不同分型浸润性乳腺癌与腋窝淋巴结转移的相关性

目的:研究不同分型浸润性乳腺癌与腋窝淋巴结转移的相关性。方法:收集2013年1月—2015年1月于上海新华医院崇明分院接受乳腺癌手术治疗的102例患者。将所有受试者按照免疫组织化学及HER2荧光原位杂交结果的不同分为Luminal A型、Luminal B型、HER2阳性型及三阴性乳腺癌。比较不同分型乳腺癌患者的腋窝淋巴结转移情况、病理参数及预后情况。并以Logistic分析法明确乳腺癌患者预后不良的影响因素。结果:102例乳腺癌患者腋窝淋巴结转移率为34.65%,其中Luminal A型、Luminal B型、HER2阳性型及三阴性乳腺癌的腋窝淋巴结转移率分别为24.00%、41.46%、45.45%及14.29%。不同分型乳腺癌患者的腋窝淋巴结转移率差异无统计学意义(均P>0.05)。肿瘤直径≥5 cm的乳腺癌患者腋窝淋巴结转移率高于<5 cm的患者(P<0.05)。三阴性乳腺癌患者局部复发率高于其他分型乳腺癌患者,且HER2阳性型、三阴性乳腺癌患者的远处转移率均高于LuminalA型、LuminalB型,而三阴性乳腺癌患者存活率均低于其他分型乳腺癌患者(均P&l...     

乳腺癌组织中HER2、ERα、ERβ、PR的表达及其相关性分析

目的探讨雌激素受体α（ERα）、雌激素受体β（ERβ）、孕激素受体（PR）、人类表皮生长因子受体2（HER2）在乳腺癌组织中的表达及其与TNM分期和腋窝淋巴结状况的关系。方法随机选择我院在2004年12月至2007年12月收治的HER2高表达（＋＋＋）51例与无表达（-）53例乳腺浸润性导管癌病例，分别检测乳腺癌组织的ERα、ERβ、PR的表达水平，分析其与TNM分期、腋窝淋巴结转移等临床指标的相关性。结果104例乳腺癌患者，TNM分期为I期的占14．42％，Ⅱ期占62．50％，Ⅲ期占19．23％，Ⅳ期占3．85％；HER2阳性的淋巴结转移率为41．18％，HER2阴性的转移率为47．5％；ERα、ERβ、PR的阳性表达率分别为52．88％、63．46％、73．08％。ERβ与ERα、PR的表达呈正相关（P〈0．01），与HER2的表达负相关（P〈0．01）；ERα与PR的表达正相关（P〈0．01），与HER2负相关（P〈0．01），PR与HER2的表达负相关（P〈0．05）；ERα、ERβ、PR、HER2的表达与淋巴结转移情况及TNM分期无显著相关性。结论HER2作为乳腺癌预后不良的重要指标与作为乳腺癌预后良好的重要指标ERα、ERβ、PR的表达呈负相关，与TNM分期及腋窝淋巴结转移状态未显示明显相关性。     

新辅助化疗后腋窝淋巴结阳性转阴乳腺癌患者前哨淋巴结活检的临床价值

背景与目的：乳腺癌是常见的女性恶性肿瘤,前哨淋巴结活检（SLNB）是早期腋窝淋巴结阴性乳腺癌的标准处理模式,但是经新辅助化疗（NAC）后腋窝淋巴结转阴患者的SLNB存在很大争议,已成为关注焦点。本研究探讨NAC后腋窝淋巴结转阴的乳腺癌患者SLNB的可行性及影响SLNB假阴性率的因素。方法：收集2020年7月—2022年7月海口市人民医院腋窝淋巴结阳性乳腺癌经NAC后腋窝淋巴结降期为阴性的患者45例临床资料,所有患者经染色法行SLNB随后行腋窝淋巴结清除（ALND）,分析前哨淋巴结检出率,假阴性率,准确率等指标,并对可能影响SLNB的假阴性率的因素进行分析。结果：SLNB成功率93.3%,检出前哨淋巴结138枚;准确率90.4%,假阴性率12.5%。肿瘤大小（≤5 cm、>5 cm）与NAC前淋巴结状态（1枚、2枚、≥3枚）对SLNB的成功率、准确率、假阴性率均无明显影响（均P>0.05）;前哨淋巴结检出数目（1枚、2枚、≥3枚）对SLNB准确率（P=0.009）与假阴性率（P=0.002）有明显影响,检出数目越多准确率越高、假阴性率越低。结论：腋窝淋巴结阳性经NAC后转阴的...     

