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含有微乳头状结构的乳腺单纯型黏液癌临床病理特征与预后分析

2021-01-05晏佩佩蔡宏伟冯晓敏

中国现代医生 2021年31期

晏佩佩 蔡宏伟 冯晓敏

[摘要] 目的 探讨含有微乳头状结构的乳腺单纯型黏液癌(MPMC)与乳腺单纯型黏液癌(PMC)的临床病理特征与预后差异。 方法 筛选2013年4月至2020年11月在本院确诊的31例PMC病例(MPMC 15例,PMC 16例),對临床病理特征及预后进行分析。 结果 MPMC肿瘤直径更大,Luminal B型比例高(P<0.05),MPMC中级别核级比例及淋巴结转移率呈增高趋势。两组脉管侵袭率、ER、PR和HER2、Ki67阳性率比较,差异无统计学意义(P>0.05)。两组各有1例复发转移,均无死亡病例。 结论 与PMC相比,MPMC侵袭力有一定程度的增加,两组预后无明显差异。

[关键词] 微乳头;黏液癌;乳腺;临床病理

[中图分类号] R737.9          [文献标识码] B          [文章编号] 1673-9701(2021)31-0142-03

[Abstract] Objective To investigate the difference in clinicopathological characteristics and prognosis between pure mucinous carcinoma of breast with micropapillary feature (MPMC) and pure mucinous carcinoma of breast (PMC). Methods A total of 31 PMC patients (15 MPMC patients and 16 PMC patients) diagnosed in our hospital from April 2013 to November 2020 were screened. The clinicopathological characteristics and prognosis were analyzed. Results The diameter of MPMC tumor was larger and proportion of Luminal B type was higher(P<0.05). The proportion of middle nuclear grade and rate of lymph node metastasis showed an increasing trend in MPMC. There were no statistical differences in vascular invasion rate,ER,PR,HER2 and Ki67 positive rate between the two groups(P>0.05).There was 1 patient of recurrence and metastasis in each group, and there was no death. Conclusion Compared with PMC, the invasiveness of MPMC is increased to a certain extent. There is no significant difference in prognosis between the two groups.

[Key words] Micropapillary; Mucinous carcinoma; Breast; Clinicopathology

乳腺单纯型黏液癌(Pure mucinous carcinoma of the breast,PMC)的形态温和、含有大量细胞外黏液,预后良好[1],细胞外黏液可能限制了肿瘤扩散[2]。浸润性微乳头状癌(Invasive micropapillary carcinomas,IPMC)侵袭性强,预后差[3]。2002年Ng等[4]首次报道了含有微乳头状结构的单纯型黏液癌(Micropapillary pattern of pure mucinous carcinoma of the breast,MPMC)病例,提出将其作为黏液癌的一种新亚型。Mukherjee等[5]认为微乳头状结构可能改变肿瘤侵袭性行为,Bal等[6]认为MPMC是惰性的,微乳头状结构与预后无相关性。目前关于MPMC的研究结论不一致,因此,本研究收集了15例MPMC进行研究分析,探讨微乳头状结构是否会增加PMC的侵袭性,影响预后,现报道如下。

1 资料与方法

1.1 一般资料

收集2013年4月至2020年11月南京市妇幼保健院确诊为PMC的病例31例,均为女性,其中15例为MPMC。

1.2 方法

所有标本经10%中性福尔马林固定、包埋、4 μm厚度连续切片、HE染色后镜下观察,用Envision两步法行免疫组化染色,并设立阴性、阳性对照。免疫组化所用一抗雌激素受体(Estrogen receptor,ER)、孕激素……

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