肾癌区域淋巴结转移的临床分析

目的 了解肾癌区域淋巴结转移的临床特点及发生发展规律,提高对本病的诊治效果.方法 回顾性分析2004年1月至2008年12月19例肾癌伴有区域淋巴结转移患者的资料.男15例,女4例.年龄29～77岁,中位年龄57岁.肿瘤位于左肾12例,右肾7例.腹膜后肿大淋巴结最大径1.5～5.0 cm,中位数2.8 cm,其中4例影像学检查未发现肿大淋巴结,术中探查证实.行腹膜后肿大淋巴结切除11例,区域淋巴结清扫8例.结果 肾癌发生区域淋巴结转移占同期收治肾癌的1.6%(19/1213).术后19例均获随访,随访时间8～78个月,中位数34个月.无瘤生存6例,带瘤生存7例,死亡6例,5年生存率68.4%.腹膜后区域淋巴结清扫组与肿大淋巴结切除组生存期及术后复发转移率比较差异均无统计学意义(P=0.644;P=0.319).结论 肾癌发生单纯区域淋巴结转移少见,术前影像学可能漏诊,部分患者通过区域淋巴结清扫或肿大淋巴结切除可获得无瘤生存.

Abstract：

Objective To discuss the characteristics of renal cell carcinoma with regional lymph node metastasis at diagnosis. Methods The data of 19 patients diagnosed with renal cell carcinoma with regional lymph node metastases at diagnosis from January 2004 to December 2008 were reviewed.The median age was 57 years (29-77).The study group included 15 males and four females.The primary tumor was located in the left kidney in 12 patients and fight in seven patients.The median maximam diameter of retroperitoneal lymph nodes was 2.8 cm(1.5-5.0).The lymph nodes in four patients were not detected by the preoperative image examination,but were confirmed by intraoperative exploration.Eleven cases had enlarged retroperitoneal lymph nodes resected and eight had regional lymph nodes dissected. Results The patients with regional lymph node metastases at diagnosis of renal celI carcinoma accounted for 1.6% (19/1213) of the total renal cell carcinoma cases.With a median follow-up of 34 months,six patients were survival without progression,and seven were survival with progression.giving a 5-year survival rate of 68.4%.The survival and recurrence rates after surgery were not significantly different by Fisher test(P=0.644 and 0.319 respectively) between the patients who underwent retroperitoneal regional lymph node dissection and those who underwent enlarged lymph node resection. Condmiom Renal cell carcinoma with regional lymph node metastasis at diagnosis is uncommon.Some patients may achieve long-term tumor-free survival through regional lymph node dissection or enlarged Iymph nodes resection.     

胆囊癌不同手术方式的疗效分析

Objective To investigate the therapeutic effects of different surgical procedures for the treatment of gallbladder cancer. Methods The clinical data of 81 patients with gallbladder cancer who were admitted to the West China Hospital of Sichuan University from January 2000 to October 2009 were retrospectively analyzed.The efficacies of different surgical procedures for the treatment of gallbladder cancer, and the relationship between T stage and lymph node metastasis were investigated. The postoperative survival rates of patients in different TNM stages were analyzed and compared using the Kaplan-Meier method and Log-rank test, respectively. Results The median survival times of patients in stage Ⅰ , Ⅱ ,Ⅲ and Ⅳ were 68, 18, 7 and 5 months, respectively. The 1-,3-, 5-year survival rates were 100%, 80% and 60% for patients in stage Ⅰ, 57%, 29% and 14% for patients in stage Ⅱ, 27%, 7% and 0 for patients in stage Ⅲ and 11%, 4% and 0 for patients in stage Ⅳ. There were significant differences in the survivals of patients in different TNM stages ( P ＜ 0.05 ). Of the 81 patients, 67 received surgical treatment. The 5-year survival rate was 100% for patients in stage T1b who received standard radical resection and 0 for patients who received simple cholecystectomy. The median survival time was 45 months for patients in stage Ⅱ who received standard radical resection and 12 months for patients in stage Ⅱ who received simple cholecystectomy, and their 1-, 3-, 5-year survival rates were 67%, 33%, 33% and 50%, 0, 0, respectively, with significant differences ( P ＜ 0. 05 ). The 1-, 3-, 5-year survival rates of patients in stage Ⅲ who received standard radical resection were 33%, 17% and 6%, respectively. The survival time of patients who received extended radical resection was longer than 12 months, while the survival time of patients who received standard radical resection or other palliative therapy was shorter than 12 months. The 1-, 3-, 5-year survival rates of patients in stage Ⅳ who received extended radical resection and standard radical resection were 38%, 12%, 0and 14%, 0, 0, respectively. The survival time of patients in stage Ⅳ who received other treatments was shorter than 12 months. Lymph node metastasis were identified in 7 patients in stage T2(n = 15), 7 patients in stage T3(n = 14), and 12 patients in stage T4(n = 13), no patient in stage T1 (n =2) was found with lymph node metastasis. Conclusions Lymph node metastasis is significantly influenced by the depth of invasion of the gallbladder cancer. For patients in stage T1b, Ⅱ and Ⅲ, radical resection of gallbladder cancer is necessary; for patients in stage Ⅳ, although the incidence of complication is higher, the survival time is much longer when compared with other treatments.     