乳腺癌c-erbB-2与雌孕激素受体及淋巴结转移的相关性分析

目的：分析乳腺癌c-erbB-2的表达与ER、PR，以及腋窝淋巴结、肿瘤大小、病理类型的相关性。方法：收集术前未行新辅助化疗而行手术切除加腋窝清扫的乳腺癌病人346例，采用免疫组化法检测c-erbB-2、ER及PR；比较c-erbB-2表达与ER、PR、腋窝淋巴结、肿瘤大小以及病理类型之间的关系。结果：c-erbB-2阳性表达者占48．2％，腋窝淋巴结有转移者的c-erbB-2阳性表达为69．6％，而淋巴结阴性者则为34．6％（P〈0．001）。ER、PR均阳性且c-erbB-2表达也阳性者为38．1％；而ER、PR均阴性、c-erbB-2阳性者达64．6％（P〈0．001）。仅ER阳性和阴性者的c-erbB-2阳性表达分别是40．7％和69.2％（P（0．001）。仅PR阳性和阴性者的c-erbB-2阳性分别为46．4％和49．7％（P〉0．05）。〈2cm和2～5cm肿瘤的c-erbB-2阳性率分别是47．1％和48．8％（P〉0．05）。导管内癌和黏液癌的c-erbB-2表达阳性率分别达73．8％和60．0％。结论：c-erbB-2阳性表达与腋窝淋巴结的转移呈正相关，与ER呈负相关，与PR和肿瘤大小不相关。c-erbB-2是判断乳腺癌预后的良好指标。     

三阳性与HER2过表达型乳腺癌患者新辅助化学药物治疗的疗效对比

目的 对比三阳性乳腺癌（triple positive breast cancer,TPBC）与人表皮生长因子受体2(human epidermal growth factor receptor 2,HER2)过表达型乳腺癌患者的临床病理特征以及接受新辅助化学药物治疗（neoadjuvant chemotherapy,NACT）后的疗效差异。方法 回顾性收集2019年1月至2021年7月期间西南医科大学附属医院收治的符合本研究入组条件的TPBC和HER2过表达型乳腺癌患者,比较二者的临床病理特征及接受NACT后的疗效差异,同时采用logistic回归多因素分析影响NACT疗效的风险因素。HER2过表达型乳腺癌为HER2阳性、雌激素受体（estrogen receptor,ER）和孕激素受体（progesterone receptor,PR）阴性,TPBC为HER2、ER和PR均为阳性。疗效评价指标采用病理完全缓解（pathological complete response,pCR）,即原发灶及腋窝淋巴结均无乳腺浸润性癌细胞成分但允许乳腺内有导管内癌的成分存在（ypT0/isypN0）...     

