Intrahepatic Cholangiocarcinoma: Prognostic Factors After Surgical Resection

Background  Intrahepatic cholangiocarcinoma (ICC) is the second most common primary liver tumor. The resectability rate is low because at the time of diagnosis this disease is frequently beyond the limits of surgical therapy. Curative resection (R0) is the most effective treatment and the only therapy associated with prolonged disease-free survival. Based on the gross appearance of the tumor the Liver Cancer Study Group of Japan (LCSGJ) defined three types: mass-forming type (MF), periductal infiltrating type (PI), intraductal growth (IG) type. The prognostic significance of gross type has been demonstrated in Eastern countries, but this issue has not been clarified in Western countries. The aim of this study was to identify the prognostic factors for survival in a group of patients submitted to surgical resection for ICC. Methods  Between 1990 and 2007 a total of 81 consecutive patients with ICC were submitted to surgery. Patients with peritoneal carcinomatosis, extensive vascular involvement, or multiple intrahepatic metastases were excluded from surgical resection. Tumors were classified according to TMN stage (6th edition, 2002) and LCSGJ gross type classification. Tumor gross appearance on the cut surface was categorized into the following types according to the classification proposed by the Liver Cancer Study Group of Japan: MF, PI, or IG type. Results  During the study period 52 patients were submitted to surgical resection with curative intent, whereas in 29 patients surgery was limited to explorative laparotomy. Curative resection (R0) was achieved in 43 patients (83%); and a major hepatic resection was performed in 63% (33/52) of the patients. Extrahepatic bile duct resection was carried out in 36% (19/52) of cases. According to the LCSGJ classification, the MF type was present in 34 patients (65%), the MF + PI type in 13 (25%), the PI type in 3 (6%), and the IG type in 2 (4%). Overall median survival time was 40 months, with a 1-, 3-, and 5-year actuarial survival rates of 83%, 50%, 20%, respectively. Survival was significantly related to the macroscopic gross type, with a median survival of 50 months for patients with the MF type, 19 months for the MF + PI type, 15 months for the PI type, and 17 months for the IG type. At univariate analysis, the macroscopic gross appearance of the tumor, the presence of lymph node metastasis, involvement of extrahepatic bile ducts, the presence of macroscopic vascular invasion, and positive resection margins were significant related to survival. At multivariate analysis, macroscopic vascular invasion and lymph nodes metastases were significant related to survival with hazard ratios of 4.11 and 2.79, respectively. Further statistical analyses were carried out to identify the relation between macroscopic gross type and prognosis. We identified that the MF + PI type tumors were significantly associated with negative prognostic factors, such as the involvement of extrahepatic bile ducts, the presence of lymph nodes metastases, the presence of macroscopic vascular invasion, the presence of perineural invasion, and higher T stage. Conclusions  Curative resection of ICC is the only therapy that can achieve long-term survival. The best results were observed in patients who underwent R0 resection for MF tumors without lymph node metastases or vascular invasion. Important predictive factors related to poor survival are MF + PI macroscopic tumor type, lymph node metastases, and vascular invasion. In these patients, other therapeutic approaches (i.e., adjuvant or neoadjuvant therapy) should be evaluated to improve results.     

Surgical Outcome and Prognostic Factors in Intrahepatic Cholangiocarcinoma

BACKGROUND: The clinicopathologic features and surgical outcome of intrahepatic cholangiocarcinoma are not fully understood. METHODS: Fifty-six consecutive patients with intrahepatic cholangiocarcinoma who underwent surgical resection at the National Cancer Center Hospital East between October 1992 and July 2007 were retrospectively analyzed. Intrahepatic cholangiocarcinomas were subdivided into solitary tumors and tumors with intrahepatic metastasis. RESULTS: Complete tumor removal (R0 resection) was performed in 42 patients (75%). The 5-year survival rate for patients with intrahepatic cholangiocarcinoma (n = 56), patients with a solitary tumor (n = 46), and patients with intrahepatic metastasis (n = 10) were 32, 38, and 0%, respectively. There was a significant difference in survival between patients with a solitary tumor and those with intrahepatic metastasis (p < 0.0001). The 5-year survival rate for patients with stage I (n = 3), II (n = 9), III (n = 15), and IV disease (n = 26) was 100, 67, 37, and 0%, respectively. There was a significant difference in survival between stage I and stage IV (p = 0.011), between stage II and stage IV (p = 0.0002), and between stage III and stage IV (p = 0.0015). The most frequent site of recurrence was the liver. Univariate analysis showed that intrahepatic metastasis, portal vein invasion, hepatic duct invasion, lymph node metastasis, perineural invasion, and positive surgical margin (R1) were significantly associated with poor survival. Multivariate analysis confirmed that intrahepatic metastasis was a significant and independent prognostic indicator after surgical resection for intrahepatic cholangiocarcinoma (p = 0.001). No patient with intrahepatic metastasis survived more than 10 months in this study. CONCLUSIONS: Intrahepatic metastasis was the strongest predictor of poor survival in intrahepatic cholangiocarcinoma.     

