北京口腔医学:乳腺癌术后腮腺转移1例

2018-04-09 韩博 李尚慧 赵国栋 北京口腔医学

患者,女,65岁,2013-10-29因右腋下肿物2个月入院。

【一般资料】

患者,女,65岁,

【主诉】

2013-10-29因右腋下肿物2个月入院。

【现病史】

经查右乳头后方可及2.0cm×1.5cm肿块,右腋下可及一1.3cm×1.1cm肿大淋巴结。穿刺病理报:右乳腺浸润性癌,右腋下转移性腺癌结节,ER(+),PR(2+),Her-2(-),Ki-67:20%。因患者依从性较差,家属当时拒绝手术治疗。行PC方案化疗1周期,口服来曲唑,肿物明显缩小。后经反复沟通,患者家属接受手术治疗方案。2014-6-10行右乳癌改良根治术。术后病理报:右乳浸润性导管癌II级伴钙化(中度化疗反应)(图1),未见明显脉管癌栓及神经侵犯,乳头可见癌,基底未见癌,腋下淋巴结未见癌转移0/3,三站淋巴结未见癌0/3,ER(+)(图2),PR(-),Her-2(-),Ki-67:5%。患者术后配合较差,未行内分泌治疗。患者2016-1-5主因右耳下肿物1个月,增大明显10日入院。


图1  术后乳腺标本病理(HE,×400)
 
图2  乳腺标本免疫组化ER(+)

【体格检查】

右腮腺下极可及一约3.0×1.5cm肿物,质韧,表面尚光滑,界限尚清,活动度可,无面瘫征。

【辅助检查】

B超提示:右腮腺内多发低回声结节,最大约3.2×1.5cm,界尚清,内部回声不均匀。左腮腺未及占位。余相关检查未见可疑乳腺癌转移征象。

【治疗】

术中见:右侧腮腺下极肿物,质地坚韧,与周围组织界限不清。术中快速考虑:低分化恶性肿瘤。术中沟通家属表示拒绝扩大手术治疗。仅行腮腺下极肿物切除。常规病理+免疫组化,结合病史诊断:乳腺癌转移(图3,4)。CK5/6(灶+),P63(+),SMA(-),LCK(灶+),ER(-),PR(-),Her2(2+),GATA3(+)(图5,6),E-cad(+),Ki-6790%。患者家属拒绝术后放疗及进一步治疗措施。


图3  腮腺肿物切除术大体标本
 
图4  腮腺肿物病理,箭头指示肿瘤病灶区域(HE,×200)
 
图5  腮腺肿物免疫组化Her-2(2+)

图6 腮腺肿物灶免疫组化GATA3(3+)

【讨论】

乳腺癌腮腺转移极为罕见。检索知网、万方数据库,国内乳腺癌腮腺转移报道2例。乳腺原发灶及腮腺转移灶均在同侧。检索Pubmed,检索到18例乳腺癌腮腺转移病例。同侧转移8例,对侧转移9例,1例失访。转移病理类型以浸润性导管癌略多(12/21)。本例患者也为浸润性导管癌同侧腮腺转移。乳腺癌腮腺转移的机制不明。乳腺癌可能经过淋巴或血运转移,较易于转移至肺、肝、骨、脑等器官。肿瘤细胞通过与基质细胞以及微环境的交互作用,常见的转移靶器官存在肿瘤适宜生存并易于改造的微环境。然而为何乳腺癌细胞在转移过程中对腮腺存在倾向性,推测可能存在肿瘤细胞的淋巴及血运转移,并且肿瘤细胞有嗜含丰富淋巴组织腺体的特性,或腮腺淋巴组织对来源于乳腺的肿瘤细胞可能存在特殊的亲和力及选择吞噬,微环境适宜肿瘤细胞生存,从而导致肿瘤细胞的滞留及转移灶的形成。术前诊断要结合病史。乳腺癌治疗后腮腺区占位的诊断需提高警惕,结合病史应警惕转移可能性。可采取穿刺活检协助术前确诊。有报道腮腺唾液的肿瘤标记物检测,或可有助于腮腺肿瘤诊断的辅助。GATA-3在乳腺癌,尤其是乳腺转移癌中的敏感性较高。GATA-3在本例腮腺转移灶的确诊中发挥了重要作用。腮腺区乳腺癌转移灶的治疗尚无标准方案。报道中以腮腺全叶切除术居多,其次联合放疗,化疗以及激素,预后较差。

原始出处:

韩博, 李尚慧, 赵国栋,等. 乳腺癌术后腮腺转移1例报道[J]. 北京口腔医学, 2017, 25(1):45-46.

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    2018-04-23 1e123e91m09(暂无匿称)

    学习

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    2018-04-23 1e145228m78(暂无匿称)

    学习了.谢谢作者分享!

    0

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    2018-04-11 mfx799
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    2018-04-10 yfjms

    学习

    0

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2018年3月21日,第11届欧洲乳腺癌大会(EBCC-11)于西班牙巴塞罗那举行。会议第二天上午,来自荷兰、意大利等国家的讲者分别对乳腺癌寡转移病灶的生物学特性、局部治疗价值、颅内外寡转移灶的局部处理方式进行了系统梳理,现将报告精要整理如下。

Mol Cell:揭示乳腺癌表观遗传调控重要发现

近日,《细胞》杂志子刊《分子细胞》(Molecular Cell)在线发表了厦门大学药学院刘文教授课题组的研究成果“JMJD6 Licenses Estrogen Receptor α-Dependent Enhancer and Coding Gene Activation by Modulating the Recruitment of the CARM1/MED12 Co-activator

Oncogene:小分子GTP酶Rab34参与乳腺癌调控机制

近日,Nature旗下的肿瘤学领域著名国际期刊Oncogene在线发表了厦门大学药学院王团老教授课题组的研究性论文“Rab34 regulates adhesion, migration, and invasion of breast cancer cells”。该成果首次揭示了小分子GTP酶Rab34参与调控乳腺癌的相关功能和机制。

Nature:癌症百年谜题终遭破解!有望带来乳腺癌全新疗法

大约在100年前,著名的生理学家Otto Warburg教授与他的同事们发现了癌细胞一个有趣的现象:和正常细胞相比,癌细胞要消耗更多的葡萄糖。这听起来很合理——癌细胞是一类需要快速分裂和增殖的恶性细胞,当然需要更多的能量。

PLOS ONE:肿瘤微环境如何促进乳腺癌细胞迁移

肿瘤微环境(TME)可以促进肿瘤细胞的侵袭和转移。促癌微环境转化的一个重要步骤是正常基质成纤维细胞向癌相关成纤维细胞(CAF)的转化。

中国蒽环类药物治疗乳腺癌专家共识

20 世纪80 年代,蒽环类药物(anthracyclines)以其卓越的疗效成为乳腺癌术后辅助化疗的里程碑。在新型药物涌现、多种治疗模式并存的循证医学时代,即使重新审视,仍可发现蒽环类药物不仅在乳腺癌术后辅助化疗中占有极其重要的地位,而且在新辅助化疗、晚期乳腺癌患者治疗中也据有一席之地。为了进一步明确蒽环类药物在乳腺癌中的治疗作用,准确评估蒽环类药物的临床疗效及不良反应,减少治疗的盲目性并增强规