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perihilar cholangiocarcinoma

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https://www.readbyqxmd.com/read/28445951/pd-l1-expression-in-perihilar-and-intrahepatic-cholangiocarcinoma
#1
Jacqueline Fontugne, Jérémy Augustin, Anaïs Pujals, Philippe Compagnon, Benoit Rousseau, Alain Luciani, Christophe Tournigand, Daniel Cherqui, Daniel Azoulay, Jean-Michel Pawlotsky, Julien Calderaro
Cholangiocarcinoma is an aggressive biliary neoplasm lacking effective therapeutic agents. Immunotherapies targeting the PD-L1/PD-1 immune checkpoint have shown encouraging results in solid and hematologic cancers in clinical trials. Response to these immunomodulators is correlated with PD-L1 expression. Our goal was to characterize PD-L1 expression in intra-hepatic (iCCA) and perihilar (pCCA) cholangiocarcinomas, and to correlate our results with clinicopathological features, density of tumor-infiltrating lymphocytes (TILs) and PD-1 expression...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428711/cullin-4a-is-associated-with-epithelial-to-mesenchymal-transition-and-poor-prognosis-in-perihilar-cholangiocarcinoma
#2
Tong-Jun Zhang, Dong Xue, Cheng-De Zhang, Ze-Dong Zhang, Qing-Ran Liu, Jian-Qiang Wang
AIM: To explore the functional role of cullin 4A (CUL4A), a core subunit of E3 ubiquitin ligase, in perihilar cholangiocarcinoma (PHCC). METHODS: The expression of CUL4A in PHCC cell lines was evaluated by Western blot and quantitative reverse transcription-polymerase chain reaction. Immunohistochemistry (IHC) was adopted to investigate the relationship between CUL4A expression and clinicopathological characteristics of PHCC. Univariate analysis and multivariate regression analysis were performed to analyze the risk factors related to overall survival (OS) and progression-free survival (PFS) of PHCC patients...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28419539/pd-l1-expression-in-extrahepatic-cholangiocarcinoma
#3
Dirk Walter, Eva Herrmann, Andreas Schnitzbauer, Stefan Zeuzem, Martin Leo Hansmann, Jan Peveling-Oberhag, Sylvia Hartmann
AIMS: To investigate expression of programmed cell death 1 (PD-1) receptor / programmed cell death ligand 1 (PD-L1) pathway as well as clinicopathological characteristics in extrahepatic cholangiocarcinoma (eCCA). METHODS: Tissue samples from patients with eCCA (n=69; perihilar CCA=40, distal CCA=29), who underwent surgical resection in the period from 2007 to 2015 were evaluated for PD-1, PD-L1, CD3 and CD163 expression and correlation with clinicopathological characteristics, including survival data, was performed...
April 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28409558/in-vitro-detection-of-cholangiocarcinoma-cells-using-a-fluorescent-protein-expressing-oncolytic-herpes-virus
#4
R J S Coelen, M J de Keijzer, R Weijer, V V Loukachov, J K Wiggers, F P J Mul, A C W A van Wijk, Y Fong, M Heger, T M van Gulik
Pathological confirmation is desired prior to high-risk surgery for suspected perihilar cholangiocarcinoma (PHC), but preoperative tissue diagnosis is limited by poor sensitivity of available techniques. This study aimed to validate whether a tumor-specific enhanced green fluorescent protein (eGFP)-expressing oncolytic virus could be used for cholangiocarcinoma (CC) cell detection. Extrahepatic CC cell lines SK-ChA-1, EGI-1, TFK-1 and control cells (primary human liver cells) were exposed to the oncolytic herpes simplex type 1 virus NV1066 for up to 24 h in adherent culture...
