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https://www.readbyqxmd.com/read/28808803/a-prototype-educational-model-for-hepatobiliary-interventions-unveiling-the-role-of-graphic-designers-in-medical-3d-printing
#1
Ramin Javan, Merissa N Zeman
In the context of medical three-dimensional (3D) printing, in addition to 3D reconstruction from cross-sectional imaging, graphic design plays a role in developing and/or enhancing 3D-printed models. A custom prototype modular 3D model of the liver was graphically designed depicting segmental anatomy of the parenchyma containing color-coded hepatic vasculature and biliary tree. Subsequently, 3D printing was performed using transparent resin for the surface of the liver and polyamide material to develop hollow internal structures that allow for passage of catheters and wires...
August 14, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28806301/risk-adjustment-in-alpps-is-associated-with-a-dramatic-decrease-in-early-mortality-and-morbidity
#2
Michael Linecker, Bergthor Björnsson, Gregor A Stavrou, Karl J Oldhafer, Georg Lurje, Ulf Neumann, René Adam, Francois-René Pruvot, Stefan A Topp, Jun Li, Ivan Capobianco, Silvio Nadalin, Marcel Autran Machado, Sergey Voskanyan, Deniz Balci, Roberto Hernandez-Alejandro, Fernando A Alvarez, Eduardo De Santibañes, Ricardo Robles-Campos, Massimo Malagó, Michelle L de Oliveira, Mickael Lesurtel, Pierre-Alain Clavien, Henrik Petrowsky
OBJECTIVE: To longitudinally assess whether risk adjustment in Associating Liver Partition and Portal Vein Ligation for Staged Hepatectomy (ALPPS) occurred over time and is associated with postoperative outcome. BACKGROUND: ALPPS is a novel 2-stage hepatectomy enabling resection of extensive hepatic tumors. ALPPS has been criticized for its high mortality, which is reported beyond accepted standards in liver surgery. Therefore, adjustments in patient selection and technique have been performed but have not yet been studied over time in relation to outcome...
August 11, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28804587/primary-hepatic-lymphoma-mimicking-cholangiocarcinoma
#3
Foroogh Forghani, Mohsen Masoodi, Maryam Kadivar
Primary hepatic lymphoma (PHL) presenting with obstructive jaundice is rare and can mimic a preoperative diagnosis of cholangiocarcinoma. We should consider PHL in patients with radiological hepatic disease with normal serum alpha-fetoprotein and carcinoembryonic antigen levels, and elevated lactate dehydrogenase. We present the case of a 67-year-old male with no significant medical history presented with abdominal pain, jaundice, fever, and abnormal liver function tests. Abdominal sonography and computed tomography scan suggested a diagnosis of obstructive jaundice and cholangitis due to cholangiocarcinoma (Klatskin tumor)...
July 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28793278/mixed-adenoneuroendocrine-carcinoma-derived-from-the-cystic-duct-a-case-report
#4
Yu-Ki Takemoto, Tomoyuki Abe, Hironobu Amano, Keiji Hanada, Akihito Okazaki, Tomoyuki Minami, Tsuyoshi Kobayashi, Masahiro Nakahara, Shuji Yonehara, Hideki Ohdan, Toshio Noriyuki
INTRODUCTION: Mixed adenoneuroendocrine carcinomas (MANECs) derived from cystic duct are extremely rare. PRESENTATION OF CASE: An 80-year-old woman was admitted to the department of surgery, Onomichi general hospital with abnormal liver function and jaundice. Enhanced abdominal computed tomography (CT) detected a well-enhanced papillary tumor in the cystic duct, which protruded into the common bile duct. The intrahepatic bile duct was dilated due to tumor obstruction...
July 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28783896/liver-fluke-associated-biliary-tract-cancer
#5
REVIEW
Piyapan Prueksapanich, Panida Piyachaturawat, Prapimphan Aumpansub, Wiriyaporn Ridtitid, Roongruedee Chaiteerakij, Rungsun Rerknimitr
Cholangiocarcinoma (CCA) is an aggressive cancer arising from epithelial cells of the bile duct. Most patients with CCA have an unresectable tumor at the time of diagnosis. In Western countries, the risk of CCA increases in patients with primary sclerosing cholangitis, whereas liver fluke infection appears to be the major risk factor for CCA in Asian countries. A diagnosis of liver fluke infection often relies on stool samples, including microscopic examination, polymerase chain reaction-based assays, and fluke antigen detection...
