目的:探讨高迁移率族蛋白B1(high mobility group box 1,HMGB1)及程序性细胞死亡配体1(programmed cell death ligand 1,PD-L1)在浸润性乳腺癌非特殊型中的表达情况及其与预后的关系。方法:收集257例女性浸润性乳腺癌非特殊型患者的病...目的:探讨高迁移率族蛋白B1(high mobility group box 1,HMGB1)及程序性细胞死亡配体1(programmed cell death ligand 1,PD-L1)在浸润性乳腺癌非特殊型中的表达情况及其与预后的关系。方法:收集257例女性浸润性乳腺癌非特殊型患者的病理及临床资料,采用免疫组织化学法检测浸润性乳腺癌非特殊型及同一患者正常乳腺组织HMGB1和PD-L1的表达情况,分析二者与临床病理参数的关系,并评价其预后价值。结果:HMGB1高表达与肿瘤体积大小、组织学分级、腋窝淋巴结转移、TNM分期以及雌激素受体有关(P<0.05)。PD-L1阳性表达与组织学分级、腋窝淋巴结转移、TNM分期、雌激素受体、孕激素受体、HER2以及分子分型有关(P<0.05)。在预后方面,HMGB1高表达和PD-L1阳性显著影响浸润性乳腺癌非特殊型患者的5年无复发生存率(P<0.05)。结论:HMGB1高表达和PD-L1阳性与浸润性乳腺癌非特殊型患者多项预后不良因素密切相关。HMGB1高表达和PD-L1阳性对浸润性乳腺癌非特殊型患者的术后复发预测具有一定的参考价值。展开更多
AIM:To study the indications for sentinel lymph node biopsy(SLNB) in clinically-detected ductal carcinoma in situ(CD-DCIS).METHODS:A retrospective analysis of 20 patients with an initial diagnosis of pure DCIS by an i...AIM:To study the indications for sentinel lymph node biopsy(SLNB) in clinically-detected ductal carcinoma in situ(CD-DCIS).METHODS:A retrospective analysis of 20 patients with an initial diagnosis of pure DCIS by an image-guided core needle biopsy(CNB) between June 2006 and June 2012 was conducted at King Faisal Specialist Hospital.The accuracy of performing SLNB in CD-DCIS,the rate of sentinel and non-sentinel nodal metastasis,and the histologic underestimation rate of invasive cancer at initial diagnosis were analyzed.The inclusion criteria were a preoperative diagnosis of pure DCIS with no evidence of invasion.We excluded any patient with evidence of microinvasion or invasion.There were two cases of mammographically detected DCIS and 18 cases of CDDCIS.All our patients were diagnosed by an imageguided CNB except two patients who were diagnosed by fine needle aspiration(FNA).All patients underwent breast surgery,SLNB,and axillary lymph node dissection(ALND) if the SLN was positive.RESULTS:Twenty patients with an initial diagnosis of pure DCIS underwent SLNB,2 of whom had an ALND.The mean age of the patients was 49.7 years(range,35-70).Twelve patients(60%) were premenopausal and 8(40%) were postmenopausal.CNB was the diagnostic procedure for 18 patients,and 2 who were diagnosed by FNA were excluded from the calculation of the underestimation rate.Two out of 20 had a positive SLNB and underwent an ALND and neither had additional non sentinel lymph node metastasis.Both the sentinel visualization rate and the intraoperative sentinel identification rate were 100%.The false negative rate was 0%.Only 2 patients had a positive SLNB(10%) and neither had additional metastasis following an ALND.After definitive surgery,3 patients were upstaged to invasive ductal carcinoma(3/18 = 16.6%) and 3 other patients were upstaged to DCIS with microinvasion(3/18 = 16.6%).Therefore the histologic underestimation rate of invasive disease was 33%.CONCLUSION:SLNB in CD-DCIS is technically feasible and highly accurate.We recommend limiting SLNB to patients undergoing a mastectomy.展开更多