Lymph node harvest in colon and rectal cancer: Current considerations

The prognostic significance of identifying lymph node(LN) metastases following surgical resection for colon and rectal cancer is well recognized and is reflected in accurate staging of the disease.An established body of evidence exists,demonstrating an association between a higher total LN count and improved survival,particularly for node negative colon cancer.In node positive disease,however,the lymph node ratios may represent a better prognostic indicator,although the impact of this on clinical treatment has yet to be universally established.By extension,strategies to increase surgical node harvest and/or laboratory methods to increase LN yield seem logical and might improve cancer staging.However,debate prevails as to whether or not these extrapolations are clinically relevant,particularly when very high LN counts are sought.Current guidelines recommend a minimum of 12 nodes harvested as the standard of care,yet the evidence for such is questionable as it is unclear whether an increasing the LN count results in improved survival.Findings from modern treatments,including down-staging in rectal cancer using pre-operative chemoradiotherapy,paradoxically suggest that lower LN count,or indeed complete absence of LNs,are associated with improved survival;implying that using a specific number of LNs harvested as a measure of surgical quality is not always appropriate.The pursuit of a sufficient LN harvest represents good clinical practice;however,recent evidence shows that the exhaustive searching for very high LN yields may be unnecessary and has little in? uence on modern approaches to treatment.     

59例30岁以下原发性肺癌的临床及病理

Objective To investigate and analyze the clinical and pathological features of surgical treatment for primary bronchogenic carcinoma in adolescent patients.Methods A retrospective review is presented of patients less than 30 years with surgical treatment of bronchogenic carcinoma between 1969 and 2008.There were59 patients (36 male and 23 female).Mean age was 23 years ( range 8-29 ) .The ratio of men to women patients was 1.7∶1.Forty-nine cases ( 83.0% ) were symptomatic at presentation and 18 cases(30.5% )were misdiagnosed as other diseases.Surgical procedures included radical resection in 46 cases,palliative resection in 3 cases,thoracotomy only for unresectable disease in 7 cases and VATS biopsy in 3 cases.The histological types were 18 adenocarcinomas,13 carcinoids,9 mucoepidermoid carcinoma,5 squamous cell carcimomas,4 small cell lung cancer,3 adenosquamous carcinoma and 4 others.On TNM staging,8 cases in stage Ⅰa,3 cases in stage Ⅰb,9 cases in stage Ⅱ a,12 cases in stage Ⅱb,15 cases in stage Ⅲa,8 cases in stage Ⅲb,4 cases in stageⅣ.Results There were no operative death in radical group.Post-operative atelectasis in 3 cases.One case died from postoperative respiratory failure in explosive group,the postoperative five year survival rate was 27.0%.radical resection group 5-year survival was 35%.Univariate analysis identified TNM stage and surgical procedures as predictors of survival( P <0.05).factors that had no significant effect on overall survival included gender,histologic sbutype and postoperative chemotherapy (P > 0.05).The 5 year survival in stage Ⅰ,Ⅱ,Ⅲa,Ⅲb + Ⅳ were 75.0%,33.3%,14.3% and 0,respectively.The 5 year survival in lobectomy,pneumonectomy and exporsive were 43.0%,18.2% and O,respectively.On multivariate analysis,TNM stage of disease was the only independent predictor of survival ( P =0.000) .Conclusion We should pay attention to adolescent lung cancer and improve the diagnosis rate avoiding of delaying surgical treatment.The five year survival rate of radical resection for adolescent lung cancer was good.They should be treated with aggressive multimodality therapy and surgical resection is the first-line treatment for them.     