Surgical Resection for Recurrent Intrahepatic Cholangiocarcinoma

World Journal of Surgery - Although after R0 resection of intrahepatic cholangiocarcinoma (ICC) recurrence is frequent, most guidelines do not address strategies for this. The aim of this study was...     

Surgical Resection and Prognostic Analysis of 142 Cases of Hilar Cholangiocarcinoma

Surgical resection for hilar cholangiocarcinoma is the only curative option, but low resectability rate and poor survival outcomes remain a challenge. This study was to assess the surgical resection for hilar cholangiocarcinoma and analyze the prognostic factors influencing postoperative survival. One hundred forty-two patients with hilar cholangiocarcinoma who underwent surgical resection between January 2006 and December 2014 were analyzed retrospectively based on clinicopathological and demographic data. Univariate and multivariate analysis against outcome were employed to identify potential factors affecting prognosis. Ninety-five patients were performed with R0 resection with median survival time of 22 months; whereas, 47 patients underwent non-R0 resection (R1 = 20, R2 = 27) with that of 10 months. Of these 95 patients, 19 underwent concomitant with vascular resection and reconstruction and 2 patients underwent pancreaticoduodenectomy. 64.8% patients (n = 92) underwent combined with hepatectomy. The one-year, three-year, and five-year survival rates after R0 resection were 76.3, 27.8, 11.3%, respectively, which was significantly better than that after non-curative resection (P = 0.000). Multivariate analysis revealed that non-curative resection (RR: 2.414, 95% CI 1.586–3.676, P = 0.000), pathological differentiation (P = 0.015) and preoperative serum total bilirubin above 10 mg/dL (RR: 1.844, 95% CI 1.235–2.752, P = 0.003) were independent prognostic factors. Aggressive curative resection remains to be the optimal option for hilar cholangiocarcinoma. Non-curative resection, pathological differentiation, and preoperative serum total bilirubin above 10 mg/ dL were associated with dismal prognosis.     

Prognostic Value of Cirrhosis for Intrahepatic Cholangiocarcinoma After Surgical Treatment

Background  

The surgical outcome and prognostic factors of intrahepatic cholangiocarcinoma are not fully understood. This study aimed to establish the clinical significance of cirrhosis for prognosis in patients with intrahepatic cholangiocarcinoma after surgery.     

肝门部胆管癌切除术不同手术方式的选择

目的探讨肝门部胆管癌切除术不同手术方式的选择。方法近五年来我院共收治肝门部胆管癌25例，其中手术切除17例，切除率为68％，参照Bismuth－Corlette分型选择不同的手术方式，包括Ⅰ型（肝总管癌）5例，Ⅱ型（汇合部肝管癌）3例，Ⅲa型（肝总管、右肝管癌）4例，Ⅲb型（肝总管、左肝管癌）4例，Ⅳ型（左或右肝管癌侵犯二级以上肝管）1例。结果术后发生胆漏5例，均于手术后5—30d自愈；发生膈下感染2例，经引流治愈；术后出血2例，其中1例因出现肝衰、DIC死亡，1N经用止血药、输血后痊愈。目前存活7例，平均生存25（12～42）个月。全组病例1、2、3年生存率分别为75．0％（12／16）、31．2％（5／16）、25．0％（4／16）。结论肝门部胆管痛手术根治性切除府根据肿瘤的分到洗柽不同的术式．     

Survival Analysis of Intrahepatic Cholangiocarcinoma After Resection

Background  

Intrahepatic cholangiocarcinoma (ICC) is the second most common primary hepatic malignancy, but the studies for the outcome after resection of ICC are rare. The aim of this study was to elucidate outcomes and prognostic factors of ICC in patients undergoing hepatic resection.     