August 9, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28783171/the-pdgfr%C3%AE-laminin-b1-keratin-19-cascade-drives-tumor-progression-at-the-invasive-front-of-human-hepatocellular-carcinoma
#6
O Govaere, M Petz, J Wouters, Y-P Vandewynckel, E J Scott, B Topal, F Nevens, C Verslype, Q M Anstee, H Van Vlierberghe, W Mikulits, T Roskams
Human hepatocellular carcinomas (HCCs) expressing the biliary/hepatic progenitor cell marker keratin 19 (K19) have been linked with a poor prognosis and exhibit an increase in platelet-derived growth factor receptor α (PDGFRα) and laminin beta 1 (LAMB1) expression. PDGFRα has been reported to induce de novo synthesis of LAMB1 protein in a Sjogren syndrome antigen B (La/SSB)-dependent manner in a murine metastasis model. However, the role of this cascade in human HCC remains unclear. This study focused on the functional role of the PDGFRα-La/SSB-LAMB1 pathway and its molecular link to K19 expression in human HCC...
August 7, 2017: Oncogene
https://www.readbyqxmd.com/read/28767598/giant-liver-hemangioma-with-adult-kasabach-merritt-syndrome-case-report-and-literature-review
#7
Xiaolei Liu, Zhiying Yang, Haidong Tan, Li Xu, Yongliang Sun, Shuang Si, Liguo Liu, Wenying Zhou, Jia Huang
RATIONALE: Adult Kasabach-Merritt syndrome associated with giant liver hemangioma is rare; to date, most reports have been single-case reports, and no multi-case reports or literature reviews are available. DIAGNOSES: We conducted a retrospective analysis of 5 cases of adult Kasabach-Merritt syndrome associated with giant liver hemangioma treated at our hospital between 2011 and 2016. All 5 patients had varying severities of leukopenia, anemia, thrombocytopenia, prolonged prothrombin time, and hypofibrinogenemia...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28756216/current-controversies-in-cholangiocarcinoma
#8
Sergio Hoyos, Maria-Cristina Navas, Juan-Carlos Restrepo, Rafael Claudino Botero
Cholangiocarcinoma represents 10% of primary liver malignancies and accounts for less than 3% of all gastrointestinal malignant tumors, with an enormous geographical variation. This neoplasia can arise from the biliary tract epithelium or hepatic progenitor cells. Depending on the anatomic localization, it is classified into three subtypes: intrahepatic, perihilar and distal. This fact is one of the main difficulties, because there are many studies that indistinctly include the results in the management of these different types of cholangiocarcinoma, without differentiating its location and even including gallbladder cancer...
July 26, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28701219/excellent-local-control-and-tolerance-profile-after-stereotactic-body-radiotherapy-of-advanced-hepatocellular-carcinoma
#9
Eleni Gkika, Michael Schultheiss, Dominik Bettinger, Lars Maruschke, Hannes Philipp Neeff, Michaela Schulenburg, Sonja Adebahr, Simon Kirste, Ursula Nestle, Robert Thimme, Anca-Ligia Grosu, Thomas Baptist Brunner
BACKGROUND: To evaluate the efficacy and toxicity of stereotactic body radiotherapy (SBRT) in the treatment of advanced hepatocellular carcinoma (HCC). MATERIAL AND METHODS: Patients with large HCCs (median diameter 7 cm, IQR 5-10 cm) with a Child-Turcotte-Pugh (CTP) score A (60%) or B (40%) and Barcelona-Clinic Liver Cancer (BCLC) classification stage B or C were treated with 3 to 12 fractions to allow personalized treatment according to the size of the lesions and the proximity of the lesions to the organs at risk aiming to give high biologically equivalent doses assuming an α/β ratio of 10 Gy for HCC...
July 12, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28692048/increased-expression-of-programmed-cell-death-protein-1-on-nk-cells-inhibits-nk-cell-mediated-anti-tumor-function-and-indicates-poor-prognosis-in-digestive-cancers
#10
Y Liu, Y Cheng, Y Xu, Z Wang, X Du, C Li, J Peng, L Gao, X Liang, C Ma
Abnormal expression of activating/inhibitory receptors leads to natural killer (NK) cells dysfunction in tumor. Here we show that programmed cell death protein 1 (PD-1), a well-known immune checkpoint of T cells, is highly expressed on peripheral and tumor-infiltrating NK cells from patients with digestive cancers including esophageal, liver, colorectal, gastric and biliary cancer. The increased PD-1 expression on NK cells indicates poorer survival in esophageal and liver cancers. Blocking PD-1/PD-L1 signaling markedly enhances cytokines production and degranulation and suppresses apoptosis of NK cells in vitro...
