Proximal gastric cancer: lymph node metastatic patterns according to different T stages dictate surgical approach

Background As a common form of gastric cancer migration,lymph node metastasis largely affects the surgical treatment and prognosis of gastric cancer.Surgery is the fundamental curative option for gastric cancer that varies depending on different stages.The study aimed to compare the clinicopathological characteristics and lymph node metastatic patterns in patients of proximal gastric cancer with different T stages and investigate a reasonable radical gastrectomy approach in terms of the range of lymphadenectomy for proximal gastric cancer.Methods In our retrospective study,the data of 328 patients of proximal gastric cancer with different T stages were analyzed.By comparing the differences of lymph node metastatic rate and ratio,we investigated the clinicopathological characteristics and metastatic patterns of lymph nodes.Also,we were especially interested in the differences in survival rates between patients with and without No.5 and 6 group metastasis with the same TNM stage.Results The overall lymph node metastatic rate and ratio of advanced proximal gastric cancer were 73.4％ and 23.3％,respectively.The tumors of different T stages were statistically significant in size and differentiation degree （P ＜0.05）,multivariate analysis showed that the depth of tumor invasion was an independent risk factor for lymph node metastasis in proximal gastric cancer （RR,12.025; 95％ CI,2.326 to 62.157; P=0.003）.The overall survival rate of patients with No.5,6 group lymph node metastasis and those without was significantly different,but the differences in survival rates between patients with and without No.5 and 6 group metastasis with the same TNM stage were not statistically significant.Conclusions Different T stages in proximal gastric cancer showed different patterns and characteristics of lymph node metastasis.D2 lymphadenectomy in patients with early gastric cancer had little survival benefit because metastasis to level 2 nodes was rare.Therefore the range of the lymph node dissection in radical gastrectomy     

Prognostic significance of metastatic lymph nodes ratio in patients with gastric adenocarcinoma after curative gastrectomy

Background We evaluated the impact of the number of metastatic lymph nodes and the metastatic lymph nodes ratio （the ratio between metastatic lymph nodes and total dissected lymph nodes,MLNR） in patients with gastric adenocaminoma following curative gastrectomy and also analyzed the relationship between the number of removed lymph nodes and prognosis in node-negative gastric cancer.Methods From January 2005 to December 2010,1 390 patients who were diagnosed with gastric adenocarcinoma and underwent curative gastrectomy were included.In particular,lymph node metastasis was not present in 515 patients.The number of metastatic lymph nodes and the metastatic lymph nodes ratio were selected for univariate and multivariate analyses to evaluate their influences on the disease outcome.The survival curve was presented according to the number of removed lymph nodes in node-negative gastric cancer using Kaplan-Meier plots.Results The overall 5-year survival rate was 54％ in this group.Univariate analysis revealed that age category,macroscopic appearance,histological grade,tumor size,depth of primary tumor invasion,number of metastatic lymph nodes,metastatic lymph nodes ratio,tumor,nodes,metastasis-classification （TNM） stage and status of lymphovascular,and vessel invasion have significant impact on survival.The number of metastatic lymph nodes and the metastatic lymph nodes ratio both have significant impact on survival （P ＜0.001）.However,in multivariate analyses,only the metastatic lymph nodes ratio was identified to be an independent prognostic factor （P ＜0.001）.The number of removed lymph nodes in node-negative was a strong prognostic factor of survival,the more lymph nodes dissected,the better the survival.Conclusions The metastatic lymph nodes ratio has more significant prognostic value for survival in patients with gastric cancer following curative gastrectomy than the number of metastatic lymph nodes.The number of removed lymph nodes miaht be an important proanostic factor for gastric cancer without lymph node metastasis.     