59例30岁以下原发性肺癌的临床及病理

Objective To investigate and analyze the clinical and pathological features of surgical treatment for primary bronchogenic carcinoma in adolescent patients.Methods A retrospective review is presented of patients less than 30 years with surgical treatment of bronchogenic carcinoma between 1969 and 2008.There were59 patients (36 male and 23 female).Mean age was 23 years ( range 8-29 ) .The ratio of men to women patients was 1.7∶1.Forty-nine cases ( 83.0% ) were symptomatic at presentation and 18 cases(30.5% )were misdiagnosed as other diseases.Surgical procedures included radical resection in 46 cases,palliative resection in 3 cases,thoracotomy only for unresectable disease in 7 cases and VATS biopsy in 3 cases.The histological types were 18 adenocarcinomas,13 carcinoids,9 mucoepidermoid carcinoma,5 squamous cell carcimomas,4 small cell lung cancer,3 adenosquamous carcinoma and 4 others.On TNM staging,8 cases in stage Ⅰa,3 cases in stage Ⅰb,9 cases in stage Ⅱ a,12 cases in stage Ⅱb,15 cases in stage Ⅲa,8 cases in stage Ⅲb,4 cases in stageⅣ.Results There were no operative death in radical group.Post-operative atelectasis in 3 cases.One case died from postoperative respiratory failure in explosive group,the postoperative five year survival rate was 27.0%.radical resection group 5-year survival was 35%.Univariate analysis identified TNM stage and surgical procedures as predictors of survival( P <0.05).factors that had no significant effect on overall survival included gender,histologic sbutype and postoperative chemotherapy (P > 0.05).The 5 year survival in stage Ⅰ,Ⅱ,Ⅲa,Ⅲb + Ⅳ were 75.0%,33.3%,14.3% and 0,respectively.The 5 year survival in lobectomy,pneumonectomy and exporsive were 43.0%,18.2% and O,respectively.On multivariate analysis,TNM stage of disease was the only independent predictor of survival ( P =0.000) .Conclusion We should pay attention to adolescent lung cancer and improve the diagnosis rate avoiding of delaying surgical treatment.The five year survival rate of radical resection for adolescent lung cancer was good.They should be treated with aggressive multimodality therapy and surgical resection is the first-line treatment for them.     

残胃癌的淋巴结转移特点及外科治疗

Objective To explore the characteristics of lymph node metastasis in gastric stump cancer and the efficacy of surgical treatment. Methods The clinical data of 42 patients with gastric stump cancer (test group) and 56 patients with primary cancer in the upper stomach (control group) who were admitted to The First Affiliated Hospital of Dalian Medical University from January 1994 to January 2008 were retrospectively analyzed. All data were analyzed by t test and chi-square test. The survival of the patients and lymph node metastasis rate were analyzed using the Kaplan-Meier method and Log-rank test, respectively. Results The metastasis rates of lymph nodes 1-3 of the test group and control group were similar (43%-61%), with no significant difference between the 2 groups (χ2 = 0.752, 0. 833, 0. 678, P > 0. 05). The metastasis rates of lymph nodes 7-9 of the test group and control group were 22% , 18% , 25% and 46% , 25% , 30% , respectively, and this was signifi-cantly different between the 2 groups (χ2 = 2. 168, 3. 263, 5. 761, P < 0. 05). The metastasis rates of lymph nodes 10-14 were 47% , 36% , 31% , 20% and 25% in the test group, which were significantly higher than 33% , 34% , 19% , 6% and zero in the control group, respectively (χ2 =3.225, 1.883, 3.945, 4.137, 6.823, P <0.05). The metastasis rate of lymph node no. 16 was zero in the test group and 23% in the control group. The metastasis rate of jejunal mesenteric lymph nodes was 27% in the test group and zero in the control group. The accumulative 5-year survival rate of patients was 38% in the test group and 48% in the control group, and this was significantly different (χ2 =4. 165, P<0.05). The overall 5-year survival rate of patients with radical resection was not significantly different between degree A (54%) and B (57%) (χ2 = 0. 622, P > 0. 05). Conclusions Gastric stump cancer has a unique pattern in lymph node metastasis. Surgical resection is effective in improving the prognosis of patients with gastric stump cancer.     

