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Is cholecystectomy a reasonable treatment option for simple gallbladder polyps larger than 10 mm?

World Journal of Gastroenterology 2015年第14期21卷 4248-4254页

作者： Hye Yon Park Se Hoon Oh Kwang Hyuck lee Jong kyun lee kyu taek lee Division of Gastroenterology Department of Internal MedicineSamsung medical centerSungkyunkwan University School of Medicine

AIM: To determine the relevance of the 10-mm size criterion of the generally accepted surgical indication for gallbladder polyps(GBPs).METHODS: We collected data of patients who were confirmed to have GBPs through cholecystectomy at Samsung Medical Center between January 1997 andDecember *** the patients who underwent cholecystectomy for GBP, those with a definite evidence for malignancy such as adjacent organ invasion, metastasis on preoperative imaging studies, polyp larger than 20 mm, absence of preoperative imaging study results, and patients having gallstones were *** retrospectively collected and analyzed information on patient's clinical characteristics, symptoms, ultrasonographic findings, and blood laboratory ***: A total of 836 patients who had undergone cholecystectomy were retrospectively *** hundred eighty patients(93%) had benign polyps, whereas 56 patients(7%) had malignant *** the 56 patients with malignancy, 4 patients(7%) had borderline GBP(10-12 mm) and a patient had small GBP(< 10 mm) with T2 *** conducted an ROC curve analysis to verify the 10-mm size criteria(AUC = 0.887, SD = 0.21, P < 0.001).In the ROC curve for polyp size and malignancy, sensitivity and specificity of the 10-mm size criterion was 98.2% and 19.6%, *** specificity of the 11-mm and 12-mm size criteria was 44.6% and 56%, respectively, whereas the sensitivity of these two size criteria was *** defined the GBPs of 10 to 12 mm as a borderline-sized GBP, which were found in 411 patients(49%).In this group, there was a significant difference in age between patients with benign and malignant GBPs(47 years vs 60 years, P < 0.05).CONCLUSION: GBPs larger than 13 mm need immediate excision whereas for borderline-sized GBPs detected in young patients, careful medical observation can be a rational decision.

关键词： Gallbladder polyp Gallbladder cancer Cholecystecto

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Bleeding after endoscopic papillectomy and its risk factors:A single center experience of 196 cases

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Hepatobiliary & Pancreatic Diseases International 2024年第6期23卷 613-619页

作者： Jin Ho Choi Won Chul Kim Joo kyung Park Jong kyun lee kyu taek lee Kwang Hyuck lee Department of Medicine Division of GastroenterologySamsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351Korea

Background:Endoscopic papillectomy(EP)is an effective method to remove an ampulla of Vater(AoV)adenoma with minimal *** reviewed the clinical outcomes and prognosis of patients undergoing EP,including tumor recurrence and adverse ***:A total of 196 patients who underwent EP from January 2004 to December 2017 were *** information was collected through electronic medical records,and risk factors to predict postprocedural bleeding were analyzed using a multivariate logistic regression ***:A total of 93.9%patients(184/196)underwent complete *** the follow-up period,14.7%patients(27/184)experienced tumor recurrence,and two of seven surgically resected tumors were malignant.A total of 45.4%patients(89/196)experienced adverse events related to *** bleeding occurred in 16.3%of the patients(32/196),and they were all successfully treated with endoscopic hemostasis and conservative *** most frequent site of delayed bleeding was the distal end of the papillary orifice,and 56.3%(18/32)patients of delayed bleeding were classified as having mild severity,the others had moderate *** adenomatous polyposis(FAP)[odds ratio(OR)=3.80,95%confidence interval(CI):1.01-14.29;Pleeding was increased in patients with FAP syndrome and male patients,and post-EP bleeding occurred most commonly in the distal part of the AoV.