Ki-67、P53在Her-2阴性乳腺癌中的表达与ER、腋窝淋巴结转移相关性

目的观察Ki-67、P53在Her-2阴性乳腺癌组织中的表达与ER及腋窝淋巴结转移相关性,探讨其临床意义,提示乳腺癌预后。方法 202例Her-2阴性乳腺患者,根据ER表达情况,将患者分为ER阴性组和ER阳性组,其中ER阴性组99例,ER阳性组103例,研究Ki-67、P53在Her-2阴性乳腺癌组织中的表达与ER及腋窝淋巴结转移相关性。结果 Her-2阴性乳腺癌组织中Ki-67增殖指数在ER阴性组表达明显高于ER阳性组,差异有统计学意义(P0.05),Ki-67增殖指数在腋窝淋巴结阳性组明显高于淋巴结阴性组,差异有统计学意义(P0.05)。P53在ER阴性组表达明显高于ER阳性组,差异有统计学意义(P0.05),P53表达在腋窝淋巴结阳性组和阴性组差异无统计学意义(P0.05)。结论 Her-2阴性乳腺癌组织中Ki-67增殖指数与ER阴性表达正相关,且腋窝淋巴结转移可能性大,P53与ER阴性表达正相关,与腋窝淋巴结转移无明显相关。提示Ki-67、P53可能为Her-2阴性乳腺癌的不良预后因素。     

乳腺癌新辅助治疗后HER-2阳转阴1例

患者, 55岁, 绝经后女性, 因"发现左乳包块1个月余"入院。乳腺超声检查提示:左乳内可见2个低回声结节, 大小为:2.6 cm×0.9 cm×1.1 cm(2点半方向), 0.7 cm×0.5 cm×0.7 cm(2点方向), 左侧腋窝可见数个淋巴结回声。(乳腺原发灶及腋窝淋巴结)穿刺病理结果:左乳2点、2点半免疫组化检查:乳腺浸润性癌(非特殊类型), 左侧腋窝淋巴结检查可见癌组织;(乳腺原发灶及腋窝淋巴结)免疫组化检查:ER(3+, 90%), PR(3+, 90%), HER-2(2+, 不确定阳性), Ki-67(+, 约30%)。FISH检查结果:HER-2基因扩增(图1)。全身评估未见远处转移, 按EC(HP)-T(HP)方案:多柔比星脂质体35 mg/m2+环磷酰胺600 mg/m2(曲妥珠单抗首次8 mg/kg, 之后6 mg/kg+帕妥珠单抗首次840 mg, 之后420 mg)—多西他赛80 mg/m2(曲妥珠单抗+帕妥珠单抗)行新辅助化疗联合靶向治疗。8个周期化疗总体评价:部分缓解(PR)。随后行乳腺癌改良根治术, 术后病理检查提示:(新辅助化疗后, 左侧)乳腺...     

HER2阳性乳腺癌分子靶向治疗药物临床应用的研究进展

分子靶向治疗已经成为乳腺癌的有效治疗手段之一。研究表明,HER2阳性乳腺癌恶性程度高,预后差,而应用分子靶向药物能够明显改善此类乳腺癌患者的预后。近年来,针对乳腺癌HER2分子的靶向治疗药物先后批准上市,如曲妥珠单抗、拉帕替尼、帕妥珠单抗、T-DM1等,使HER2阳性乳腺癌患者的生存期显著延长,就这些药物临床应用的研究进展进行综述。     

乳腺癌哨兵淋巴结活检126例的临床研究

目的 探讨哨兵淋巴结活检（SLND）在临床Ⅰ，Ⅱ期乳腺癌中应用的可行性。方法 使用亚甲蓝对126例临床Ⅰ，Ⅱ期乳腺癌进行SLND，随后行腋窝淋巴结清扫，腋窝阴性患者再行淋巴结的多水平切片和免疫组化（IHC）检查。结果 SLND成功率75．4％，灵敏度91．7％，特异度100％，阳性预测价值100％，阴性预测价值95．2％。术中哨兵淋巴结（SN）冰冻病理学检查的准确率93．4％，淋巴结多水平切片IHC发现35例中1例患者SN有微小转移（2．9％）。结论 SLND可以准确预测乳腺癌患者腋窝淋巴结状态，SN多水平片IHC检测有助于提高SLND的敏感性。     

