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Ampulla vater

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https://www.readbyqxmd.com/read/29259073/phase-ii-study-of-panitumumab-in-ras-wild-type-metastatic-adenocarcinoma-of-small-bowel-or-ampulla-of-vater
#1
Pat Gulhati, Kanwal Raghav, Rachna Shroff, Gauri Varadhachary, Milind Javle, Wei Qiao, Huamin Wang, Jeffrey Morris, Robert Wolff, Michael J Overman
LESSONS LEARNED: Panitumumab has no clinical activity in metastatic RAS wild-type small bowel adenocarcinoma (SBA) and ampullary adenocarcinoma (AAC), possibly due to the foregut and midgut derivation of small bowel and ampulla.These results, along with findings from genomic characterization of SBA, suggest that SBA represents a unique intestinal malignancy and treatments should not be habitually extrapolated from colorectal cancer.Further studies evaluating the benefit of targeted therapies exclusively in SBA and AAC are warranted...
December 19, 2017: Oncologist
https://www.readbyqxmd.com/read/29238914/clinical-and-genetic-implications-of-dna-mismatch-repair-deficiency-in-biliary-tract-cancers-associated-with-lynch-syndrome
#2
Jordan M Cloyd, Yun Shin Chun, Naruhiko Ikoma, Jean Nicolas Vauthey, Tlhomas A Aloia, Amanda Cuddy, Miguel A Rodriguez-Bigas, Y Nancy You
PURPOSE: Patients with Lynch syndrome (LS) have a significantly elevated lifetime risk of developing biliary tract cancers (BTCs) compared to the general population. However, few studies have characterized the clinical characteristics, genetic features, or long-term outcomes of mismatch-repair deficient (dMMR) cholangiocarcinomas associated with LS. METHODS: A retrospective review of a prospectively maintained Familial High-Risk GI Cancer Clinic database identified all patients with BTCs evaluated from 2006 to 2016 who carried germline mutations in MLH1, MSH2, MSH6, or PMS2...
December 14, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29230130/periampullary-carcinoma-unusual-sites-of-metastasis
#3
Anju Bansal, Varsha Dalal, Manveen Kaur, Fouzia Siraj
Background: Periampullary neoplasms include carcinomas of the duodenum, ampulla of Vater, distal common bile duct, and pancreas. The aggressive course of these neoplasms is attributable to the delay in diagnosis, as patients have no symptoms until advanced stages of the disease. More than half of patients have distant metastasis at the time of diagnosis. The most frequent sites of metastasis are the liver, lymph nodes, peritoneum, lung, bone, kidney, and, rarely the skin. Case Report: We report the case of a 45-year-old female patient with adenocarcinoma of the ampulla of Vater metastasizing to the right parietal skull with overlying cutaneous involvement 1 year after a Whipple procedure...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29222962/east-meets-west-historical-investigation-of-non-operative-biliary-interventions
#4
EDITORIAL
Takao Itoi, Todd H Baron
Endoscopic retrograde cholangiopancreatography (ERCP) has become an established procedure not only for diagnosis using direct opacification, but also for various therapeutic interventions within the pancreaticobiliary system. This concept, "non-operative and intraluminal retrograde approach to the ampulla of Vater", which is the outlet for both the pancreatic duct and bile duct, was first described by radiologists Rabinov and Simon in 1965 [1]. They performed cannulation and injection of the ampulla of Vater by intubation using a new instrument through the mouth under television fluoroscopic control...
December 9, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/29199665/metastasectomy-for-recurrent-or-metastatic-biliary-tract-cancers-a-single-center-experience
#5
I Park, Y S Kim, S J Sym, H K Ahn, K K Kim, Y H Park, J N Lee, D B Shin
PURPOSE: To assess efficacy or long-term result of metastasectomy for recurrent or metastatic biliary tract carcinoma (BTC), we conducted a retrospective review of the outcomes of metastasectomy for recurrent or metastatic BTCs, comprising intrahepatic cholangiocellular carcinoma (IHCCC), proximal and distal common bile duct cancer (pCBDC and dCBDC), gallbladder cancer (GBC), and ampulla of Vater cancer (AoVC). PATIENTS AND METHODS: The clinicopathological features and outcomes of BTC patients who underwent surgical resection for the primary and metastatic disease at the Gachon University Gil Medical Centre from 2003 to 2013 were reviewed retrospectively...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29167218/concomitant-aids-cholangiopathy-and-fanconi-syndrome-as-complications-of-hiv-in-a-single-patient
#6
Robert Maweni, Jins Kallampallil, Szewai Leong, Srikanth Akunuri
We describe the case of a 50-year-old woman presenting to our acute medicine department with generalised non-specific symptoms on a background of HIV managed on triple therapy (tenofovir, lamivudine and zidovudine). On admission, she was noted to be acidotic with proteinuria, glycosuria, hypophosphataemia and generalised body pain, and was diagnosed with Fanconi's renotubular syndrome secondary to tenofovir. It was also noted that she had elevated liver dysfunction markers, and an MRI of the liver revealed a focal stricture near the ampulla of Vater, resulting in a diagnosis of AIDS cholangiopathy...