关键词： Ampullary neoplasm Endoscopic papillectomy Post-procedural bleeding Risk factor

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Attenuated FOLFIRINOX in the salvage treatment of gemcitabine-refractory advanced pancreatic cancer: a phase II study

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Cancer Communications 2018年第1期38卷 344-351页

作者： Jung Hoon Kim Sang-Cheol lee Sung Yong Oh Seo-Young Song Namsu lee Eun Mi Nam Soonil lee In Gyu Hwang Hyo Rak lee kyu taek lee Sang-Byung Bae Han Jo Kim Joung Soon Jang Do Hyoung Lim Hyun Woo lee Seok Yun Kang Jung Hun Kang Department of Internal Medicine Institute of Health SciencesGyeongsang National University15 Jinju-daero 816beon-gilJinju 52727Republic of Korea Divsion of Hematology and Oncology Department of Internal MedicineSoonchunhyang University Hospital CheonanCheonan 31151Republic of Korea Department of Internal Medicine Dong-A University HospitalBusan 49201Republic of Korea Department of Internal Medicine Kangwon National University School of MedicineChuncheon 24289Republic of Korea Divsion of Hematology and Oncology Department of Internal MedicineSoonchunhyang University Hospital SeoulSeoul 04401Republic of Korea Department of Internal Medicine Ewha Womans UniversityCollege of MedicineSeoul 07985Republic of Korea Department of Internal Medicine Dankook University HospitalCheonan 31116Republic of Korea Department of Internal Medicine Chung-Ang UniversityCollege of MedicineSeoul 06973Republic of Korea Division of Hematology and Medical Oncology Department of Internal MedicineKorea Cancer HospitalSeoul 01812Republic of Korea Department of Hematology-Oncology Ajou University HospitalSuwon 16499Republic of Korea

Background:Combination therapy with oxaliplatin,irinotecan,fluorouracil,and leucovorin(FOLFIRINOX)chemotherapy drastically improves survival of advanced pancreatic cancer ***,the efficacy of FOLFIRINOX as a second-line treatment after gemcitabine failure has not been tested *** investigated the feasibility and safety of attenuated FOLFIRINOX in patients with gemcitabine-refractory advanced pancreatic ***:A multicenter phase II prospective open-label,single-arm study was conducted at 14 *** with histologically proven invasive ductal pancreatic adenocarcinoma,a measurable or evaluable lesion,Eastern Cooperative Oncology Group performance status 0 or 1,adequate organ function,and aged 19 years or older were *** FOLFIRINOX consisted of oxaliplatin 65 mg/m2,irinotecan 135 mg/m2,and leucovorin 400 mg/m2 injected intravenously on day 1 and 5-fluorouracil 2000 mg/m2 continuously infused intravenously over 46 h on days 1-2,repeated every 2 *** primary endpoint was progression-free survival from the initiation of *** endpoints were the objective response rate,disease control rate,overall survival,safety,and *** estimated overall survival and progression-free survival using the Kaplan-Meier ***:We enrolled 39 patients from 14 *** objective response rate was 10.3%,while the disease control rate was 64.1%.The 6-month and 1-year overall survival rates were 59.0%and 15.4%,*** progression-free survival and overall survival were 3.8 months(95%confidence interval[CI]1.5-6.0 months)and 8.5 months(95%CI 5.6-11.4 months),*** 3 or 4 adverse events were neutropenia(41.0%),nausea(10.3%),anorexia(10.3%),anemia(7.7%),mucositis(7.7%),pneumonia/pleural effusion(5.1%),and fatigue(5.1%).One treatment-related death attributable to septic shock ***:Attenuated FOLFIRINOX may be promising as a second-line therapy for gemcitabin

关键词： Attenuated FOLFIRINOX Second-line Pancreatic cancer Gemcitabine

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Predictive factors associated with malignancy of intraductal papillary mucinous pancreatic neoplasms

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World Journal of Gastroenterology 2010年第42期16卷 5353-5358页

作者： Jin Hee lee kyu taek lee Jongwook Park Sun Youn Bae Kwang Hyuck lee Jong kyun lee Kee-taek Jang Jin Seok Heo Seong Ho Choi Dong Wook Choi Jong Chul Rhee Department of Medicine Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 135710South Korea Department of Pathology Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 135710South Korea Department of Surgery Samsung Medical CenterSungkyunkwan University School of MedicineSeoul 135710South Korea