乳腺癌哨兵淋巴结转移与肿瘤大小和癌基因及激素受体表达关系的临床观察

目的：探讨影响乳腺癌哨兵淋巴结转移的相关因素。方法：回顾性分析近2年来原发性乳腺癌115例临床资料。行哨兵淋巴结活检（SLNB）与腋窝淋巴结清扫术（ALND）;肿瘤直径≤2cm和2.1~4cm;免疫组化法检测肿瘤组织中C erbB 2，（HER 2/neu）p53，nm23，ER和PR的表达状态及对哨兵淋巴结（SN）转移的影响程度。结果：115例乳腺癌SN检出110例（检出率95.65％）,哨兵淋巴结与腋淋巴结病理结果完全符合，同时相关资料齐全可供分析的95例。其中SN转移36例（37.89％）,SN无转移59例（62.11％），平均每例检出淋巴结1.97枚。SN转移率在肿瘤直径≤2cm组和2.1~4cm组分别是21.43%（9/42）和50.94%(27/53)，两组相比较，随着原发肿瘤的增大SN阳性率相应提高并差异显著（P＜0.01）。SN转移率C erbB 2阴性组为24.32％（9/37），阳性组为46.55％（27/58），两组相比，随着C erbB 2表达增强，SN转移率显著提高并有统计学差异（P＜0.05）。p53, nm23, ER和 PR表达和不表达时影响SN的转移率，但无统计学意义（P＞0.05）。 结论：乳腺癌原发肿瘤大小，C erbB 2表达状态是预测SN转移状态的有用指标。     

Sentinel lymph node biopsy examination for breast cancer patients with clinically negative axillary lymph nodes after neoadjuvant chemotherapy

BACKGROUND: The feasibility and accuracy of sentinel lymph node (SLN) biopsy examination for breast cancer patients with clinically node-negative breast cancer after neoadjuvant chemotherapy (NAC) have been investigated under the administration of a radiocolloid imaging agent injected intradermally over a tumor. In addition, conditions that may affect SLN biopsy detection and false-negative rates with respect to clinical tumor response and clinical nodal status before NAC were analyzed. METHODS: Seventy-seven patients with stages II and III breast cancer previously treated with NAC were enrolled in the study. All patients were clinically node negative after NAC. The patients then underwent SLN biopsy examination, which involved a combination of intradermal injection over the tumor of radiocolloid and a subareolar injection of blue dye. This was followed by standard level I/II axillary lymph node dissection. RESULTS: The SLN could be identified in 72 of 77 patients (identification rate, 93.5%). In 69 of 72 patients (95.8%) the SLN accurately predicted the axillary status. Three patients had a false-negative SLN biopsy examination result, resulting in a false-negative rate of 11.1% (3 of 27). The SLN identification rate tended to be higher, although not statistically significantly, among patients who had clinically negative axillary lymph nodes before NAC (97.6%; 41 of 42). This is in comparison with patients who had a positive axillary lymph node before NAC (88.6%; 31 of 35). CONCLUSIONS: The SLN identification rate and false-negative rate were similar to those in nonneoadjuvant studies. The SLN biopsy examination accurately predicted metastatic disease in the axilla of patients with tumor response after NAC and clinical nodal status before NAC. This diagnostic technique, using an intradermal injection of radiocolloid, may provide treatment guidance for patients after NAC.     

Intraoperative palpation for clinically suspicious axillary sentinel lymph nodes reduces the false-negative rate of sentinel lymph node biopsy in breast cancer