Objective To investigate the hypermethylation status of glutathione transferase P1(GSTP1)and E-cadherin(ECAD),TSGs(tumor suppressor genes)in our breast cancer samples and explore their correlation with clinicopatholog...Objective To investigate the hypermethylation status of glutathione transferase P1(GSTP1)and E-cadherin(ECAD),TSGs(tumor suppressor genes)in our breast cancer samples and explore their correlation with clinicopathological features of corresponding cancer patients.Methods One hundred and thirty-six IDC(invasive ductal carcinoma)patients were recruited for analysis and 16 fibroadenoma patients acted as control.DNA extraction and methylation-specific PCR(MSP)were subsequently performed preceded by pathological examination.Results The percentage of hypermethylated GSTP1 in carcinoma and fibroadenoma groups was 34.92% and 15.79% respectively and the percentage of hypermethylated ECAD in carcinomas and fibroadenomas was 18.00% and 0.00% respectively.Carcinoma had the highest percentage of c-erbB2 overexpression being 54.55% among the clinicopathological parameters.Conclusion Hypermethylation patterns are frequent in IDC and seem to relate to c-erbB2 overexpression,and such epigenetic change should not be neglected in fibroadenoma.Tumor methylation status in cancer patients can be determined at early stage and it may be a reference for better treatment planning.展开更多
目的观察乳腺三阴性非特殊型浸润性癌(triple-negative breast invasive cancinoma of no specific type,TNBIC-NST)与伴有髓样特征乳腺癌(medullary breast carcinoma,MBC)在临床病理和超声中的特征。方法回顾性分析54例乳腺TNBIC-NST...目的观察乳腺三阴性非特殊型浸润性癌(triple-negative breast invasive cancinoma of no specific type,TNBIC-NST)与伴有髓样特征乳腺癌(medullary breast carcinoma,MBC)在临床病理和超声中的特征。方法回顾性分析54例乳腺TNBIC-NST与29例MBC的临床病理特点,超声表现(肿块大小、与皮肤关系、边界、钙化、液性回声等),癌组织中CK5/6、EGFR、AR、TOPOⅡ、GST、P170和Ki67免疫组化表达特点。结果乳腺TNBICNST与MBC临床病理特征基本相同,除MBC的核分裂数(>10个/10HPF)比例(75.86%)高于TNBIC-NST外(42.59%)(P<0.05),在年龄、癌灶位置、大小、癌细胞核级、有无淋巴结转移及临床分期方面两组间差异无统计学意义(P>0.05)。超声检查结果示,与乳腺TNBIC-NST比较,乳腺MBC的癌灶方向与皮肤平行、边缘更加光整、边界也更清晰、未发现周围腺体结构扭曲(P<0.05)。免疫组化检测显示,CK5/6、EGFR、AR、GST、P170、TOPOⅡ和Ki67的表达阳性率在乳腺TNBIC-NST和MBC的癌细胞中差异均无统计学意义(P均>0.05)。结论乳腺MBC可能比乳腺TNBIC-NST生长速度更快;超声检查对于两者的鉴别诊断具有参考意义。展开更多
文摘目的:探讨高迁移率族蛋白B1(high mobility group box 1,HMGB1)及程序性细胞死亡配体1(programmed cell death ligand 1,PD-L1)在浸润性乳腺癌非特殊型中的表达情况及其与预后的关系。方法:收集257例女性浸润性乳腺癌非特殊型患者的病理及临床资料,采用免疫组织化学法检测浸润性乳腺癌非特殊型及同一患者正常乳腺组织HMGB1和PD-L1的表达情况,分析二者与临床病理参数的关系,并评价其预后价值。结果:HMGB1高表达与肿瘤体积大小、组织学分级、腋窝淋巴结转移、TNM分期以及雌激素受体有关(P<0.05)。PD-L1阳性表达与组织学分级、腋窝淋巴结转移、TNM分期、雌激素受体、孕激素受体、HER2以及分子分型有关(P<0.05)。在预后方面,HMGB1高表达和PD-L1阳性显著影响浸润性乳腺癌非特殊型患者的5年无复发生存率(P<0.05)。结论:HMGB1高表达和PD-L1阳性与浸润性乳腺癌非特殊型患者多项预后不良因素密切相关。HMGB1高表达和PD-L1阳性对浸润性乳腺癌非特殊型患者的术后复发预测具有一定的参考价值。
文摘AIM:To study the indications for sentinel lymph node biopsy(SLNB) in clinically-detected ductal carcinoma in situ(CD-DCIS).METHODS:A retrospective analysis of 20 patients with an initial diagnosis of pure DCIS by an image-guided core needle biopsy(CNB) between June 2006 and June 2012 was conducted at King Faisal Specialist Hospital.The accuracy of performing SLNB in CD-DCIS,the rate of sentinel and non-sentinel nodal metastasis,and the histologic underestimation rate of invasive cancer at initial diagnosis were analyzed.The inclusion criteria were a preoperative diagnosis of pure DCIS with no evidence of invasion.We excluded any patient with evidence of microinvasion or invasion.There were two