Role of RANTES and its receptor in gastric cancer metastasis

This study examined the role of regulated upon activation normal T cell expressed and secreted(RANTES) and its receptor C-C chemokine receptor type 5(CCR5) in gastric cancer metastasis and the associated mechanism.The expression of RANTES and CCR5 was detected by using immunohistochemical staining and Western blotting in the gastric cancer tissues obtained from 60 gastric cancer patients with or without lymph node metastasis(n=30 in each).The results showed that the expression levels of RANTES and CCR5 were higher in gastric cancer with lymph node metastasis than in that without metastasis(P<0.05).The expression levels of RANTES in 30 lymph nodes with cancerous invasion were higher than in 30 normal lymph nodes(P<0.05).Chemotactic test revealed that the number of migrating gastric cancer cells(n=295.0±54.6) induced by the protein of cancer-invading lymph nodes was greater than that by the protein mixture from cancer-invading lymph nodes and RANTES antibody(n=42.5±11.6)(P<0.05).RT-PCR showed that the expression levels of the main Th1 cytokines(IL-2,γ-IFN) were lower in gastric cancer with lymph node metastasis(2.22±0.90,3.26±1.15 respectively) than in that without metastasis(3.07±1.67,4.77±1.52 respectively)(P<0.05),but the expression level of the main Th 2 cytokine(IL-10) was higher in gastric cancer with lymph nodes metastasis(6.06±2.04) than in that without metastasis(4.88±1.87)(P<0.05).It was concluded that RANTES and its receptor CCR5 may contribute to gastric cancer metastasis through influencing the balance of Th1/Th2.RANTES and CCR5 may become a marker of gastric cancer metastasis.     

Expression and role of AQP1 in cervical squamous carcinoma and its precancerous lesions

Objective： To investigate the expression of aquaporin 1 in cervical squamous carcinomas （CSC） and cervical precancerous lesions, and the relationship between the tumor clinicopathological parameters, prognosis and the expression of AQP1. Methods： Immunohistochemical method （EliVision） was used to detect the expression of AQP1 in samples from 106 patients [20 with normal cervical tissue, 30 with cervical intraepithelial neoplasia （stage Ⅰ and Ⅱ） and 56 with CSC]. Survival analysis was performed by Kaplan-Meier method. Results： AQP1 protein was expressed in vascular endothelia of all samples. It showed upregulation of AQP1 expression in CSC. There was a significant difference between CSC and normal cervical tissues （P〈0.05）. AQP1 was expressed in some tumor cells and unexpressed in normal squamous epithelial cells. And APQl-expressing tumor cells were positively related to lymph node metastasis. Patients with APQl-expressing tumor cells had the lower survival rate than the ones without. Conclusion： Abnormal expression of AQP1 plays an important role in the development of CSC. Positive expression of AQP1 in tumor cells maybe enhances tumor metastasis and could be used as a marker for tumor prognosis.     

Role of silencing phosphatase of regenerationg liver-3 expression by microRNA interference in the growth of gastric cancer

Background Accumulated evidences demonstrate that phosphatase of regeneration liver-3 （PRL-3） is associated with metastasis of multiple tumor types, and has been validated as a potential therapeutic target for metastasis. High expression of PRL-3 was implicated in lymph node metastasis of gastric cancer. In the present study, we investigated the role of silencing PRL-3 expression by microRNA （miRNA） interference in gastric cancer growth. Methods RNA interference, mediated by recombinant lentivirus expressing artificial PRL-3 miRNA, was employed to knockdown PRL-3 expression in human SGC7901 gastric cancer cells. MTT assay and tumor implantation experiment were conducted to determine the role of PRL-3 in the proliferation of SGC7901 cells and tumor growth. Results Transfection of recombinant lentivirus expressing artificial PRL-3 miRNA significantly suppressed the proliferation of SGC7901 cells in vitro. The implanted tumor size of the PRL-3 transfection group was （1.92±0.18） cm^3, significantly smaller compared with controls （P 〈0.001）. Conclusions Knockdown of PRL-3 significantly suppressed the proliferation of SGC7901 cells in vitro and tumor growth in vivo. PRL-3 plays a key role in the growth of gastric cancer. PRL-3 should be considered as a potential therapeutic target.     

Clinical significance of B7-H3 expression on CD3 T cells in colorectal cancer

Background To investigate the expression of negative costimulatory molecule B7-H3 on CD3 T lymphocytes in colorectal cancer, and its relationship with clinic-pathological variables and patients’ prognosis. Methods The expression of B7-H3 was detected in 98 patients of colorectal cancer by using immunohistochemistry. Then the expression of B7-H3 was further conformed by flow cytometry on CD3 T lymphocytes isolated from the fresh cancer tissues of 12 colorectal cancer patients. Then analyzed the relationship between the expression of B7-H3 on CD3 T lymphocytes and patients’ clinic-pathological variables. Results The survival time of patients with more CD3 T cell infiltration are longer than those with less CD3 T cell infiltration(P<0.05), B7-H3 was highly expressed on the infiltrating CD3 T lymphocytes in colorectal cancer tissues. The expression of B7-H3 was found to be significantly related with the lymph node metastasis(P<0.05), but not with the patient's gender, age, tumor size, differentiation degree, depth of tumor invasion, Dukes' stage, distant metastasis and whether or not mucinous adenocarcinoma(P>0.05). Moreover, the survival time of patients with low expression of B7-H3 is longer than those of high B7-H3 expression patients, but the patients’ seven-year survival rate has no statistical difference between the high expression of B7-H3 and low expression of B7-H3(P>0.05). Conclusions The negative costimulatory molecule B7-H3 expresses on infiltrating CD3 T lymphocytes in colorectal cancer and plays an important role in lymph node metastasis and prognosis.     