Axillary sentinel lymph node biopsy (SLNB) is widely used to identify the first lymph node draining breast tumors. When the sentinel lymph node is free of metastasis, axillary dissection is avoided because the rest of the nodes are expected to be negative as well. A false-negative rate of 5% is considered acceptable. In the case of a false-negative SLNB, adjuvant local and systemic treatments might be suboptimal. We assessed the effect of intraoperative axillary palpation for clinically suspicious lymph nodes that are not otherwise detected by radioactive tracer or blue dye on the false-negative rate of SLNB in breast cancer patients. Our prospective database of patients having surgery for primary invasive breast cancer and who had a SLNB from 2000 to 2004 was reviewed. Only patients with clinically negative nodes preoperatively were included. The procedure included preoperative injection of radiotracer, with dye injection as backup, and intraoperative palpation of the axilla for suspicious lymph nodes that were not radioactive or blue. Of the 290 patients, 89 (30.7%) had sentinel node involvement by tumor. Seven patients had clinically suspicious nodes identified solely by palpation and not by tracer, in addition to sentinel lymph nodes detected by tracer. In five of the seven patients, the nodes harbored metastasis. In four of these five patients (4.5% of the 89 patients with axillary involvement), the palpable nodes were the only ones involved. A generous axillary incision and systematic palpation of the axilla reduces the false-negative rate and should be a part of the SLNB procedure.     

Nonimage-guided fine needle aspiration biopsy of palpable axillary lymph nodes in breast cancer patients

We report the utility of office-based, nonimaged guided fine needle aspiration of palpable axillary lymph nodes in breast cancer patients. We examine the sensitivity and specificity of this procedure, and examine factors associated with a positive fine needle aspiration biopsy result. Although the utility of ultrasound-guided fine needle aspiration biopsy (FNA) of axillary lymph nodes is well established, there is little data on nonimage guided office-based FNA of palpable axillary lymphadenopathy. We investigated the sensitivity and specificity of nonimage-guided FNA of axillary lymphadenopathy in patients presenting with breast cancer, and report factors associated with a positive FNA result. Retrospective study of 94 patients who underwent office-based FNA of palpable axillary lymph nodes between 2004 and 2008 was conducted. Cytology results were compared with pathology after axillary sentinel node or lymph node dissection. Nonimage-guided axillary FNA was 86% sensitive and 100% specific. On univariate analysis, patients with positive FNA cytology had larger breast tumors (p = 0.007), more pathologic positive lymph nodes (p < 0.0001), and were more likely to present with a palpable breast mass (p = 0.006) or with radiographic lymphadenopathy (p = 0.002). FNA-positive patients had an increased presence of lymphovascular invasion (p = 0.001), higher stage of disease (p < 0.001), higher N stage (p < 0.0001), and higher rate of HER2/neu expression (p = 0.008). On multivariate analysis, radiographic lymphadenopathy (p = 0.03) and number of positive lymph nodes (p = 0.04) were associated with a positive FNA result. Nonimage-guided FNA of palpable axillary lymphadenopathy in breast cancer patients is an inexpensive, sensitive, and specific test. Prompt determination of lymph node positivity benefits select patients, permitting avoidance of axillary ultrasound, sentinel lymph node biopsy, or delay in receiving neoadjuvant therapy. This results in time and cost savings for the health care system, and expedites definitive management.     

Lower lymph node yield in axillary lymph node dissection specimens in breast cancer patients receiving neoadjuvant chemotherapy: Quality concern or treatment effect?

Axillary lymph node dissection (ALND) specimens should have at least ten-lymph nodes for examination according to established guidelines. Nonetheless, recent evidence suggests that neoadjuvant chemotherapy (NAC) results in fewer nodes in the specimen. We sought to examine if NAC patients have lower lymph node yield from ALND specimens and whether the number of lymph nodes in the specimen is correlated with pathologic complete response (pCR). Using the National Cancer Database (NCDB), a study cohort of female patients with node-positive, non-metastatic invasive breast cancer diagnosed from 2012 to 2015 was identified. The axillary lymph node retrieval count was compared in NAC and non-NAC patients and then correlated with pCR. A multivariable analysis was performed to identify factors that were associated with less than ten-lymph nodes in the ALND pathologic specimen. Of 56,976 patients identified, 27,197 (48%) received neoadjuvant chemotherapy; 29,779 (52%) did not. NAC patients failed to meet the ten-lymph node minimum in the ALND specimen more often than non-NAC patients (35% vs. 27%, p < 0.001). NAC patients with fewer than ten-lymph nodes were more likely to have a pCR than those with ten or more (22% vs. 16%, p < 0.001). On multivariable analysis, pCR of the primary tumor and receptor status were found to be independent predictors of having fewer than ten-lymph nodes in the ALND specimen. Node-positive breast cancer patients that underwent NAC were more likely to not meet the ten-lymph node standard. However, NAC patients who did not meet the minimum were also more likely to have a pCR compared to NAC patients who did. This suggests lower lymph node yield may not truly be a marker of lower quality surgery but rather a potential marker of NAC treatment effect.     