Current Surgical Management of Hilar and Intrahepatic Cholangiocarcinoma: The Role of Resection and Orthotopic Liver Transplantation

Cholangiocarcinoma (CCA) is a rare but devastating malignancy that presents late, is notoriously difficult to diagnose, and is associated with a high mortality. Surgical resection is the only chance for cure or long-term survival. The treatment of CCA has remained challenging because of the lack of effective adjuvant therapy, aggressive nature of the disease, and critical location of the tumor in close proximity to vital structures such as the hepatic artery and the portal vein. Moreover, the operative approach is dictated by the location of the tumor and the presence of underlying liver disease. During the past 4 decades, the operative management of CCA has evolved from a treatment modality that primarily aimed at palliation to curative intent with an aggressive surgical approach to R0 resection and total hepatectomy followed by orthotopic liver transplantation.     

Resection of Hilar Cholangiocarcinoma

Objective: Morbidity and mortality involved in the resection of hilar cholangiocarcinoma were reviewed retrospectively. The clinicopathologic and laboratory parameters that might influence the patient''s survival also were re-evaluated.Summary Background Data: Although much progress has been made in the diagnosis and management of hilar cholangiocarcinoma, long-term outlook for most patients remains poor. Surgical resection is usually prohibited because of its local invasiveness, and most patients can only be managed by palliative drainage. Recently, many surgeons have adopted a more aggressive resection with varying degrees of success. Several prognostic factors in bile duct carcinoma have been proposed; however, no reports have specifically focused on resected hilar cholangiocarcinoma and its prognostic survival factors using multivariate analysis.Methods: The clinical records and pathologic slides of 49 cases with resected hilar cholangiocarcinoma were reviewed retrospectively. Twenty clinical and laboratory parameters were evaluated for their correlation with postoperative morbidity and mortality, whereas 31 variables were evaluated for their significance with postoperative survival. Variables showing statistical significance in the first univariate analysis were included in the following multivariate analysis using stepwise logistic regression test for factors affecting morbidity and mortality and Cox stepwise proportional hazard model for factors influencing survival.Results: There were 5 in-hospital deaths, and the cumulative 5-year survival rate in 44 patients who survived was 14.9%, with a median survival of 14.0 months. Multivariate analysis disclosed that coexistent hepatolithiasis and lower serum asparate aminotransferase levels (90 U/L) had a significant low incidence of postoperative morbidity, whereas a serum albumin of less than 3 g/dL was the only significant factor affecting mortality. Regarding survival, univariate analysis identified eight significant factors: 1) total bilirubin 10 mg/dL, 2) curative resection, 3) histologic type, 4) perineural invasion, 5) liver invasion, 6) depth of cancer invasion, 7) positive proximal resected margin, and 8) positive surgical margin. However, multivariate analysis disclosed total bilirubin ≥ 10 mg/dL, curative resection, and histologic type as the three most significant independent variables.Conclusions: Surgical resection provides the best survival for bilar cholangiocarcinoma. An adequate nutritional support to increase serum albumin over 3g/dL is the most important factor to decrease postoperative mortality. Moreover, preoperative biliary drainage to decrease jaundice and a curative resection with adequate surgical margin are recommended if longer survival is anticipated. Patients with well differentiated adenocarcinoma seem to survive longer compared to those with moderately or poorly differentiated tumors.     

肝门部胆管癌外科治疗的几个问题

肝门部胆管癌是指发生于胆囊管开口以上的肝总管和左右肝管的黏膜上皮癌,亦称为高位胆管癌或Klatskin肿瘤。根治性切除是目前患者获得长期生存的最有效手段。然而,手术复杂、切除率低是长期以来困扰外科界的一大难题。随着近年来肝脏切除尤其是精准肝脏切除技术的出现和提高,越来越多的中心对60%以上的肝门部肿瘤可以达     

Resection for Hilar Cholangiocarcinoma: Analysis of Prognostic Factors and the Impact of Systemic Inflammation on Long-term Outcome

Introduction

Resection for hilar cholangiocarcinoma is the single hope for long-term survival.

Methods

Ninety patients underwent curative intent surgery for hilar cholangiocarcinoma between 1996 and 2012. The potential prognostic factors were assessed by univariate (Kaplan–Meier curves and log-rank test) and multivariate analyses (Cox proportional hazards model).