AIM:To identify preoperative predictive factors associated with malignancy of intraductal papillary mucinous neoplasms(IPMNs) of the ***:Between April 1995 and April 2010,129 patients underwent surgical resection for IPMNs at our institute and had confirmed pathologic *** medical records were retrospectively reviewed and immunohistochemical staining for mucin(MUC) in pancreatic tissues was ***:Univariate analysis showed that the following five variables were closely associated with malignant IPMNs preoperatively:absence of extrapancreatic malignancy;symptoms;tumor size > 4 cm;main pancreaticduct(MPD) size > 7 mm;and lymph node enlargement on preoperative computed tomography(CT).Multivariate analysis revealed that the following two factors were significantly associated with malignant IPMNs preoperatively:MPD size > 7 mm [odds ratio(OR) = 2.50];and lymph node enlargement on preoperative CT(OR = 3.57).No significant differences in the expression of MUC1,MUC2 and MUC5AC were observed between benign and malignant ***:MPD size > 7 mm and preoperative lymph node enlargement on CT are useful predictive factors associated with malignancy of IPMNs.

关键词： Intraductal papillary mucinous neoplasms Malignancy Predictive factors Pancreatic neoplasms

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Hepatobiliary scintigraphy for detecting biliary strictures after living donor liver transplantation

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World Journal of Gastroenterology 2011年第21期17卷 2626-2631页

作者： Yu Jin Kim kyu taek lee Young Cheol Jo Kwang Hyuck lee Jong kyun lee Jae-Won Joh Choon Hyuck David Kwon Department of Medicine Samsung Medical CenterSungkyunkwan University School of Medicine Department of Surgery Samsung Medical CenterSungkyunkwan University School of Medicine

AIM:To investigate the diagnostic accuracy of hepatobiliary scintigraphy(HBS) in detecting biliary strictures in living donor liver transplantation(LDLT) ***:We retrospectively reviewed 104 adult LDLT recipients of the right hepatic lobe with duct-toduct anastomosis,who underwent HBS and *** HBS results were categorized as normal,parenchymal dysfunction,biliary obstruction,or bile leakage without *** presence of biliary strictures was determined by percutaneous cholangiography or endoscopic retrograde cholangiopancreatography(ERCP).RESULTS:In 89 patients with biliary strictures,HBS showed biliary obstruction in 50 and no obstruction in 39,for a sensitivity of 56.2%.Of 15 patients with no biliary strictures,HBS showed no obstruction in 11,for a specificity of 73.3%.The positive predictive value(PPV) was 92.6%(50/54) and the negative predictive value(NPV) was 22%(11/50).We also analyzed the diagnostic accuracy of the change in bile duct *** sensitivity,NPV,specificity,and PPV were 65.2%,27.9%,80% and 95%,***:The absence of biliary obstruction on HBS is not ***,when post-LDLT biliary strictures are suspected,early ERCP may be considered.

关键词： Living donor liver transplantation Tc99m mebrofenin Radionucleotide imaging Hepatobiliary scintigraphy Biliary stricture

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Prevalence of clonorchiasis in patients with gastrointestinal disease: A Korean nationwide multicenter survey

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World Journal of Gastroenterology 2009年第1期15卷 86-94页