Expression of vascular cell adhesion molecule-1 facilitates angiogenesis in gastric carcinoma

Objective： To investigate the relationship between the expression of VCAM-1 and oncogenesis, tumor angiogenesis and metastasis in gastric carcinoma. Methods： Using RT-PCR and immunohistocbemistry technique, the expression of VCAM-1 were detected in specimens from 44 patients with gastric cancer, 8 with ulcer. Microvessel density （MVD） was also counted by endothelial cells immunostained with monoclonal antibodies CD34. In addition, Circulating sVCAM-1 concentrations were measured by an enzyme linked immunosorbent assay. Results ： Of 44 gastric cancer tumor tissues, 36 were detected the ex pressions of VCAM-1 mRNA. The rates of VCAM-1 mRNA in the primary gastric cancer tissues were significantly higher than those in the para-cancerous tissues and benign ulcer tissues （P 〈 0.05）. The VCAM-1 posithoseive isolates had more lymph node metastases than that of VCAM-l-negative ones （P 〈 0.05）： MVD of positive VCAM-1 expression tissues were higher than those of negative VCAM-1 （P 〈 0.05）. Circulating sVCAM-1 levels decreased significantly after operation （P 〈 0.05）. Furthermore, the levels of sVCAM-1 were positively correlated with the expressions of VCAM-1 in the tumor tissues （r = 0.64, P 〈 0.05 ）. Conclusion： Expressions of VCAM-1 mRNA was closely related to oncogenesis, tumor angiogenesis and metastasis in gastric carcinoma. The concentration of sVCAM-1 may be considerexl as an effective mark of tumor burden of gastric cancer.     

Prognostic factors for patients after curative resection for proximal gastric cancer

The factors influencing the long-term survival of patients with proximal gastric cancer (PGC) after curative resection were investigated. Data from 171 patients who underwent curative resection for PGC were retrospectively analyzed. The patients were grouped according to the clinicopathological factors and operative procedures. The tumor depth (T stage) and lymph node metastasis (pN stage) were graded according to the fifth edition of TNM Staging System published by UICC in 1997. The metastatic lymph node r...     

Prognostic significance of MDR-1 P-glycoprotein expression in breast cancer

Objective: To investigate the expression of MDR-1 P-glycoprotein(MDR-1 Pgp) in breast cancer and analyze its correlation to the biological behavior and prognosis of the disease. Methods:The expression of MDR-1 Pgp was examined in 75 cases of breast cancer patients by using three different monoclonal antibodies(JSB1, C219 and C494) with S-P immunohistochemisty. These patients were followed up for 5 years, and the correlation between MDR-1 Pgp expression, survival rate and lymph metastasis was analyzed. Results: Positive detection of MDR-1 Pgp by JSB1, C219 and C494 in 75 cases of breast cancer was 86.7%, 48% and 85.3%, respectively. MDR-1 Pgp expression was not related to ages of patients (P > 0.05). JSB1-detected expression of MDR-1 Pgp was related to lymph node metastasis(P < 0.05); while C219 and C494 were not(P > 0.05). The patients with MDR-1 Pgp expression positively detected by either two of the three antibodies, had five-year survival rate that was significantly higher than those positively detected by all the three antibodies(P < 0.05). Conclusion:Three antibodies should be used simultaneously to detect MDR-1 Pgp expression in breast cancer. Positive MDR-1 Pgp expression in breast cancer detected by all the three antibodies may represent a poor prognosis; while positive MDR-1 Pgp detection by JSB1 and C494 is associated with lymph metastasis.     