cases of mammographically detected DCIS and 18 cases of CDDCIS.All our patients were diagnosed by an imageguided CNB except two patients who were diagnosed by fine needle aspiration(FNA).All patients underwent breast surgery,SLNB,and axillary lymph node dissection(ALND) if the SLN was positive.RESULTS:Twenty patients with an initial diagnosis of pure DCIS underwent SLNB,2 of whom had an ALND.The mean age of the patients was 49.7 years(range,35-70).Twelve patients(60%) were premenopausal and 8(40%) were postmenopausal.CNB was the diagnostic procedure for 18 patients,and 2 who were diagnosed by FNA were excluded from the calculation of the underestimation rate.Two out of 20 had a positive SLNB and underwent an ALND and neither had additional non sentinel lymph node metastasis.Both the sentinel visualization rate and the intraoperative sentinel identification rate were 100%.The false negative rate was 0%.Only 2 patients had a positive SLNB(10%) and neither had additional metastasis following an ALND.After definitive surgery,3 patients were upstaged to invasive ductal carcinoma(3/18 = 16.6%) and 3 other patients were upstaged to DCIS with microinvasion(3/18 = 16.6%).Therefore the histologic underestimation rate of invasive disease was 33%.CONCLUSION:SLNB in CD-DCIS is technically feasible and highly accurate.We recommend limiting SLNB to patients undergoing a mastectomy.
文摘Objective To investigate the hypermethylation status of glutathione transferase P1(GSTP1)and E-cadherin(ECAD),TSGs(tumor suppressor genes)in our breast cancer samples and explore their correlation with clinicopathological features of corresponding cancer patients.Methods One hundred and thirty-six IDC(invasive ductal carcinoma)patients were recruited for analysis and 16 fibroadenoma patients acted as control.DNA extraction and methylation-specific PCR(MSP)were subsequently performed preceded by pathological examination.Results The percentage of hypermethylated GSTP1 in carcinoma and fibroadenoma groups was 34.92% and 15.79% respectively and the percentage of hypermethylated ECAD in carcinomas and fibroadenomas was 18.00% and 0.00% respectively.Carcinoma had the highest percentage of c-erbB2 overexpression being 54.55% among the clinicopathological parameters.Conclusion Hypermethylation patterns are frequent in IDC and seem to relate to c-erbB2 overexpression,and such epigenetic change should not be neglected in fibroadenoma.Tumor methylation status in cancer patients can be determined at early stage and it may be a reference for better treatment planning.
文摘目的观察乳腺三阴性非特殊型浸润性癌(triple-negative breast invasive cancinoma of no specific type,TNBIC-NST)与伴有髓样特征乳腺癌(medullary breast carcinoma,MBC)在临床病理和超声中的特征。方法回顾性分析54例乳腺TNBIC-NST与29例MBC的临床病理特点,超声表现(肿块大小、与皮肤关系、边界、钙化、液性回声等),癌组织中CK5/6、EGFR、AR、TOPOⅡ、GST、P170和Ki67免疫组化表达特点。结果乳腺TNBICNST与MBC临床病理特征基本相同,除MBC的核分裂数(>10个/10HPF)比例(75.86%)高于TNBIC-NST外(42.59%)(P<0.05),在年龄、癌灶位置、大小、癌细胞核级、有无淋巴结转移及临床分期方面两组间差异无统计学意义(P>0.05)。超声检查结果示,与乳腺TNBIC-NST比较,乳腺MBC的癌灶方向与皮肤平行、边缘更加光整、边界也更清晰、未发现周围腺体结构扭曲(P<0.05)。免疫组化检测显示,CK5/6、EGFR、AR、GST、P170、TOPOⅡ和Ki67的表达阳性率在乳腺TNBIC-NST和MBC的癌细胞中差异均无统计学意义(P均>0.05)。结论乳腺MBC可能比乳腺TNBIC-NST生长速度更快;超声检查对于两者的鉴别诊断具有参考意义。