Results

The median overall and disease-free survivals were 26 and 17 months, respectively. The multivariate analysis identified R0 resection (HR?=?0.03, 95 % CI 0–0.19, p?<?0.001), caudate lobe invasion (HR?=?6.33, 95 % CI 1.31–30.46, p?=?0.021), adjuvant gemcitabine-based chemotherapy (HR?=?0.38, 95 % CI 0.15–0.94, p?=?0.037), and the neutrophil-to-lymphocyte ratio (HR?=?0.78, 95 % CI 0.62–0.98, p?=?0.036) as independent prognostic factors for disease-free survival. The independent prognostic factors for overall survival were R0 resection (HR?=?0.03, 95 % CI 0–0.22, p?<?0.001), caudate lobe invasion (HR?=?11.75, 95 % CI 1.65–83.33, p?=?0.014), and adjuvant gemcitabine-based chemotherapy (HR?=?0.19, 95 % CI 0.06–0.56, p?=?0.003).

Conclusions

The negative resection margin represents the most important prognostic factor. Adjuvant gemcitabine-based chemotherapy appears to benefit survival. The neutrophil-to-lymphocyte ratio may potentially be used to stratify patients for future clinical trials.     

Surgical Management and Prognostic Factors of Hilar Cholangiocarcinoma: Experience with 115 Cases in China

Background  Hilar cholangiocarcinoma (or Klatskin tumor) is a rare condition, accounting for less than 1% of all cancers. This study was designed to assess the surgical and postsurgical management of affected patients, including the postoperative chemotherapy, and an analysis to determine prognostic factors for postoperative morbidity and mortality. Methods  A retrospective review of 115 consecutive cases treated with resection between January 1990 and January 2004 at a single university medical center in southern China was carried out. Clinicopathological data were analyzed and univariate and multivariate analyses against outcome was employed to determine the prognostic significance of a variety of factors including excision margin characteristics, status of metastases, tumor type, histological differentiation, lymph node characteristics, and postoperative therapy. Results  Median survival time of patients treated with resection and anastomosis with postoperative chemotherapy was 41 months compared with 36 months for patients who did not receive chemotherapy postoperatively. Factors correlating with shorter survival were positive excision margin, metastasis, adenoacanthoma-type tumor, poor or unknown histological differentiation, and positive lymph nodes. In addition, postoperative chemotherapy improved survival. Patients treated with chemotherapy postoperatively had a survival of 43.15 ± 21.02 months, which was significantly longer than the survival of patients who received no postoperatively chemotherapy (36.97 ± 15.99 months; P < 0.05). Conclusion  Resection with anastomosis and postoperative chemotherapy results in longer survival time compared with no chemotherapy postoperatively. Positive excision margins, metastases, adenoacanthoma-type tumor, poor or unknown histological differentiation, and positive lymph nodes correlate with shorter survival.     

Surgical Resection of Hilar Cholangiocarcinoma: Analysis of Survival and Postoperative Complications

Background Surgery is the only potentially curative treatment for hilar bile duct cancer. This study sought to evaluate the efficacy and feasibility of surgical management of hilar bile duct carcinoma, including radical hepatectomy, at a single institution. Methods We performed a retrospective review of 49 consecutive patients who underwent surgery at our hospital between 1990 and 2003. Results Altogether, 44 of 49 patients underwent radical hepatectomy combined with caudate lobectomy and lymphadenectomy. One and four patients underwent partial hepatectomy or bile duct resection, respectively. No patients underwent preoperative portal vein embolization. The 5-year survival rate was 39.7%, with a median survival time of 3.75 years. The postoperative morbidity and mortality rates were 46.8% and 2.0%, respectively. Cox’s proportional hazard model revealed that lymph node status and the residual tumor factor were independent prognostic factors. Multivariate analysis revealed that preoperative hyperbilirubinemia, postoperative complications, and extended surgical procedures were independently associated with postoperative hyperbilirubinemia. After potentially curative resection, 39.4% of patients suffered from disease recurrence. In 60% of the total cases, the sites of recurrence were distant metastases. Conclusion Surgery, including radical hepatectomy combined with caudate lobectomy and lymph node dissection, is a feasible, effective treatment for hilar bile duct cancer.     