Multi-slice CT contrast-enhanced presentations of advanced gastric cancer: associations with histo-differentiation and expression of p53 and P-glycoprotein

Background This study aimed to investigate multi-slice CT contrast-enhanced presentation of gastric cancer and its correlation with histo-differentiation and p53 and P-glycoprotein （P-gp） expression. Methods Sixty-six patients with gastric cancer in the present study underwent a multi-slice CT preoperative routine and dual-phase contrast-enhanced examination of the upper abdomen; postoperative specimens were used to determine histo-differentiation and the expression of p53 and P-gp. The correlation of multi-slice CT contrast-enhanced presentation with histo-differentiation and expression of p53 and P-gp was analyzed. Results The dual-phase contrast-enhanced ratio （CER） was not correlated with the histo-differentiation of gastric cancer （P 〉0.05）. Positive expression of p53 and P-gp was significantly higher in the cases of layered or heterogeneous enhancement than in the cases of homogenous enhancement （P 〈0.05）. Positive expression of p53 was also correlated with the arterial phase CER, tumor size and lymph node metastasis （P 〈0.05）, but not with infiltration thickness of the gastric wall, nor was it correlated with the portal phase CER （P 〉0.05）. Positive expression of P-gp was only correlated with the portal phase CER （P=0.005）. Conclusions Differently enhanced pattern and CER of the arterial and portal phase in gastric cancer correlate with its different histo-differentiation and expression of p53 and P-gp respectively. In addition, tumor size and lymph node metastasis of gastric cancer relate to the expression of p53.     

NF-κB在胃癌及其淋巴结组织中表达的临床意义

目的：探讨细胞核转录因子（NF-κB）在胃癌、癌旁及其淋巴结组织中表达的临床意义,分析NF-κB的表达水平与临床病理特征和生存期以及原发灶和转移灶之间的关系。方法：用组织芯片和免疫组化的方法检测189例胃癌组织、54例癌旁组织、41例淋巴结转移灶、32例正常胃黏膜中NF-κB的表达。结果：胃癌、癌旁和正常胃黏膜NF-κB阳性表达率分别是75％,43％和16％。3组之间阳性表达率的差异具有显著性（P〈0.05）。NF-κB阳性表达与有无淋巴结转移、浸润深度、分化程度、Lauren分型有关（P〈0.05）。41例淋巴结转移灶和相对应的41例胃癌组织NF-κB阳性表达率差异具有显著性（P〈0.05）,转移灶中NF-κB高表达。单因素生存分析显示NF-κB阳性表达对胃癌患者生存期的影响有统计学意义（P〈0.05）,Cox多元回归分析显示NF-κB的异常表达可作为影响胃癌预后的独立因素（P〈0.05）。结论：NF-κB高表达参与胃癌的发生发展、浸润转移,是胃癌发生的早期事件,转移灶癌组织和原发灶相比有异质性。NF-κB的表达可以作为胃癌预后的独立指标。     

MicroRNA-122-5p、microRNA-33a-3p在胃癌患者中的表达及与临床病理特征和预后的关系

目的 探究胃癌患者血清microRNA-122-5p（miR-122-5p）、microRNA-133a-3p（miR-133a-3p）mRNA相对表达量与临床病理特征及预后的关系。方法 采集胃癌患者血清标本94例,以相同例数的健康体检者的血清样本作为对照。采用实时荧光定量聚合酶链反应（qRT-qPCR）技术检测血清miR-122-5p、miR-133a-3p mRNA相对表达量,同时分析两者与胃癌患者临床病理特征的关系;绘制Kaplan-Meier生存曲线,分析miR-122-5p、miR-133a-3p的表达与胃癌患者预后的关系。结果 胃癌患者血清miR-122-5p、miR-133a-3p mRNA相对表达量低于健康体检者（P <0.05）;有淋巴结转移、分化程度低、浸润至浆膜层的患者血清miR-122-5p mRNA相对表达量低于无淋巴结转移,中、高分化程度、浸润至黏膜下各层的患者（P <0.05）;有淋巴结转移、低分化程度、浸润至浆膜层、TNM分期为Ⅲ+Ⅳ期的患者血清miR-133a-3p mRNA相对表达量低于无淋巴结转移,中、高分化程度,浸润至黏膜下各层,TNM分期为Ⅰ+Ⅱ期的患者（P <0.05）;Kaplan-Meier生存曲线结果显示,miR-122-5p低表达胃癌患者5年生存率低于miR-122-5p高表达胃癌患者（P <0.05）;miR-133a-3p低表达胃癌患者的5年生存率低于miR-133a-3p高表达胃癌患者（P <0.05）。结论 胃癌患者血清miR-122-5p、miR-133a-3p mRNA相对表达量呈低表达,并且两者与胃癌的恶性程度和患者不良预后密切相关,血清miR-122-5p、miR-133a-3p可能成为胃癌患者预后预测的潜在生物标志物。     