November 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29137005/bare-metal-stents-across-the-vater-s-ampulla-is-a-safe-method-for-patients-with-lower-bile-duct-obstruction
#7
Xiao-Nan Mao, Zai-Ming Lu, Feng Wen, Hong-Yuan Liang, Qi-Yong Guo
This study explored the effect of the implant position of stents across the Vater's ampulla on treatment outcomes in patients with lower bile duct obstruction.In the retrospective study, 41 patients with malignant obstruction of the lower bile duct and obstructive jaundice received percutaneous transhepatic biliary placement of bare-metal stents. Basic demographic data on patients, such as sex, age, and primary diseases, and follow-up data, including postoperative complications and jaundice-free survival, were recorded...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29131967/prognostic-role-of-the-neutrophil-to-lymphocyte-ratio-nlr-in-patients-with-operable-ampullary-carcinoma
#8
Nebi Serkan Demirci, Gokmen Umut Erdem
Ampullary carcinoma or cancer of the ampulla of Vater is a rare malignancy with a high recurrence rate. Although cost-effective biomarkers, such as neutrophil-to-lymphocyte ratio (NLR), have been investigated in other cancers for predicting postoperative prognosis in patients, studies on the role of NLR in ampullary cancer are scarce. Here we aimed to evaluate the prognostic significance of the preoperative neutrophil-to-lymphocyte ratio (NLR) in patients with operable ampullary carcinoma. We retrospectively reviewed 87 patients who underwent pancreaticoduodenectomy for the treatment of ampullary carcinoma between December 1999 and April 2014...
November 13, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29121415/efficacy-and-safety-of-trametinib-in-japanese-patients-with-advanced-biliary-tract-cancers-refractory-to-gemcitabine
#9
Masafumi Ikeda, Tatsuya Ioka, Akira Fukutomi, Chigusa Morizane, Akiyoshi Kasuga, Hideaki Takahashi, Akiko Todaka, Takuji Okusaka, Caretha L Creasy, Shelby Gorman, Daniel J Felitsky, Mikiro Kobayashi, Fanghong Zhang, Junji Furuse
Gemcitabine-based therapy remains the mainstay of treatment for patients with biliary tract cancers (BTCs) with no second-line treatment(s) established yet. Aberrant activation of MAPK pathway in patients with BTC indicates its importance in BTC. Trametinib is a potent, highly selective, allosteric non-competitive inhibitor of MEK1/MEK2. In this Phase IIa open-label, single-arm study, we investigated efficacy and safety of trametinib in Japanese patients with advanced BTC refractory to gemcitabine-based therapy...
November 9, 2017: Cancer Science
https://www.readbyqxmd.com/read/28990001/safety-of-duodenal-ampullectomy-for-benign-periampullary-tumors
#10
Alvin Lyle Kim, Young Il Choi
BACKGROUNDS/AIMS: Surgical resection, such as pancreaticoduodenectomy (PD), is used for treatment of benign periampullary tumors, but high morbidity and mortality resulting from PD can be a huddle. The aim of this study is to suggest a safe and less invasive procedure for treatment of benign periampullary tumors. METHODS: From January 2001 to September 2016, 31 patients with ampulla of Vater (AOV) tumors were reviewed retrospectively. Patients who were confirmed with malignancy through biopsy were excluded, except for one patient with malignancy and multiple underlying diseases...
August 2017: Annals of Hepato-Biliary-Pancreatic Surgery
https://www.readbyqxmd.com/read/28989008/metastatic-melanoma-in-the-ampulla-of-vater
#11
Kohei Yamakawa, Akira Kurita, Shunjiro Azuma, Yasushi Kudo, Shujiro Yazumi
No abstract text is available yet for this article.