Recurrence and Prognostic Factors of Ampullary Carcinoma after Radical Resection: Comparison with Distal Extrahepatic Cholangiocarcinoma

Background Ampullary carcinoma is often considered to have a better prognosis than distal extrahepatic cholangiocarcinoma. However, studies that directly compare the recurrence and histopathological features between the two groups are rare. Methods Clinicopathologic factors and the long-term outcomes of 163 patients with ampullary carcinoma after radical resection were retrospectively evaluated and compared with those of 91 patients with distal extrahepatic cholangiocarcinoma. Results Among the 163 ampullary carcinomas, T1 stage, well-differentiated tumors and perineural invasion were 45 (28%), 73 (45%), and 23 (14%), respectively, whereas, only five (6%) were T1 stage, 15 (17%) were well differentiated, and 63 (69%) showed perineural invasion (p < 0.001, for all) in distal extrahepatic cholangiocarcinomas. More patients with distal extrahepatic cholangiocarcinoma had liver metastasis than ampullary carcinoma (24% vs. 10%, p = 0.004). Multivariate analysis identified venous invasion and perineural invasion as risk factors for recurrence of ampullary carcinoma after radical resection. Only lymph node involvement was identified as a risk factor for recurrence of distal extrahepatic cholangiocarcinoma by multivariate analysis. Overall five-year survival of patients with ampullary cancer was higher than that of patients with distal extrahepatic cholangiocarcinoma (68% vs. 54%; p = 0.033). In patients without lymph node metastasis, a significant difference in survival was also observed between the two groups (p = 0.049). Conclusion Earlier diagnosis and the less frequent occurrence of pathological factors associated with tumor invasiveness in ampullary carcinoma than in distal extrahepatic cholangiocarcinoma may explain its association with a better prognosis.     

肝门部胆管癌的手术治疗

目的探讨肝门部胆管癌2种手术方法的疗效。方法回顾性分析我院1998～2006年期间收治的37例肝门部胆管癌患者的临床资料。结果37例患者中13例行根治性手术切除,其1年与3年的生存率分别为100%（13/13）和76.92%（10/13）,中位生存期为22.43个月;另24例行姑息性手术（均为肝内胆管内引流术）,其1年与3年生存率分别为54.55%（12/22）和9.09%（2/22）,中位生存期为15.42个月。结论根治性手术是治疗肝门部胆管癌的主要手段;姑息性手术,如合理的肝内胆管内引流能改善患者的生存质量。     

92例肝门部胆管癌的外科治疗分析

目的：探讨肝门部胆管癌的外科手术治疗方法及其疗效。方法：对舞钢市人民医院及郑州大学第一附属医院收治的92例肝门部胆管患者的病历资料及随访结果进行分析。92例患者中手术治疗79例,包括根治性性切除28例、姑息性切除18例、内引流或外引流术33例。另有7例行PTCD置管,6例放弃治疗。结果：手术病死率1.1%,根治性切除率35.4%,根治性切除的患者1、3和5年存活率分别为78.6%、50%和28.6%。姑息性切除的切除率22.8%,姑息性切除的患者1、3和5年存活率分别为55.6%、22.2%和11.1%。根治性切除和姑息性切除两组患者生存期差异有统计学意义（P〈0.05）。手术切除的生存率则明显高于各种引流术和介入手术,差异有统计学意义（P〈0.05）。结论：根治性手术目前仍是肝门部胆管癌的主要治疗方式,肝门部胆管癌的预后与组织学分化程度、手术治疗方式等多种因素相关。     

Identification of Risk and Prognostic Factors for Patients with Clonorchiasis-Associated Intrahepatic Cholangiocarcinoma

Background

Intrahepatic cholangiocarcinoma caused by clonorchiasis (CICC) has a poor prognosis, and there have been insufficient studies regarding risk and prognostic factors. We aimed to identify CICC-associated factors.

Methods

A retrospective analysis of 127 eligible patients with CICC was performed with 254 clonorchiasis cases used as matched controls to identify risk factors for CICC. The main outcomes analyzed included overall survival (OS) and disease-free survival (DFS).