April 14, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28399849/atorvastatin-does-not-protect-against-ischemia-reperfusion-damage-in-cholestatic-rat-livers
#5
Jimme K Wiggers, Rowan F van Golen, Joanne Verheij, Annemiek M Dekker, Thomas M van Gulik, Michal Heger
BACKGROUND: Extrahepatic cholestasis sensitizes the liver to ischemia/reperfusion (I/R) injury during surgery for perihilar cholangiocarcinoma. It is associated with pre-existent sterile inflammation, microvascular perfusion defects, and impaired energy status. Statins have been shown to protect against I/R injury in normal and steatotic mouse livers. Therefore, the hepatoprotective properties of atorvastatin were evaluated in a rat model of cholestatic I/R injury. METHODS: Male Wistar rats were subjected to 70% hepatic ischemia (during 30 min) at 7 days after bile duct ligation...
April 11, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28389139/emerging-molecular-therapeutic-targets-for-cholangiocarcinoma
#6
REVIEW
Sumera Rizvi, Gregory J Gores
Cholangiocarcinomas (CCAs) are diverse epithelial tumors arising from the liver or large bile ducts with features of cholangiocyte differentiation, and are classified anatomically into intrahepatic (iCCA), perihilar (pCCA), and distal CCA (dCCA). Each subtype has distinct risk factors, molecular pathogenesis, therapeutic options, and prognosis. CCA is an aggressive malignancy with a poor overall prognosis and median survival of less than 2 years in patients with advanced disease. Potentially curative surgical treatment options are limited to the subset of patients with early stage disease...
April 4, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28376540/update-on-cholangiocarcinoma-potential-impact-of-genomic-studies-on-clinical-management
#7
Dirk Walter, Sylvia Hartmann, Oliver Waidmann
The term cholangiocarcinoma (CCA) comprises neoplasms of the intrahepatic, perihilar, and distal bile duct. Five-year survival rates of patients with CCA are below 20 %, and no targeted therapy could prove a benefit in comparison to the standard treatment of cisplatinum and gemcitabine. In recent years, next generation sequencing studies revealed a profound genomic heterogeneity of CCA subtypes potentially affecting the design of future therapy trials. This review provides a concise update on current clinical management of CCA including data of recent genomic studies and differences between CCA subtypes...
April 4, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28364811/treatment-options-in-patients-awaiting-liver-transplantation-with-hepatocellular-carcinoma-and-cholangiocarcinoma
#8
REVIEW
Alberto Unzueta, Roniel Cabrera
Liver transplantation (LT) provides a good chance of cure for selected patients with hepatocellular carcinoma (HCC) and perihilar cholangiocarcinoma (pCCA). Patients with HCC on a waiting list for LT are at risk for tumor progression and dropout. Treatment of HCC with locoregional therapies may lessen dropout due to tumor progression. Strict selection and adherence to the LT criteria for patients with pCCA before and after neoadjuvant chemotherapy are critical for optimal outcome with LT. This article reviews the existing data for the various treatment strategies used for patients with HCC and pCCA awaiting LT...
May 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28355772/-progress-in-application-of-three-dimensional-imaging-technique-in-complex-hepatobiliary-surgery
#9
G W Ji, F P Zhu, X C Li
Hepatobiliary surgery is considered to be technically challenging because of complex intrahepatic and perihilar anatomical structures and variations.Nowadays, three-dimensional imaging technique plays an important role in the time of precise liver surgery.Three-dimensional images depict the spatial location of tumor, and the course, confluence pattern and variation of portal vein, hepatic artery, biliary system and hepatic vein distinctly while showing involved hepatic segments and the relationship with adjacent vessels from omnidirectional view, measuring the length of margin and future remnant liver...
April 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28343588/preoperative-biliary-drainage-in-patients-with-resectable-perihilar-cholangiocarcinoma-is-percutaneous-transhepatic-biliary-drainage-safer-and-more-effective-than-endoscopic-biliary-drainage-a-meta-analysis
#10
Aimen Al Mahjoub, Benjamin Menahem, Audrey Fohlen, Benoit Dupont, Arnaud Alves, Guy Launoy, Jean Lubrano
PURPOSE: To determine the best initial procedure for performing preoperative biliary drainage in patients with resectable perihilar cholangiocarcinoma (PHCC). MATERIALS AND METHODS: MEDLINE/PubMed and the Cochrane database were searched for all studies published until June 2016 comparing endoscopic biliary drainage (EBD) and percutaneous transhepatic biliary drainage (PTBD) for preoperative biliary drainage. Meta-analysis was performed by using Review Manager 5...