作者： Ho Gak Kim Jimin Han Myung-Hwan Kim kyu Hyun Cho Im Hee Shin Gwang Ha Kim Jae Seon Kim Jin Bong Kim Tae Nyeun Kim Tae Hyeon Kim Tae Hyo Kim Jae Woo Kim Ji Kon Ryu Young-Soo Moon Jong Ho Moon Sung Jae Park Chan Guk Park Sung-Jo Bang Chang Heon Yang Kyo-Sang Yoo Byung Moo Yoo kyu taek lee Dong Ki lee Byung Seok lee Sang Soo lee Seung Ok lee Woo Jin lee Chang Min Cho Young-Eun Joo Gab Jin Cheon Young Woo Choi Jae Bok Chung Yong Bum Yoon Department of Internal Medicine Catholic University of Daegu School of Medicine Daegu 705-718 South Korea Department of Internal Medicine Asan Medical Center University of Ulsan College of Medicine Seoul 138-736 South Korea Department of Medical Statistics Catholic University of Daegu School of Medicine Daegu 705-718 South Korea Department of Internal Medicine Pusan National University School of Medicine Busan 602-739 South Korea Department of Internal Medicine Korea University College of Medicine Seoul 136-705 South Korea Department of Internal Medicine Hallym University College of Medicine Chuncheon 200-704 South Korea Department of Internal Medicine Yeungnam University College of Medicine Daegu 705-717 South Korea Department of Internal Medicine Wonkwang University College of Medicine Iksan Jeonbuk 570-711 South Korea Department of Internal Medicine Gyeongsang National University School of Medicine Jinju Gyeongnam 660-702 South Korea Department of Internal Medicine Yonsei University Wonju College of Medicine Wonju Gangwon 220-701 South Korea Department of Internal Medicine Seoul National University College of Medicine Seoul 110-799 South Korea Department of Internal Medicine lnje University College of Medicine Seoul 139-713 South Korea Department of Internal Medicine Soonchunhyang University College of Medicine Bucheon Gyunggi 420-767 South Korea Department of Internal Medicine Inje University College of Medicine Busan 614-735 South Korea Department of Internal Medicine Chosun University College of Medicine Gwangju Jeonbuk 501-717 South Korea Department of Internal Medicine Ulsan University Hospital University of Ulsan College of Medicine Ulsan 681-714 South Korea Department of Internal Medicine Dongguk University College of Medicine Gyeongju Gyeongbuk 791-707 South Korea Department of Internal Medicine Hallym University College of Medicine Anyang Gyeonggi 431-070 South Korea Department of Internal Medicine Ajou University School of Medicine Suwon

AIM： To investigate prevalence of C/onorchis sinensis in patients with gastrointestinal symptoms, and the relation of the infection to hepatobiliary diseases in 26 hospitals in Korea. METHODS： Consecutive patients who had been admitted to the Division of Gastroenterology with gastrointestinal symptoms were enrolled from March to April 2005. Of those who had been diagnosed with clonorchiasis, epidemiology and correlation between infection and hepatobiliary diseases were surveyed by questionnaire. RESULTS： Of 3080 patients with gastrointestinal diseases, 396 （12.9%） had clonorchiasis and 1140 patients （37.2%） had a history of eating raw freshwater fish. Of those with a history of raw freshwater fish ingestion, 238 （20.9%） patients had clonorchiasis. Cholangiocarcinoma was more prevalent in C. sinensis-infected patients than nonnfected patients [34/396 （8.6%） vs 145/2684 （5.4%）, P = 0.015]. Cholangiocarcinoma and clonorchiasis showed statistically significant positive cross-relation （P = 0.008）. Choledocholithiasis, cholecystolithiasis, cholangitis, hepatocellular carcinoma, and biliary pancreatitis did not correlate with clonorchiasis. CONCLUSION： Infection rate of clonorchiasis was still high in patients with gastrointestinal diseases in Korea, and has not decreased very much during the last two decades. Cholangiocarcinoma was related to clonorchiasis, which suggested an etiological role for the parasite.

关键词： Clonorchis sinensis Epidemiology Cholangiocarcinoma Korea Multicenter study Clonorchiasis

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减量FOLFIRINOX方案挽救性治疗吉西他滨抵抗的晚期胰腺癌:一项Ⅱ期研究