Number of lymph nodes after neoadjuvant therapy for rectal cancer: How many are needed?

Neoadjuvant chemoradiation is the standard treatment for advanced rectal tumor,providing better local control of disease and potentially increasing sphincter preservation surgery.Neoadjuvant radiation may affect the number of lymph nodes harvested after resection or alter their prognostic value.Over the past 10 years,standards for lymph node harvests in colorectal cancer have been proposed.Several studies have recommend examination of at least 12 lymph nodes(LNs) in the specimen and this number is now used as a reflection of surgical quality.Nevertheless,recent reports have identified significantly decreased LN harvests in patients treated with neoadjuvant radiation.And preoperative chemoradiation has a significant effect on the number of nodes harvested in rectal specimens and this should be considered in staging of the tumor.In the near future,the total number of nodes will be less important than specific biologic markers in detecting high-risk patients and improving their prognosis with adjuvant therapy tailored.     

残胃癌的淋巴结转移特点及外科治疗

Objective To explore the characteristics of lymph node metastasis in gastric stump cancer and the efficacy of surgical treatment. Methods The clinical data of 42 patients with gastric stump cancer (test group) and 56 patients with primary cancer in the upper stomach (control group) who were admitted to The First Affiliated Hospital of Dalian Medical University from January 1994 to January 2008 were retrospectively analyzed. All data were analyzed by t test and chi-square test. The survival of the patients and lymph node metastasis rate were analyzed using the Kaplan-Meier method and Log-rank test, respectively. Results The metastasis rates of lymph nodes 1-3 of the test group and control group were similar (43%-61%), with no significant difference between the 2 groups (χ2 = 0.752, 0. 833, 0. 678, P > 0. 05). The metastasis rates of lymph nodes 7-9 of the test group and control group were 22% , 18% , 25% and 46% , 25% , 30% , respectively, and this was signifi-cantly different between the 2 groups (χ2 = 2. 168, 3. 263, 5. 761, P < 0. 05). The metastasis rates of lymph nodes 10-14 were 47% , 36% , 31% , 20% and 25% in the test group, which were significantly higher than 33% , 34% , 19% , 6% and zero in the control group, respectively (χ2 =3.225, 1.883, 3.945, 4.137, 6.823, P <0.05). The metastasis rate of lymph node no. 16 was zero in the test group and 23% in the control group. The metastasis rate of jejunal mesenteric lymph nodes was 27% in the test group and zero in the control group. The accumulative 5-year survival rate of patients was 38% in the test group and 48% in the control group, and this was significantly different (χ2 =4. 165, P<0.05). The overall 5-year survival rate of patients with radical resection was not significantly different between degree A (54%) and B (57%) (χ2 = 0. 622, P > 0. 05). Conclusions Gastric stump cancer has a unique pattern in lymph node metastasis. Surgical resection is effective in improving the prognosis of patients with gastric stump cancer.     

A new blood supply for human primary gallbladder carcinomas:vasculogenic mimicry,and its correlation with VEGF and significance