Sentinel lymph node mapping following neoadjuvant chemotherapy for breast cancer

The purpose of this study was to evaluate the feasibility of sentinel lymph node mapping in patients undergoing neoadjuvant chemotherapy for breast carcinoma prior to lumpectomy or mastectomy and sentinel lymph node mapping followed by complete axillary dissection. A retrospective analysis of 14 patients from February 1998 to July 2000 with stage I to stage IIIB breast cancer diagnosed by core biopsy underwent neoadjuvant chemotherapy (doxorubicin/cyclophosphamide) prior to definitive surgery, including lumpectomy or mastectomy and sentinel lymph node mapping, followed by full axillary dissection. Thirteen of 14 patients had successful sentinel lymph node identification (93%), and all 14 underwent full axillary dissection. An average of 2.2 sentinel nodes and a median of 16 axillary lymph nodes (including sentinel nodes) were found per patient. Of the 13 patients in whom a sentinel lymph node was identified, 10 were positive for metastases (77%). Only 4 of the 10 had further axillary metastases (40%). Three patients had negative sentinel lymph nodes shown by hematoxylin and eosin and cytokeratin stainings and had no axillary metastases (0% false negative). The single patient in whom a sentinel lymph node could not be identified had stage IIIA disease with extensive lymphatic tumor emboli. Sentinel lymph node mapping is feasible in neoadjuvant chemotherapy breast cancer patients and can spare a significant number of patients the morbidity of full axillary dissection. Further study to evaluate sentinel lymph node mapping in this patient population is warranted.     

The predictive value of sentinel lymph node biopsy in locally advanced breast cancer patients who have undergone neoadjuvant chemotherapy

With the increasing usage of neoadjuvant chemotherapy (NAC) in locally advanced breast cancer (LABC), there is the need to investigate the routine axillary node dissections performed in this group of patients. Controversy exists about the utility of sentinel node biopsy (SNB), either before or after NAC. With the addition of trastuzumab in the treatment of Her2/neu-positive LABC patients, the validity of SNB in this subset population needs to be investigated. A retrospective study of 20 patients who underwent NAC for LABC was undertaken. The pathology of the axillary nodes, sentinel nodes, and primary tumor after neoadjuvant chemotherapy were examined. Twenty patients underwent NAC with doxorubicin and cyclophosphamide, followed sequentially by paclitaxel and carboplatin, with or without trastuzumab based on Her2/neu status. Post chemotherapy, 20 patients underwent mastectomy or lumpectomy with SNB with axillary node dissections. The overall accuracy of SNB was 95 per cent with a false-negative rate of 14 per cent (1/7). In Her2/neu-positive patients, overall accuracy was 100 per cent (8/8) and a false-negative rate of zero per cent. Sentinel node biopsy is a viable option in patients who have undergone NAC. Her2/neu-positive patients who had undergone NAC with trastuzumab had comparable accuracy for sentinel node biopsy in predicting axillary node status.     