July 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28686650/histopathological-findings-in-colorectal-liver-metastases-after-electrochemotherapy
#11
Gorana Gasljevic, Ibrahim Edhemovic, Maja Cemazar, Erik Brecelj, Eldar M Gadzijev, Maja M Music, Gregor Sersa
Electrochemotherapy of colorectal liver metastases has been proven to be feasible, safe and effective in a phase I/II study. In that study, a specific group of patients underwent two-stage operation, and the detailed histopathological evaluation of the resected tumors is presented here. Regressive changes in electrochemotherapy-treated liver metastases were evaluated after the second operation (in 8-10 weeks) in 7 patients and 13 metastases when the treated metastases were resected. Macroscopic and microscopic changes were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28675369/good-to-know-the-alpps-procedure-embracing-a-new-technique
#12
George-Andrei Popescu, Sorin Tiberiu Alexandrescu, Razvan Tudor Grigorie, Luminiţa Stoica, Cristian Alexandru Apavaloaie, Doina Hrehoreţ
BACKGROUND: Hepatic resection is the only potentially curative treatment for primary liver tumors and hepatic metastases. The most frightening postoperative complication of extensive hepatectomies is liver failure due to insufficient future liver remnant (FLR). The ALPPS technique (Associating Liver Partition and Portal vein Ligation for Staged hepatectomy) effectively increased the resectability of otherwise inoperable liver tumors (primary or secondary malignant liver tumor) by achieving a rapid and an effective hypertrophy of the FLR, which lowers postoperative liver failure risk...
May 2017: Chirurgia
https://www.readbyqxmd.com/read/28671339/role-of-erbb-her-family-of-receptor-tyrosine-kinases-in-cholangiocyte-biology
#13
REVIEW
Anna Pellat, Javier Vaquero, Laura Fouassier
The ErbB/HER family comprises four distinct tyrosine kinase receptors, EGFR/ErbB1/HER1, ErbB2/HER2, ErbB3/HER3 and ErbB4/HER4, which trigger intracellular signals at the origin of essential cellular functions including differentiation, proliferation, survival and migration. Epithelial cells, named cholangiocytes, that line intrahepatic and extrahepatic bile ducts, contribute substantially to biliary secretory functions and bile transport. Although ErbB receptors have been widely studied in cholangiocarcinoma (CCA), a malignancy of the biliary tract, knowledge of these receptors in biliary epithelium physiology and in non-malignant cholangiopathies is far from completed...
July 3, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28662515/trail-enhances-shikonin-induced-apoptosis-through-ros-jnk-signaling-in-cholangiocarcinoma-cells
#14
Guangyao Zhou, Zuqin Yang, Xiaodong Wang, Ran Tao, Yuanping Zhou
BACKGROUND/AIMS: Cholangiocarcinoma (CCA), arising from varying locations within the biliary tree, is the second most common primary liver malignancy worldwide. Shikonin, an active compound extracted from the Chinese herb Zicao, holds anti-bacterial, anti-inflammatory, and anti-tumor activities. However, the effect of shikonin on human cholangiocarcinoma and detailed mechanisms of TRAIL enhancement remains to be elucidated. The purpose of the study was to investigate the protective functions of TRAIL enhancement for shikonin induced apoptosis in cholangiocarcinoma cells...