Objective To explore if vasculogenic mimicry (VM) exists in human primary gallbladder carcinomas and evaluate the correlation between the VM and expression of vascular epithelial growth factor (VEGF) in gallbladder carcinomas and its significance. MethodsSeventy-four carcinomas, 10 adenomas and 10 chronic inflammatory lesions of the gallbladder underwent operation and confirmed histopathologically were studied. Clinical-pathological data and survival of each patient with gallbladder carcinoma were recorded and followed-up. VM in human gallbladder carcinomas was observed under light microscope by HE staining, CD31 and PAS staining; the expression of VEGF proteins in each paraffin section of each patient in vivo was determined by Envision method of immunohistochemistry; the correlation among the VM, VEGF expression and their clinical significance in the patients with gallbladder carcinomas were analyzed and compared by Kaplan-Meier actuarial survival curves and Cox multiple factors. Results①13.5% (10/74) of human gallbladder carcinomas were found to contain VM, namely intratumoral, tumor cell-lined extracellular matrix (ECM)-rich, PAS-positive and vasculogenic-like network patterns. VM was associated with histological type (χ2=10.241,P=0.017), hepatic metastasis (χ2=4.238,P=0.042) and poor overall survival (χ2=5.722 1,P=0.016). ②Expression of VEGF was increased significantly in carcinomas with or without VM than adenomas and inflammatory lesions of the gallbladder (P0.000 1) in vivo; VEGF expression in the gallbladder carcinomas without VM was increased significantly than that with VM (P=0.018 2). ③There is positive correlation between expression of VEGF and the gallbladder carcinomas without VM in the cases of Nevin stage (P=0.003 5), invasion depth (P=0.005 9), liver metastases (P=0.037 3) and lymph node metastases (P=0.000 1), the same correlation was only observed between expression of VEGF and the gallbladder carcinomas with VM in the cases of liver metastases (P=0.032 3). When being compared the non-VM gallbladder carcinomas with the VM gallbladder carcinomas, expression of VEGF in the same conditions of Nevin stage (S3～S5, P=0.049 0) was higher significantly in the gallbladder carcinomas without VM than those with VM. ④The non-VM group underwent operation with positive expression of VEGF had longer 5-year survival than the VM group (P=0.007 2), furthermore, the non-VM group underwent operation with negative expression of VEGF had longer 5-year survival than the positive expression group (P=0.031). Also, VM, as invasive depth, lymph node metastasis, hepatic metastasis and operational method, is an independent, risk prognostic factor for patients with gallbladder carcinoma by Cox multiple factor analysis. ConclusionsVM, as a new blood supply for the growth of gallbladder carcinomas, is found to exist in the patients with gallbladder carcinomas. Increased expression of VEGF and its negative correlation with VM were observed in the gallbladder carcinomas. It is showed that VM is an independent risk prognostic factor in patients with gallbladder carcinoma, and VEGF is an important clinical marker for evaluation of Nevin stage, invasion depth, lymph node or liver metastases and prognosis in patients with gallbladder carcinoma; VM and VEGF are especially of important markers for estimating of prognosis in the gallbladder carcinoma patients.     

盆腔侧方淋巴结转移对低位直肠癌预后的影响

Objective To evaluate the prognostic value of lateral pelvic lymph node metastasis on low rectal cancer. Methods One hundred and seventy-six patients with low rectal cancer who underwent radical resection combined with lateral pelvic lymph node dissection between 1994 and 2005 were reviewed. The data of the cases was investigated to define the prognostic value of lateral pelvic lymph node metastasis on the patients. Results Lateral node metastasis occurred in 33 patients (18.8%), and 51.5% of the metastasis occurred in internal iliac nodes or nodes at middle rectal roots and 39.4% in obturator nodes. Age ≤40 years, infiltrative cancer, T3-4 tumor, upward lymph node metastasis were risk factors for lateral node metastasis in low rectal cancer (P ＜ 0.05). The overall 5-year survival rate was 64.1%, and it was 94.1%, 79.1%, 42.1% for patients with TNM stage Ⅰ , Ⅱ , Ⅲ cancer, respectively. Tumor size, depth of infiltration, upward lymph node metastasis, lateral node metastasis was correlated significantly with prognosis (P ＜ 0.05). The 5-year survival rate of the patients without lateral metastasis was 73.6%, which was significant higher than that of patients with lateral metastasis (21.4%, P ＜0.05). Conclusion Lateralpelvic lymph node metastasis is an important prognostic factor for low rectal cancer.     

pT2期胆囊癌的手术治疗及预后

目的：探讨pT2期胆囊癌的治疗与预后。方法：15例pT2期胆囊癌病例入选,对比分析存活率和手术相关的4个预后因素,包括手术方式、手术中是否有胆汁溢出,手术切缘是否残留肿瘤、淋巴结是否转移。结果：全组单纯胆囊切除术8例,胆囊癌根治术7例;胆汁溢出发生3例,手术切缘肿瘤残留3例,淋巴结转移5例。多因素分析表明手术切缘是否残留肿瘤、手术方式、胆汁溢出及淋巴结是否转移是影响预后的独立因素;Log-rank检验表明生存率与手术切缘是否阴性、手术方式、胆汁溢出及淋巴结是否转移有相关性。结论：对于pT2期胆囊癌患者,如果患者无淋巴结转移,术中无胆汁溢出,手术切缘肿瘤无残留,行根治性胆囊癌手术可达到较好效果。     