Results

Out of 127 surgeries, R0 resection was performed in 61 patients, R1 in 32 patients, and R2 in 22 patients; nonresection surgery was performed in 12 patients. Median OS for the entire cohort was 29.5 months. Median OS and DFS for 61 patients with R0 resection were 52.4 months and 41.5 months, respectively. We found independent risk factors for CICC were duration of raw fish consumption of ≥28 years (p < 0.001) and hepatitis B virus infection (p = 0.040). R0 resection (p < 0.001), well or moderately differentiated tumor (p = 0.019), and stage I to II tumor (p < 0.001) predicted improved OS for CICC. Serum carcinoembryonic antigen level of ≤5 ng/ml (p = 0.029) and stage I to II tumor (p < 0.001) predicted improved DFS.

Conclusions

Duration of raw fish consumption ≥28 years and hepatitis B virus infection were significant risk factors for CICC in patients with clonorchiasis. For patients with CICC, curative resection is an effective treatment. Higher tumor differentiation and earlier American Joint Committee on Cancer stage predicted good prognosis. Serum carcinoembryonic antigen level was found to predict the possibility of recurrence after curative resection.     

Prognostic Factors and Optimal Treatment Strategy for Intrahepatic Nodular Recurrence After Curative Resection of Hepatocellular Carcinoma

Background Intrahepatic recurrence is a major problem after curative resection of hepatocellular carcinoma. However, the most effective treatments for patients with intrahepatic recurrence still remain unclear. In addition, the selection of various treatment modalities such as repeat resection, local ablation therapy, and transarterial chemoembolization is only applicable to patients with intrahepatic nodular recurrence. Methods Of 353 patients who underwent curative resection, 97 patients with intrahepatic nodular recurrence were retrospectively studied. The prognostic factors for survival after recurrence and treatment modalities were analyzed. The patients were divided into two groups, a control group and a progression group, according to their response to initial treatment for recurrent tumors. Results The 1-, 3-, and 5-year overall survival rates after recurrence in patients with intrahepatic nodular recurrence were 91.0%, 71.0%, and 37.5%, respectively. Multivariate analysis revealed that early recurrence (≤12 months), Child-Pugh class B or C at diagnosis of recurrence, and serum albumin level of ≤3.5 g/dL at diagnosis of recurrence were poor prognostic factors for survival after recurrence. With regard to the response to the initial treatment, time to recurrence of ≤12 months was found to be the only statistically significant risk factor for progression of disease in multivariate analysis. Conclusions Time to recurrence, which usually corresponds with the cellular origin of recurrence, seems to be more important when determining the prognosis of patients with recurrent disease and treatment response than treatment modality. Therefore, different treatment methods should be selected according to the time to recurrence of intrahepatic nodular recurrence.     

Surgical Outcomes and Predicting Factors of Curative Resection in Patients with Hilar Cholangiocarcinoma: 10-Year Single-Institution Experience

Background

The surgical resection of hilar cholangiocarcinoma is extremely challenging because the tumor is closely related with the complicated hilar structures. We investigated to identify the outcomes for patients who underwent surgical resection and to identify the parameters that influenced radical resection.

Methods

From January 2000 to December 2009, 105 patients underwent surgical resection for hilar cholangiocarcinoma. The clinicopathological parameters and surgical outcomes were retrospectively analyzed.

Results

There were 15 operative mortalities (14.3%). Seventy-four patients underwent curative resection (70.5%). The median overall survival time for R0, R1, and R2 were 58, 28, and 19?months, respectively. Caudate lobectomy (p?=?0.044; odds ratio [OR], 4.386) and perineural invasion (p?=?0.01; OR, 0.062) were correlated with curative resection. Total bilirubin levels of more than 3?g/dl just before the operation (p?=?0.042; hazard ratio [HR], 2.109) and extent of resection (R1 and 2 vs R0; p?=?0.05; HR, 2.309) were selected as significantly negative factors affecting overall survival on the multivariate analysis.

Conclusions

Caudate lobectomy and neurectomy may be thought of as adjustable territories by the surgeon??s efforts to achieve curative resection. R0 resection achieved through those efforts and liver optimization using preoperative biliary drainage may offer the patients a chance of cure.     

肝门部胆管癌的分型及外科治疗

肝门部胆管癌（hilar cholangiocarcinoma,HCCA）早期诊断困难,根治性切除是唯一可能治愈该病的治疗方式,但其手术切除难度大,预后差。近年来,随着外科手术技术和现代影像医学的不断进步,尤其是近10年来“计划性肝切除”和“第四肝门”理念逐渐由临床实践中提炼出来,并在临床实践中得到持续应用,