June 29, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28638453/the-clinical-impact-of-c-met-over-expression-in-advanced-biliary-tract-cancer-btc
#15
Mi Hwa Heo, Hee Kyung Kim, Hansang Lee, Kyoung-Mee Kim, Jeeyun Lee, Se Hoon Park, Joon Oh Park, Ho Yeong Lim, Won Ki Kang, Young Suk Park, Seung Tae Kim
Background: c-MET is a proto-oncogene that encodes the tyrosine kinase receptor for hepatocyte growth factor (HGF). Activation of HGF-c-MET signaling involves cell invasiveness and evokes metastasis through direct involvement of tumor angiogenesis. However, the value of c-MET overexpression is still unknown in metastatic biliary tract cancer (BTC). Methods: We analyzed the incidence and clinicopathologic characteristics of c-MET overexpression in advanced BTC. Moreover, we investigated the value of c-MET overexpression in predicting response to gemicitabine plus cisplatin (GC), a first line standard regimen, and as a prognostic marker in metastatic BTC...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28632786/diagnostic-accuracy-of-magnetic-resonance-computed-tomography-and-contrast-enhanced-ultrasound-in-radiological-multimodality-assessment-of-peribiliary-liver-metastases
#16
Vincenza Granata, Roberta Fusco, Orlando Catalano, Antonio Avallone, Raffaele Palaia, Gerardo Botti, Fabiana Tatangelo, Francesco Granata, Marco Cascella, Francesco Izzo, Antonella Petrillo
PURPOSE: We compared diagnostic performance of Magnetic Resonance (MR), Computed Tomography (CT) and Ultrasound (US) with (CEUS) and without contrast medium to identify peribiliary metastasis. METHODS: We identified 35 subjects with histological proven peribiliary metastases who underwent CEUS, CT and MR study. Four radiologists evaluated the presence of peribiliary lesions, using a 4-point confidence scale. Echogenicity, density and T1-Weigthed (T1-W), T2-W and Diffusion Weighted Imaging (DWI) signal intensity as well as the enhancement pattern during contrast studies on CEUS, CT and MR so as hepatobiliary-phase on MRI was assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28617032/intraductal-papillary-neoplasia-of-the-bile-duct-with-malignancy-a-differentiated-entity-of-cholangiocarcinoma-with-a-better-prognosis-a-review-of-three-new-cases
#17
Baltasar Pérez Saborido, Martín Bailón Cuadrado, Mario Rodríguez López, Enrique Asensio Díaz, Beatriz Madrigal Rubiales, Asterio Barrera Rebollo
INTRODUCTION: Intraductal papillary neoplasms of the bile duct have been recognized as a differentiated entity to other biliary tumors since 2001. They are characterized by intraductal growth, with or without mucus production, and have malignant potential, although they have a better prognosis than other types of cholangiocarcinoma. MATERIAL AND METHODS: From January 2010 to August 2015, we included three patients with a confirmed diagnosis of bile duct intraductal papillary neoplasia with malignancy that were treated at our center...
June 15, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28611259/prevalence-risk-factors-and-survival-of-patients-with-intrahepatic-cholangiocarcinoma
#18
Paulina Chinchilla-López, Nancy Aguilar-Olivos, Jaime García-Gómez, Karen Hernández-Alejandro, Fredy Chablé-Montero, Daniel Motola-Kuba, Tushar Patel, Nahum Mendez-Sánchez
PURPOSE: To investigate the prevalence, related risk factors, and survival of intrahepatic cholangiocarcinoma in a Mexican population. MATERIAL AND METHODS: We conducted a cross-sectional study at Medica Sur Hospital in Mexico City with approval of the local research ethics committee. We found cases by reviewing all clinical records of in-patients between October 2005 and January 2016 who had been diagnosed with malignant liver tumors. Clinical characteristics and comorbidities were obtained to evaluate the probable risk factors and the Charlson index...
August 1, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28602220/inhibition-of-microrna-24-increases-liver-fibrosis-by-enhanced-menin-expression-in-mdr2-mice
#19
Chad Hall, Laurent Ehrlich, Fanyin Meng, Pietro Invernizzi, Francesca Bernuzzi, Terry C Lairmore, Gianfranco Alpini, Shannon Glaser
BACKGROUND: Liver transplantation remains the primary treatment for primary sclerosing cholangitis (PSC). Mdr2(-/-) mice provide a reliable in vivo model of PSC and develop characteristic biliary inflammation and fibrosis. We tested the hypothesis that the tumor suppressor protein menin is implicated in the progression of liver fibrosis and that menin expression can be regulated in the liver via microRNA-24 (miR-24). MATERIALS AND METHODS: Menin expression was measured in human PSC and Mdr2(-/-) mice...
May 11, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28581486/the-hippo-signaling-functions-through-the-notch-signaling-to-regulate-intrahepatic-bile-duct-development-in-mammals
#20
Nan Wu, Quy Nguyen, Ying Wan, Tiaohao Zhou, Julie Venter, Gabriel A Frampton, Sharon DeMorrow, Duojia Pan, Fanyin Meng, Shannon Glaser, Gianfranco Alpini, Haibo Bai
The Hippo signaling pathway and the Notch signaling pathway are evolutionary conserved signaling cascades that have important roles in embryonic development of many organs. In murine liver, disruption of either pathway impairs intrahepatic bile duct development. Recent studies suggested that the Notch signaling receptor Notch2 is a direct transcriptional target of the Hippo signaling pathway effector YAP, and the Notch signaling is a major mediator of the Hippo signaling in maintaining biliary cell characteristics in adult mice...
July 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
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