CD44v6与胃癌淋巴结转移及预后关系研究

目的探讨CD44v6与胃癌淋巴结转移及预后的关系。方法采用免疫组织化学方法检测208例胃癌组织和相应癌旁组织中CD44v6蛋白的表达情况,分析CD44v6与胃癌淋巴结转移及预后之间的关系。结果CD44v6在胃癌中的表达率（59.1％）明显高于癌旁组织（0）。CD44v6表达阳性与阴性患者术后5年生存率分别为38.8%和76.3%,差别有统计学意义（P＜0.05）。多因素分析提示,CD44v6高表达为胃癌的独立预后因素;CD44v6和浸润深度是淋巴结转移的独立危险因素。分层分析发现,淋巴结有转移者CD44v6表达阳性与阴性的5年生存率分别30.3%和67.7%（P＜0.05）,淋巴结无转移者CD44v6表达阳性与阴性的5年生存率分别77.3%和81.8%（P＞0.05）。结论CD44v6表达阳性的胃癌患者易发生淋巴结转移,预后较差;CD44v6可能成为预测胃癌预后指标之一。     

胃癌组织Rac1表达与临床病理特征的相关性

【目的】研究胃癌组织中Rac1蛋白表达与临床病理特征和生存期并讨论其临床意义。【方法】运用免疫组化和组织芯片技术联合检测胃癌组织95例,对应淋巴结30例（其中有转移灶20例）,无癌癌旁≥6cm组织27例进行Rac1蛋白的表达。另取30例胃正常组织作对照。【结果】正常胃粘膜Rac1蛋白表达阳性率（13.3%）明显低于胃癌组织（72.0%）和癌旁组织（55.6%,P〈0.01）。Rac1蛋白表达与淋巴结转移、分化程度、浸润深度及Lauren分型密切相关（P〈0.05）。胃癌原发灶Rac1蛋白表达阳性率（85.0%）高于相应淋巴结转移灶（60.0%,P〈0.05）。COX多因素回归分析表明,Rac1蛋白表达阳性患者生存时间明显缩短（P〈0.05）,是生存期预测因子。【结论】胃癌组织Rac1蛋白与胃癌临床病理特征和生存期密切相关。     

胃癌组织中CD133 mRNA表达及与临床病理特征的关系

目的探讨CD133 mRNA在胃癌组织中的表达及与临床病理特征的关系。方法选取31例手术切除的胃癌组织和癌旁正常胃黏膜组织标本,半定量RT—PCR检测CD133 mRNA的表达,分析胃癌组织CD133 mRNA表达与性别、年龄、肿瘤直径、浸润深度、TNM分期、肿瘤分化程度、淋巴结转移和Ki-67增殖指数等临床病理特征的关系。结果胃癌组织和癌旁正常胃黏膜组织CD133 mRNA的相对灰度值分别为0．3783±0．1411和0．0381±0．0919（P=0．000）;肿瘤直径〉5cm者胃癌组织CD133 mRNA相对灰度值显著高于肿瘤直径≤5cm者[（0．4393±0．1484）w（0．3343±0．1212）]（P=0．041）;有淋巴结转移者显著高于无淋巴结转移者[（0．4266±0．1320）／35（0．2395±0．0309）]（P=0．004）,淋巴结转移率和转移淋巴结数与CD133 mRNA相对灰度值呈正相关（r=0．466,P=0．008;r=0．464,P=0．009）;Ki-67低表达者CD133 mRNA相对灰度值显著高于Ki-67高表达者[（0．4364±0．1398）vs（0．3164±0．1174）]（P=0．02）,Ki-67表达与CD133 mRNA相对灰度值呈负相关（r=-0．461,P=0．009）。结论 胃癌组织CD133 mRNA的表达与反映淋巴转移的淋巴结转移率和转移淋巴结数及反映肿瘤增殖状态的Ki-67表达相关。     

