期(P = 0.006)和PR阳性(P = 0.033)是预后的保护因素。淋巴结受累达N3期(P = 0.052)与合并远处转移(P = 0.025)是预后的危险因素。 结论 肿瘤大小、淋巴结转移情况、是否远处转移和PR状态是MuBC的独立预后因素,PMuBC较MMuBC淋巴结转移率低、PR阳性率高,预后更好。 Abstract:Objective To investigate the clinicopathological characteristics of mucinous breast carcinoma (MuBC) and its relationship with prognosis, so as to provide reference for patients to make a personalized treatment plan. Methods The clinical and pathological data of 139 MuBC patients admitted to Yunnan Cancer Hospital from January 2008 to September 2021 were retrospectively collected. They were divided into pure mucinous breast carcinoma (PMuBC) group (n = 76) and mixed mucinous breast carcinoma (MMuBC) group (n = 63), and compared between two groups. COX proportional hazards regression model was used to determine the prognostic factors of MuBC.Kaplan-Meier and log-rank tests were used for survival analysis. Results The 10-year overall survival rate of PMuBC group was higher than that of MMuBC group (98.6% vs 83.7%, P = 0.019). The proportion of uninvolved lymph nodes (81.6% vs 47.6%, P < 0.001) in PMuBC group was higher than those in MMuBC group.COX multivariate analysis showed that tumor size was stage T1 (P = 0.005), tumor size was stage T2 (P = 0.006) and positive PR (P = 0.033) were prognostic protective factors. Lymph node involvement reached stage N3 (P = 0.052) and distant metastasis (P = 0.025) are prognostic risk factors. Conclusions Tumor size, lymph node metastasis, distant metastasis and PR status are independent prognostic factors for MuBC. Compared with MMuBC, PMuBC has lower lymph node metastasis rate, higher positive rate of PR and better prognosis. -
Key words:
- Mucinous breast carcinoma /
- Pathological feature /
- Prognosis /
- Survival
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表 1 139例MuBC患者的特征及不同病理类型的比较[n(%)]
Table 1. Characteristics of 139 patients with MuBC and comparison of different pathological types [n(%)]
变量 总MuBC(n = 139) PMuBC(n = 76) MMuBC(n = 63) χ2/W P 诊断年龄 0.028 0.868 ≤45岁 54(38.8) 30(39.5) 24(38.1) > 45岁 85(61.2) 46(60.5) 39(61.9) 绝经 3.578 0.059 是 65(46.8) 30(39.5) 35(55.6) 否 74(53.2) 46(60.5) 28(44.4) T分期 4363 0.822 T1 52(37.4) 28(36.8) 24(38.1) T2 77(55.4) 42(55.3) 35(55.5) T3 7(5.0) 5(6.6) 2(3.2) T4 3(2.2) 1(1.3) 2(3.2) N分期 4486.5 < 0.001* N0 92(66.2) 62(81.6) 30(47.6) N1-2 34(24.5) 11(14.5) 23(36.5) N3 13(9.3) 3(3.9) 10(15.9) M分期 0.490 0.484 M1 4(2.9) 1(1.3) 3(4.8) M0 135(97.1) 75(98.7) 60(95.2) ER状态 0.968 0.325 阳性 130(93.5) 73(96.1) 57(90.5) 阴性 9(6.5) 3(3.9) 6(9.5) PR状态 3.801 0.051 阳性 121(87.1) 70(92.1) 51(81.0) 阴性 18(12.9) 6(7.9) 12(19.0) HER-2状态 7.038 0.031* 扩增 12(8.6) 4(5.3) 8(12.7) 未扩增 76(54.7) 49(64.5) 27(42.9) 未知 51(36.7) 23(30.3) 28(44.4) 手术方式 8.722 0.006* 未行手术 3(2.2) 2(2.6) 1(1.6) 乳房切除术 108(77.7) 52(68.4) 56(88.9) 保乳术 28(20.1) 22(28.9) 6(9.5) 化疗 6.637 0.010* 是 110(79.1) 54(71.1) 56(88.9) 否 29(20.9) 22(28.9) 7(11.1) 放疗 0.932 0.334 是 60(43.2) 30(39.5) 30(47.6) 否 79(56.8) 46(60.5) 33(52.4) 内分泌治疗 11.357 0.003* 是 106(76.3) 63(82.9) 43(68.3) 否 11(7.9) 8(10.5) 3(4.8) 未知 22(15.8) 5(6.6) 17(27.0) 结局 4.421 0.035* 死亡 8(5.8) 1(1.3) 7(11.1) 生存 131(94.2) 75(98.7) 56(88.9) *P < 0.05。 表 2 139例MuBC患者的COX单因素和多因素分析
Table 2. COX univariate and multivariate analysis of 139 MuBC patients
变量 单因素分析 多因素分析 HR(95%CI) P HR(95%CI) P 诊断年龄 ≤45岁 参考 > 45岁 0.43(0.10~1.81) 0.249 病理类型 PMBC 参考 MMBC 8.13(1.00~66.17) 0.050* 5.49(0.33~92.12) 0.237 绝经 否 参考 是 0.75(0.18~3.14) 0.693 T分期 T4 参考 T1 0.03(0.002~0.38) 0.007* 0.006(0~0.22) 0.005* T2 0.05(0.005~0.53) 0.013* 0.007(0~0.24) 0.006* T3 0(0~) 0.986 0(0~) 0.991 N分期 N0 参考 N1-2 1.29(0.12~14.26) 0.835 1.10(0.08~15.38) 0.942 N3 16.01(3.09~83.01) 0.001* 9.78(0.98~97.90) 0.052 M分期 M0 参考 M1 24.67(4.45~136.71) < 0.001* 61.03(1.66~2240.00) 0.025* ER状态 阴性 参考 阳性 22.28(0~无限大) 0.652 PR状态 阴性 参考 阳性 0.12(0.03~0.53) 0.005* 0.05(0.004~0.79) 0.033* 化疗 否 参考 是 26.36(0.006~114558.7) 0.444 放疗 否 参考 是 1.43(0.36~5.79) 0.614 手术方式 未行手术 参考 乳房切除术 0.09(0.01-0.80) 0.031* 7.55(0.21~277.94) 0.272 保乳术 0.06(0.003-0.94) 0.045* 28.68(0.23~3536.36) 0.172 *P < 0.05; CI:置信区间;HR:风险比。 -
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