Significance of Extensive Surgery Including Resection of the Pancreas Head for the Treatment of Gallbladder Cancer—From the Perspective of Mode of Lymph Node Involvement and Surgical Outcome

The present study aimed to clarify the efficacy of extensive surgery, including pancreas head resection, for more complete lymphadenectomy in the treatment of gallbladder carcinoma. The study involved retrospective analyses of 65 consecutive patients with gallbladder carcinoma who underwent surgical resection between 1982 and 2003. Of these 65 patients, 41.5% displayed node-positive disease and among them 23.1% had positive para-aortic nodes. Of six node-positive 5-year survivors, five underwent pancreatoduodenectomy combined with S4aS5 hepatic subsegmentectomy. The 5-year survival rates were 76.2% for pN0, 30.0% for pN1, 45.8% for pN2, and 0% for pM1[lymph], respectively. Significant differences existed in survival rates. Postoperative recurrence was observed in 24.1% (13/54) of patients who underwent R0 resection. Of the four patients who displayed lymph node recurrence, two had pericholedocal and/or posterior pancreatoduodenal lymph node metastasis at the time of surgery and underwent pancreas-preserving regional lymphadenectomy. These results suggest that extensive resection, including resection of the pancreatic head, is effective in selected patients with up to pN2 lymph node metastasis, as long as complete removal of the cancer can be achieved. Pancreatoduodenectomy combined with S4aS5 hepatic subsegmentectomy should be considered when lymph node metastasis is obvious and the patient is in good condition.     

Aggressive surgery for stage IV gallbladder carcinoma; what are the contraindications?

Background/Purpose Advanced gallbladder carcinoma with paraaortic lymph node metastasis or distant metastasis is normally considered a contraindication for surgery. Our latest analyses suggest otherwise. Methods Records of 166 patients who underwent surgery for stage IV gallbladder carcinoma were reviewed retrospectively. Predictors of hospital mortality and long-term survival were analyzed. Long-term survival in patients with paraaortic lymph node metastasis and/or distant metastasis was also determined. Results Fifteen patients were 5-year survivors, with a 5-year survival rate of 12% among the 166 patients investigated. Overall hospital mortality was 14%. Male sex and portal vein resection were independent predictors of hospital mortality. Multivariate analysis of long-term survival failed to identify independent predictors. Patients with distant metastasis were divided into two groups based on whether or not the metastases were distant from the liver. Patients with paraaortic lymph node metastasis who underwent curative resection or who had isolated liver metastasis survived longer than those with other distant metastasis or those with unresectable advanced cancer. Conclusions Patients with advanced gallbladder carcinoma can benefit from surgical resection even when paraaortic lymph node metastasis and/or liver metastasis are present. However, surgical indications in advanced disease should be determined on an individual basis, based on clinical status.     

胆囊癌切除范围研究进展

胆囊癌是胆道系统最常见的恶性肿瘤,早期诊断困难,恶性程度高,易发生转移和复发。以手术为主的综合治疗是改善胆囊癌病人生存的唯一方法,但仍存在若干争议,如T2期是否需要行肝段切除、扩大根治术是否可以延长晚期胆囊癌病人的生存时间、各期胆囊癌淋巴结清扫范围等。结合术中所见、病理学检查等判断胆囊癌的肿瘤分期,并依据分期规范切除范围和淋巴结清扫是提高R0根治切除率的关键,且扩大根治术可以改善晚期病人的预后。     

A Curative Resection Improves the Postoperative Survival Rate Even in Patients with Advanced Gallbladder Carcinoma