April 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28338651/dichotomy-in-intrahepatic-cholangiocarcinomas-based-on-histologic-similarities-to-hilar-cholangiocarcinomas
#11
Masayuki Akita, Kohei Fujikura, Tetsuo Ajiki, Takumi Fukumoto, Kyoko Otani, Takeshi Azuma, Tomoo Itoh, Yonson Ku, Yoh Zen
Intrahepatic cholangiocarcinomas were classified into two types based on their microscopic appearance. Tumors with histologic similarities to hilar cholangiocarcinomas (predominantly ductal adenocarcinomas with minor tubular components, if present, restricted to the invasive front) were defined as the perihilar type, whereas the others were classified as peripheral cholangiocarcinomas. Among the 47 cases examined in the present study, 26 (55%) were classified as the perihilar type, whereas 21 (45%) were the peripheral type...
March 24, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28329917/preoperative-radiologic-evaluation-of-cholangiocarcinoma
#12
REVIEW
So Yeon Kim
In patients with cholangiocarcinoma, surgical resection with curative intent is the only way to achieve cure. Since surgical resection of cholangiocarcinomas is technically demanding, determination of resectability and accurate preoperative staging are crucial. For these purposes, high quality imaging including multidetector computed tomography and magnetic resonance imaging with magnetic resonance cholangiopancreaticography, is mandatory. This article will present recent advances in imaging techniques for cholangiocarginomas, potential pitfalls in imaging evaluation, and a checklist for preoperative radiologic assessment of resectability in these patients with an emphasis on perihilar cholangiocarinoma...
March 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28318553/comment-on-clinicopathological-study-on-metachronous-double-cholangiocarcinomas-of-perihilar-and-subsequent-distal-bile-duct-origin
#13
EDITORIAL
John Allendorf
No abstract text is available yet for this article.
March 17, 2017: Surgery
https://www.readbyqxmd.com/read/28292628/the-role-of-minimally-invasive-surgery-in-the-treatment-of-cholangiocarcinoma
#14
REVIEW
G B Levi Sandri, G Spoletini, G Mascianà, M Colasanti, P Lepiane, G Vennarecci, V D'Andrea, G M Ettorre
Cholangiocarcinoma (CC) is the second most common type of primary liver cancer after hepatocellular carcinoma. Surgical resection is considered the only curative treatment for CC. In general, laparoscopic liver surgery (LLS) is associated with improved short-term outcomes without compromising the long-term oncological outcome. However, the role of LLS in the treatment of CC is not yet well established. In addition, CC may arise in any tract of the biliary tree, thus requiring different types of treatment, including pancreatectomies and extrahepatic bile duct resections...
March 3, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28288474/cholangiocellular-carcinoma
#15
Arndt Vogel, Anna Saborowski
BACKGROUND: Cholangiocarcinomas (CCAs) are aggressive malignancies that display features of biliary differentiation. According to their anatomical location, CCAs are commonly classified as intrahepatic and extrahepatic tumors, the latter entity being further subdivided into perihilar CCAs, also termed as Klatskin tumors, and distal tumors. While a majority of CCAs occur sporadically, established risk factors such as liver fluke infestation or primary sclerosing cholangitis exist. SUMMARY: Due to lack of efficient early screening markers, CCAs are frequently diagnosed at an advanced stage when curative surgical resection is not an option...