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癌症 2018年第8期37卷 327-335页

作者： Jung Hoon Kim Sang-Cheol lee Sung Yong Oh Seo-Young Song Namsu lee Eun Mi Nam Soonil lee In Gyu Hwang Hyo Rak lee kyu taek lee Sang-Byung Bae Han Jo Kim Joung Soon Jang Do Hyoung Lim Hyun Woo lee Seok Yun Kang Jung Hun Kang Department of Internal Medicine Institute of Health SciencesGyeongsang National University Divsion of Hematology and Oncology Department of Internal MedicineSoonchunhyang University HospitalCheonan Department of Internal Medicine Dong-A University Hospital Department of Internal Medicine Kangwon National University School of Medicine Divsion of Hematology and Oncology Department of Internal MedicineSoonchunhyang University HospitalSeoul Department of Internal Medicine Ewha Womans UniversityCollege of Medicine Department of Internal Medicine Dankook University Hospital Department of Internal Medicine Chung-Ang UniversityCollege of Medicine Division of Hematology and Medical Oncology Department of Internal MedicineKorea Cancer Hospital Department of Hematology-Oncology Ajou University Hospital

背景与目的奥沙利铂、伊立替康、氟尿嘧啶和亚叶酸的联合化疗方案(FOLFIRINOX)极大提高了晚期胰腺癌患者的生存期。然而,FOLFIRINOX方案作为吉西他滨失败后二线治疗的疗效尚未进行前瞻性的检测。我们研究了减量FOLFIRINOX方案治疗吉西... 详细信息

背景与目的奥沙利铂、伊立替康、氟尿嘧啶和亚叶酸的联合化疗方案(FOLFIRINOX)极大提高了晚期胰腺癌患者的生存期。然而,FOLFIRINOX方案作为吉西他滨失败后二线治疗的疗效尚未进行前瞻性的检测。我们研究了减量FOLFIRINOX方案治疗吉西他滨抵抗的晚期胰腺癌患者的可行性和安全性。方法在14家医院进行了这一多中心II期前瞻、开放标签的单臂研究。经组织学确诊为胰腺浸润性导管腺癌、有可测量或可评价的病灶、东部肿瘤协作组体能状况评分0或1分、器官功能良好、年龄19岁或以上的患者符合入组条件。减量FOLFIRINOX方案的组成:奥沙利铂65 mg/m2、伊立替康135 mg/m2和亚叶酸400 mg/m2,第1天静脉注射;5?氟尿嘧啶2000 mg/m2,第1–2天持续静脉输注46 h;每2周重复。主要终点为FOLIFLIOX治疗起始后的无进展生存期。次要终点为客观缓解率、疾病控制率、总生存期、安全性和耐受性。采用Kaplan?Meier法评估了总生存期和无进展生存期。结果我们招募了来自14个中心的39例患者。客观缓解率为10.3%,疾病控制率为64.1%。6个月和1年总生存率分别为59.0%和15.4%。中位无进展生存期和总生存期分别为3.8个月[95%置信区间(confidence interval,CI)=1.5–6.0个月]和8.5个月(95%CI=5.6–11.4个月)。3或4级不良事件为中性粒细胞减少(41%)、恶心(10.3%)、食欲减退(10.3%)、贫血(7.7%)、黏膜炎(7.7%)、肺炎/胸膜融合(5.1%)和乏力(5.1%)。发生1例由感染性休克引起的治疗相关死亡。结论减量FOLFIRINOX方案有望作为二线方案治疗吉西他滨抵抗的胰腺癌。

关键词：减量FOLFIRINOX方案二线治疗胰腺癌吉西他滨

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Novel Perovskite Oxide Hybrid Nanofibers Embedded with Nanocatalysts for Highly Efficient and Durable Electrodes in Direct CO_(2) Electrolysis

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Nano-Micro Letters 2024年第5期16卷 214-230页

作者： Akromjon Akhmadjonov kyung taek Bae Kang taek lee Department of Mechanical Engineering KAISTDaejeon 34141Republic of Korea KAIST Graduate School of Green Growth and Sustainability Daejeon 34141Republic of Korea