P－选择素在胃癌中表达及其预后意义

应用免疫组化ＬＳＡＢ法对６０例胃癌患者检测Ｐ－选择素在胃癌组织中的表达，并对其中的５５例作长期随访，以研究与胃癌组织学分型、分化程度、淋巴转移、ＴＮＭ分期及其与；临床预后的关系。结果发现６０例胃癌组织中３２例阳性（阳性率５３．３％）。Ｐ－选择素不仅在肿瘤血管内皮上表达，也在肿瘤细胞膜上表达。淋巴结有癌转移者Ｐ－选择素阳性表达率为７０．３％（２６／３７例），显著高于无淋巴结转移的２６．１％（６／２３）（Ｐ＜０．０１）；晚期胃癌（Ⅲ、Ⅳ期）阳性率为８０％，显著高于Ⅰ、Ⅱ期早期胃癌２６．７％的表达率（Ｐ＜０．０１）。５５例随访资料分析表明，Ｐ－选择素阳性表达者平均生存期（２５．５±２１．８月）和五年生存率（１０．７％）显著低于阴性者（Ｐ＜０．０１）。研究结果提示Ｐ－选择素与胃癌浸润转移相关，可能是一种新的胃癌预后指标。     

pN0胃癌淋巴结微转移的研究

目的：证实常规病理检查（HE染色）结果全部阴性的胃癌淋巴结（pN0）存在微转移（MM）,探讨pN0胃癌淋巴结微转移与胃癌临床病理学的关系。方法：选取行胃癌根治术,常规病理检查（HE染色）证实淋巴结转移全部阴性的胃癌（腺癌）病例40例,收集其淋巴结蜡块146个,淋巴结共298枚。分别用鼠单抗CK7和鼠单抗CK19行免疫组织化学染色,确定其有无微转移。结果：两组有10例（25%）共计26枚淋巴结（8.72%）发现微转移。其中CK7组6例,阳性率15%,CK19组4例,阳性率10%。胃癌微转移淋巴结的检出数量分别为：CK7组16枚（5.37%）,CK19组10枚（3.35%）。胃癌淋巴结微转移的存在与肿瘤的侵及深度有关（P〈0.05）,与患者的性别、年龄,肿瘤部位、大小等无关（P〉0.05）。结论：常规病理学检查全部阴性的胃癌淋巴结存在微转移,CK7和CK19均是免疫组化检测胃癌淋巴结微转移的理想指标,对指导胃癌的手术治疗具有积极意义。     

VEGF-C和VEGF-D在胃癌组织中的表达 与淋巴结转移的关系

目的：探讨胃癌患者血管内皮生长因子C和D(vascular endothelial growth factor-C and-D, VEGF-C and VEGF -D)在胃癌组织中的表达及其与肿瘤淋巴结转移的关系。方法：应用免疫组织化学SABC法及Real-time PCR法检测32例胃癌组织和32例正常胃组织中VEGF-C,VEGF-D蛋白及其mRNA的表达。 结果：胃癌组织VEGF-C和VEGF-D表达明显高于正常胃组织（P<0.01）, 其中淋巴结转移组VEGF-C,VEGF-D的表达与淋巴结未转移组间差异有统计学意义（P<0.05）。VEGF-C和VEGF-D在胃癌组织中的表达与淋巴结转移有关(P<0.01)。VEGF-C和VEGF-D的表达在高分化癌、中分化癌和低分化癌中的差别有统计学意义(P<0.05)。VEGF-C和VEGF-D 在胃癌细胞中的表达与患者年龄、 性别和淋巴结远处转移无关（P>0.05）。结论：胃癌细胞非摄入性高表达的VEGF-C和VEGF-D与淋巴结转移密切相关,可作为评估胃癌患者预后的重?慰贾副辍?     

早期胃癌淋巴结转移影响因素的分析

目的探讨早期胃癌淋巴结的转移规律及其对预后的影响,为具有不同临床病理特征的早期胃癌患者选择合适的治疗方案。方法回顾性分析137例早期胃癌患者临床病理特征与淋巴结转移的关系,并分析早期胃癌术后5a生存率。结果肿瘤大小、浸润深度和组织学类型是影响早期胃癌淋巴结转移的独立危险因素,无淋巴结转移的早期胃癌术后5a生存率为93.2%,明显高于有淋巴结转移者的63.8%(P<0.05)。结论术前正确评估早期胃癌的淋巴结转移状态是选择合理治疗方案的重要条件。