March 14, 2017: Digestion
https://www.readbyqxmd.com/read/28279621/high-mortality-after-alpps-for-perihilar-cholangiocarcinoma-case-control-analysis-including-the-first-series-from-the-international-alpps-registry
#16
Pim B Olthof, Robert J S Coelen, Jimme K Wiggers, Bas Groot Koerkamp, Massimo Malago, Roberto Hernandez-Alejandro, Stefan A Topp, Marco Vivarelli, Luca A Aldrighetti, Ricardo Robles Campos, Karl J Oldhafer, William R Jarnagin, Thomas M van Gulik
INTRODUCTION: Resection of perihilar cholangiocarcinoma (PHC) entails high-risk surgery with postoperative mortality reported up to 18%, even in specialized centers. The aim of this study was to compare outcomes of PHC patients who underwent associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) to patients who underwent resection without ALPPS. METHODS: All patients who underwent ALPPS for PHC were identified from the international ALPPS registry and matched controls were selected from a standard resection cohort from two centers based on future remnant liver size...
March 6, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28229074/imaging-of-cholangiocarcinoma
#17
REVIEW
Susann-Cathrin Olthof, Ahmed Othman, Stephan Clasen, Christina Schraml, Konstantin Nikolaou, Malte Bongers
Cholangiocarcinoma (CC) is the second most common primary hepatobiliary tumour, and it is increasing in incidence. Imaging characteristics, behaviour, and therapeutic strategies in CC differ significantly, depending on the morphology and location of the tumour. In cross-sectional imaging, CCs can be classified according to the growth pattern (mass-forming, periductal infiltrating, intraductal) and the location (intrahepatic, perihilar, extrahepatic/distal). The prognosis of CC is unfavourable and surgical resection is the only curative treatment option; thus, early diagnosis (also in recurrent disease) and accurate staging including the evaluation of lymph node involvement and vascular infiltration is crucial...
December 2016: Visceral Medicine
https://www.readbyqxmd.com/read/28209950/-clinico-pathological-factors-and-prognosis-scale-for-portal-cholangiocarcinoma
#18
Yu O Zharikov, Yu A Kovalenko, A A Olifir, D V Kalinin, A V Czhao
INTRODUCTION: The objective of this study was to derive a prognostic scale to predict overall survival (OS) after a curative resection of perihilar cholangiocarcinoma (PHC). MATERIAL AND METHODS: The data of 55 patients with portal cholangiocarcinoma were analysed. Patients were treated at the A.V. Vishnevsky Institute of Surgery from 2011 to 2015. Surgical treatment after biliary decompression was performed in 37 (67.3%) patients. In the long-term period we observed 36 (97...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28202062/isolated-igg4-related-sclerosing-cholangitis-misdiagnosed-as-malignancy-in-an-area-with-endemic-cholangiocarcinoma-a-case-report
#19
Narongsak Rungsakulkij, Pattana Sornmayura, Penampai Tannaphai
BACKGROUND: The most common cause of perihilar obstruction is cholangiocarcinoma, especially in Thailand. Benign perihilar stricture represents less than 20% of cases. IgG4-related disease and IgG4-related sclerosing cholangitis, however, have been receiving increased recognition. Isolated IgG4-related sclerosing cholangitis is less common. The preoperative diagnosis of IgG4-related sclerosing cholangitis without pancreatic involvement is very difficult because the clinical presentation and preoperative evaluation are extremely difficult to distinguish from perihilar cholangiocarcinoma...
February 15, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28187867/clinicopathologic-study-on-metachronous-double-cholangiocarcinomas-of-perihilar-and-subsequent-distal-bile-duct-origin
#20
Kentaro Shinohara, Yoshie Shimoyama, Tomoki Ebata, Yukihiro Yokoyama, Takashi Mizuno, Masato Nakaguro, Masato Nagino
BACKGROUND: Despite an increasing number of long-term survivors after the resection of perihilar cholangiocarcinoma, metachronous carcinoma in the remnant distal bile duct has not been well documented because of its rarity. The aim of this study was to clarify the feasibility of operative resection and the pathologic features for metachronous double cholangiocarcinomas. METHODS: Between 2003 and 2013, 6 patients underwent resections for both a primary perihilar cholangiocarcinoma and a metachronous distal cholangiocarcinoma...
February 7, 2017: Surgery
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