The aim of this study was to evaluate the results of our series of 90 operations for gallbladder carcinoma according to the Japanese Society of Biliary Surgery (JSBS) classification system and to clarify the appropriate surgical strategy for advanced gallbladder carcinoma based on the depth of primary tumor invasion and lymph node metastasis. Generally, only a surgical resection can achieve a prognostic improvement of the advanced gallbladder carcinoma. The survival of patients with this neoplasm depends strictly on the depth of histological primary tumor invasion and lymph node metastasis. A retrospective analysis was conducted on 90 patients from 1990 to 2004 who underwent a surgical resection of gallbladder carcinoma. The factors influencing survival were examined. Thirty-nine patients with palliative treatment (not resected cases), which was diagnosed as T3 or T4 by preoperative imagings, were also included in this study. The significance of the variables for survival was examined by the Kaplan-Meier method and the log-rank test followed by multivariate analyses using Cox's proportional hazard model. Portal invasion, lymph node metastasis, the surgical margin (+ vs. -) and the final curability (fCurA, B vs. C) were all found to be independent prognostic factors in the multivariate analysis. In pT2 gallbladder carcinoma, a better survival was achieved in an aggressive surgical approach, in order of a S4a+S5 hepatic resection, an extended cholecystectomy and a cholecystectomy. In pT3 and pT4, although radical extended surgery did not provide the opportunity for good survival even after lobectomy of the liver, the survival of patients with curative surgery was statistically better than in those without curative surgery. In addition, the nodal involvement of pN1 to pN2 was better than that with pN3. A S4a+S5 hepatectomy, therefore, appears to be adequate for the treatment of pT2 gallbladder carcinoma. Even in patients with pT3 and pT4 gallbladder carcinoma, long-term survival can be expected by an operation with a tumor-free surgical margin. The role of radical surgery, however, is considered to be limited in patients with pN3 lymph node metastasis.     

中晚期胆囊癌34例的外科治疗

目的　探讨对中晚期胆囊癌积极进行外科治疗的价值。方法　对 34例中晚期胆囊癌 ,除行胆囊切除外 ,行肝段切除 7例、半肝切除 1例、肝门部胆管切除高位胆肠吻合 4例、肝段切除 肝门部胆管切除高位胆肠吻合 6例、肝部分切除及胰头十二指肠切除 16例。其中同时行肝十二指肠韧带淋巴结骨骼化清扫 2 8例 ,行肾门淋巴结清扫 1例 ,行右半结肠切除 1例 ,行受累肝动脉切除2例。结果　手术均顺利完成 ,并发胆漏 6例 ,其中死于多器官功能衰竭 1例 ,经引流后愈合 5例 ;1例并发应激性溃疡出血。 12个月前手术者 17例 ,10例仍存活 ,其中 2例存活已超过 30个月 ,最长者达 48个月 ;17例 12个月内手术者 16例存活。结论　对中晚期胆囊癌积极进行手术治疗 ,能改善患者生活质量 ,延长生存期。     

Retrospective analysis of outcome in 63 gallbladder carcinoma patients after radical resection

BACKGROUND/PURPOSE: The aim of this study was to evaluate factors influencing outcome in gallbladder carcinoma after radical resection, in order to identify those patients benefiting from radical surgery. METHODS: Sixty-three patients (13 pT1, 28 pT2, 14 pT3, and 8 pT4) who underwent surgical resection for gallbladder carcinoma were retrospectively reviewed. Correlations were sought between survival and factors such as the depth of invasion (pT) including the status of infiltration of the hepatoduodenal ligament (pBinf) and liver bed (pHinf), the extent of lymph node metastasis, and other pathologic factors. RESULTS: Multivariate analysis showed that pBinf, pHinf, and lymph node metastasis were significant prognostic factors. We also analyzed survival rates for each operative procedure. There was no difference in survival between patients with or without bile duct resection for lymph node metastasis. The 5-year survival rates of pHinf-negative patients with stage 1B or more advanced disease after gallbladder bed resection or bisegmentectomy 4a,5 versus those without liver resection were 66% and 0%, respectively. Twelve patients survived for more than 5 years after surgery, including one patient undergoing HPD (liver resection with pancreatoduodenectomy) with positive lymph node metastasis; none was pBinf-positive. CONCLUSIONS: Several factyors were identified as having prognostic significance for survival in patients with gallbladder carcinomas, and we suggest that radical surgery may be indicated for selected patients with advanced disease.     

Radical surgery for gallbladder carcinoma. Long-term results.