The unique characteristics of nanofibers in rational electrode design enable effec-tive utilization and maximizing material properties for achieving highly efficient and sustainable CO_(2) reduction reactions( CO_(2)RRs)in solid oxide elec-trolysis cells(SOECs).However,practical appli-cation of nanofiber-based electrodes faces chal-lenges in establishing sufficient interfacial contact and adhesion with the dense *** tackle this challenge,a novel hybrid nanofiber electrode,La_(0.6)Sr_(0.4)Co_(0.15)Fe_(0.8)Pd_(0.05)O_(3-δ)(H-LSCFP),is developed by strategically incorporating low aspect ratio crushed LSCFP nanofibers into the excess porous interspace of a high aspect ratio LSCFP nanofiber framework synthesized via electrospinning *** consecutive treatment in 100% H_(2) and CO_(2) at 700°C,LSCFP nanofibers form a perovskite phase with in situ exsolved Co metal nanocatalysts and a high concentration of oxygen species on the surface,enhancing CO_(2) *** SOEC with the H-LSCFP electrode yielded an outstanding current density of 2.2 A cm^(-2) in CO_(2) at 800°C and 1.5 V,setting a new benchmark among reported nanofiber-based *** twinning of the H-LSCFP reveals improved contact adhesion and increased reaction sites for CO_(2)*** present work demonstrates a highly catalytically active and robust nanofiber-based fuel electrode with a hybrid structure,paving the way for further advancements and nanofiber applications in CO_(2)-SOECs.

关键词： Nanofibers Fuel electrodes Digital twinning CO_(2)reduction reaction Solid oxide electrolysis cells

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Topic Modeling Based Warning Prioritization from Change Sets of Software Repository

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Journal of Computer Science & Technology 2020年第6期35卷 1461-1479页

作者： Jung-Been lee taek lee Hoh Peter In College of Informatics Korea UniversitySeoul 02841Korea College of Knowledge-Based Services Engineering Sungshin UniversitySeoul 02844Korea

Many existing warning prioritization techniques seek to reorder the static analysis warnings such that true positives are provided first. However, excessive amount of time is required therein to investigate and fix prioritized warnings because some are not actually true positives or are irrelevant to the code context and topic. In this paper, we propose a warning prioritization technique that reflects various latent topics from bug-related code blocks. Our main aim is to build a prioritization model that comprises separate warning priorities depending on the topic of the change sets to identify the number of true positive warnings. For the performance evaluation of the proposed model, we employ a performance metric called warning detection rate, widely used in many warning prioritization studies, and compare the proposed model with other competitive techniques. Additionally, the effectiveness of our model is verified via the application of our technique to eight industrial projects of a real global company.

关键词： automated static analysis topic modeling warning prioritization

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Novel predictors for lymph node metastasis in submucosal invasive colorectal carcinoma

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World Journal of Gastroenterology 2017年第32期23卷 5936-5944页

作者： Kwangil Yim Daeyoun David Won In kyu lee Seong-taek Oh Eun Sun Jung Sung Hak lee Department of Hospital Pathology Seoul St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea Department of Surgery Seoul St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea Department of Surgery Uijeongbu St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea

AIM To evaluate a novel grading system to predict lymph node metastasis(LNM) in patients with submucosal invasive colorectal carcinoma(SICRC).METHODS We analyzed the associations between LNM and various clinicopathological features in 252 patients with SICRC who had undergone radical surgery at the Seoul Saint Mary's hospital between 2000 and *** LNM was observed in 31 patients(12.3%). The depth and width of the submucosal invasion, lymphatic invasion, tumor budding, and the presence of poorly differentiated clusters(PDCs) were significantly associated with the incidence of LNM. Using multivariate analysis, the receiver operating characteristic curvewas calculated and the area under curve(AUC) was used to compare the ability of the different parameters to identify the risk of LNM. The most powerful clinicopathological parameter for predicting LNM was lymphatic invasion(difference AUC = 0.204), followed by the presence or absence of tumor budding(difference AUC = 0.190), presence of PDCs(difference AUC = 0.172) and tumor budding graded by the Ueno method(difference AUC = 0.128). CONCLUSION Our results indicate that the tumor budding and the depth multiplied by the width measurements of submucosal invasion can provide important information for patients with SICRC.

关键词： Colorectal cancer Neoplasm invasion Lymph node Metastasis

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