Sentinel lymph node biopsy after neoadjuvant chemotherapy in a patient with operable breast cancer

PURPOSE: This study was undertaken to assess the feasibility of performing a sentinel lymph node biopsy (SLNB) for a patient with operable breast cancer after undergoing neoadjuvant chemotherapy (NAC). METHOD: Between January 2002 and December 2003, women with primary breast cancer who had a breast tumor measuring larger than 3 cm in unilateral diameter were eligible for NAC. All patients who had completed NAC underwent lymphatic mapping with labeled (99m)Tc phytate on the day before surgery. Sentinel lymph node biopsy followed by a full axillary lymph node (AXLN) dissection (ALND) was performed in all patients. Sentinel lymph nodes (SLN) were sent for a frozen-section examination. RESULTS: The rate of SLN identification was 71%. Both the sensitivity and negative predictive value of SLNB were 100%. The false negative rate was 0%. When candidates for SLNB were restricted to patients with a breast tumor measuring less than 3 cm and clinically negative nodes after NAC, the rate of SLN identification increased to 93% from 71% while still maintaining the 0% false negative rate. CONCLUSION: Sentinel lymph node biopsy after NAC is therefore considered to be a feasible and accurate method to predict the AXLN status in patients who have a breast tumor measuring less than 3 cm in unilateral diameter and a clinically negative AXLN status at the time of surgery after NAC.     

乳腺癌前哨淋巴结活检对腋窝淋巴结转移的预警价值研究

目的探讨乳腺癌前哨淋巴结(sentinel lymph node,SLN)预警腋窝淋巴结转移的价值. 方法对56例乳腺癌行亚甲蓝前哨淋巴结定位、活检和腋窝淋巴结清扫术,标本常规行HE染色、免疫组化病理检查. 结果 SLN成功检出52例(52/56,92.8%),常规病理检查证实SLN转移22例;SLN无转移,但非SLN发现转移者1例,假阴性率为4.3%(1/23).常规病理检查无转移的29例患者,免疫组化检测发现1例CK-19( )、EMA( ),另1例CK-19( ),CEA( ),而所属非前哨淋巴结无肿瘤转移. 结论乳腺癌亚甲蓝前哨淋巴结定位、活检可以预示腋窝淋巴结转移.     

不同分子亚型乳腺癌与腋窝淋巴结转移的相关性分析

目的探讨乳腺癌不同分子亚型与腋窝淋巴结转移的关系。方法对127例乳腺癌患者进行分子分型,并对其腋窝淋巴结转移状态进行分析。结果 127例中Luminal A型50例,8例淋巴结转移,转移率为16.0%;Luminal B1型28例,16例淋巴结转移,转移率为57.1%;Luminal B2型15例,3例淋巴结转移,转移率为20.0%;HER-2过表达型25例,7例淋巴结转移,转移率为28.0%;Basal-like型9例,6例淋巴结转移,转移率为66.7%。结果显示,不同分子分型乳腺癌的腋窝淋巴结转移阳性率差异显著。结论根据乳腺癌的分子分型可以间接了解患者腋窝淋巴结的转移情况,或对腋窝淋巴结清扫术指征的制定提供帮助。     

新辅助化疗对乳腺癌腋淋巴结及结外侵犯的影响

目的 旨在观察局部进展期乳腺癌新辅助化疗时腋淋巴结及结外侵犯的临床病理学改变.方法 2002年6月-2009年8月南京大学附属第二医院收治的肿块大于5 cm伴同侧腋淋巴结肿大但不融合的86例患者,以患者是否愿意行新辅助化疗分组,A组患者46例,不愿行新辅助化疗,穿刺确诊后行手术治疗,术后病理证实,腋淋巴结转移40例,转移腋淋巴结结外侵犯17例.B组患者40例,自愿行新辅助化疗,穿刺确诊后平均行3个周期新辅助化疗,再行手术治疗,术后病理证实,腋淋巴结转移26例,转移腋淋巴结结外侵犯6例.结果 A组患者淋巴结转移率为86.9%,转移淋巴结并结外侵犯率为36.9%;B组患者淋巴结转移率为65%,转移淋巴结结外侵犯率为15%,两组病例在淋巴结转移率及转移淋巴结结外侵犯率之间存在显著差异,P<0.05.结论 新辅助化疗对于患者的腋淋巴结转移灶有明显作用,减少了淋巴结转移率及转移淋巴结结外侵犯率.