The authors' objective was to evaluate the effectiveness of radical surgery with lymph node dissection for gallbladder carcinoma. Long-term results were analyzed in 40 patients in a 5-year study. The authors divided the 40 cases into two groups: 20 without positive nodes and 20 with positive nodes. In the group without positive nodes, one patient who underwent R1 resection died of a recurrence at 1 year 7 months. Seventeen of the 19 patients treated with R0 resection survived more than 5 years. The 5-year survival rate was 85% (17/20). In the group with positive nodes, 9 of the 13 patients treated with R0 resection survived more than 5 years, whereas the seven patients treated with R1 or R2 resection died within 5 years. The 5-year survival rate was 45% (9/20). Patients treated by R0 resection showed a 5-year survival rate of 69% (9/13). Thus we documented the favorable long-term results of radical surgery. R0 resection is a prerequisite for long-term survival. The results justify radical surgery with lymph node dissection.     

Surgical Outcomes and Prognostic Factors for T2 Gallbladder Cancer Following Surgical Resection

Background

Depth of tumor invasion is an important prognostic factor for gallbladder cancer. The aim of this study was to investigate the clinicopathological prognostic factors of T2 gallbladder cancer.

Methods

We retrospectively reviewed the clinicopathological data and survival for 83 patients with T2 gallbladder cancers who underwent surgical resection between January 1995 and December 2007.

Results

The overall survival rates were 48.9% at 3 years and 29.3% at 5 years. Univariate analysis revealed that R0 resection (P?<?0.001), extended surgery (P?=?0.028), lymph node dissection (P?=?0.024), non-infiltrative tumors (P?=?0.001), well differentiation (P?=?0.001), absence of lymphatic (P?=?0.025), perineural (P?=?0.001), and vascular (P?=?0.025) invasion, absence of lymph node metastasis (P?=?0.001), negative resection margin (P?=?0.016), and stage (P?=?0.002) were significantly better predictors for survival. A significant difference in survival between Rx and R1 was not found. R0 resection, lymph node dissection, well differentiation, and absence of perineural and vascular invasion were significantly independent prognostic factors for overall survival. Recurrence occurred in 48 patients (57.8%). Age older than 65 years, R0 resection, non-infiltrative tumors, and good differentiation were significant independent predictors of disease-free survival by multivariate analysis.

Conclusions

For T2 tumors, radical surgery including lymph node dissection should be performed to achieve R0 resection. Tumors with infiltrative types and suspicious lymph node metastasis in the intraoperative findings were candidates for aggressive surgical management to improve patient survival.     

Immunohistochemically demonstrated lymph node micrometastasis and prognosis in patients with gallbladder carcinoma

OBJECTIVE: To investigate whether immunohistochemically demonstrated lymph node micrometastasis has a survival impact in patients with advanced gallbladder carcinoma (pT2-4 tumors). SUMMARY BACKGROUND DATA: The clinical significance of immunohistochemically detected lymph node micrometastasis recently has been evaluated in various tumors. However, few reports have addressed this issue with regard to gallbladder carcinoma. METHODS: A total of 1476 lymph nodes from 67 patients with gallbladder carcinoma (pN0, n = 40; pN1, n = 27) who underwent curative resection were immunostained with monoclonal antibody against cytokeratins 8 and 18. The results were correlated with clinical and pathologic features and with patient survival. RESULTS: Lymph node micrometastases were detected immunohistochemically in 23 (34.3%) of the 67 patients and in 37 (2.5%) of the 1476 nodes examined. Of the 37 nodal micrometastases, 21 (56.8%) were single-cell events, and the remaining 16 were clusters. Five micrometastases were detected in the paraaortic nodes. Clinicopathologic features showed no significant associations with the presence of lymph node micrometastases. Survival was worse in the 27 patients with pN1 disease than in the 40 with pN0 disease (5-year survival; 22.2% vs. 52.6%, P = 0.0038). Similarly, survival was worse in the 23 patients with micrometastasis than in the 44 without micrometastasis (5-year survival; 17.4% vs. 52.7%, P = 0.0027). Twenty-eight patients without any lymph node involvement had the best prognosis, whereas survival for the 11 patients with both types of metastasis was dismal. The grade of micrometastasis (single-cell or cluster) had no effect on survival. The Cox proportional hazard model identified perineural invasion, lymph node micrometastasis, and microscopic venous invasion as significant independent prognostic factors. CONCLUSIONS: Lymph node micrometastasis has a significant survival impact in patients with pN0 or pN1 gallbladder carcinoma who underwent macroscopically curative resection. Extensive lymph node sectioning with keratin immunostaining is recommended for accurate prognostic evaluation for patients with gallbladder carcinoma.