October 5, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28900465/cytologic-features-of-tubular-adenoma-of-ampulla-causing-distal-common-bile-duct-stricture-a-case-report-and-review-of-the-literature
#12
Sangeeta Mantoo, Madhusudhan R Sanaka, Deborah J Chute
Adenomas of the ampulla of Vater are distinctly rare, representing <10% of periampullary neoplasms. Very few reports of the cytologic features of ampullary adenomas are present in literature, particularly in bile duct brushing samples. A case report and review of the literature is presented. The typical cytologic features of ampullary adenomas on cytologic preparations include tall, thin columnar cells with mildly hyperchromatic elongated nuclei and nuclear pseudostratification, in a relatively clean background...
2017: CytoJournal
https://www.readbyqxmd.com/read/28876573/hemosuccus-pancreaticus-from-ruptured-splenic-vein-pseudoaneurysm-secondary-to-necrotizing-pancreatitis-a-case-report
#13
M L Medina, C Saroca
Hemosuccus pancreaticus is a rare cause of gastrointestinal bleeding in which haemorrhage occurs from the ampulla of vater via the pancreatic duct, mostly from ruptured pseudoaneurysms. Our patient is a 25-year-old Filipino male who presented with intermittent epigastric pain associated with melena and decreasing haemoglobin despite multiple blood transfusions. EGD showed erythematous gastric and duodenal mucosa with no evidence of active bleeding. Whole abdominal CT scan with IV contrast showed diffusely prominent pancreas with areas of non-enhancement suggestive necrosis...
September 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28846834/microanatomical-profiles-on-the-lymphatic-system-in-the-human-ampulla-of-vater-immunohistochemistry-and-scanning-electron-microscopy
#14
Takuji Kagiya, Hiroshi Shimoda, Hirokazu Narita, Tadashi Odagiri, Seiji Watanabe, Keinosuke Ishido, Daisuke Kudo, Norihisa Kimura, Taiichi Wakiya, Kenichi Hakamada
BACKGROUND: Little information is available regarding microanatomy of lymphatic system in the ampulla of Vater, though it is of critical importance for an understanding of tumor progression via the lymphatics and determination of surgical strategy. The present study, therefore, aimed to demonstrate the distribution and microanatomical profiles on the lymphatic system in the ampulla. METHODS: The fine distribution and structure of the lymphatic vessels were investigated in the ampulla and the stomach by immunohistochemistry for lymphatic- (D2-40) and blood vascular- (CD31) specific markers and scanning electron microscopy...
August 28, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/28763696/long-term-observation-and-treatment-of-a-widespread-intraductal-papillary-neoplasm-of-the-bile-duct-extending-from-the-intrapancreatic-bile-duct-to-the-bilateral-intrahepatic-bile-duct-a-case-report
#15
Daisuke Hokuto, Takeo Nomi, Satoshi Yasuda, Takahiro Yoshikawa, Kohei Ishioka, Takatsugu Yamada, Takahiro Akahori, Kenji Nakagawa, Minako Nagai, Kota Nakamura, Shinsaku Obara, Hiromichi Kanehiro, Masayuki Sho
INTRODUCTION: Few studies have reported the long-term outcomes of surgical resected intraductal papillary neoplasm of the bile duct (IPNB). Here, we describe the long-term observation and treatment of a case of widespread IPNB. PRESENTATION OF CASE: A 57-year-old male was referred to our hospital due to jaundice and dilation of the intrahepatic bile duct. Computed tomography showed dilation and irregularities of the right intrahepatic and extrahepatic bile ducts together with a 3cm nodule in the common hepatic duct...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28738955/primary-site-predicts-grade-for-gastroenteropancreatic-neuroendocrine-tumors
#16
Timothy L Fitzgerald, Catalina Mosquera, C Suzanne Lea, Matthew McMullen
Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are rare and abstruse neoplasms with increasing incidence and clinical relevance. The National Cancer Data Base was examined to identify GEP-NET cases from 2004 to 2013. In total, 39,454 patients diagnosed with GEP-NET were identified. Median age was 61 years. Majority was female (50.13%), white (79.49%), and had low-grade neoplasms (84.39%). On univariate analysis, age, sex, race, primary site, tumor size, and regional lymph node involvement were associated with tumor grade (P < 0...
July 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28715900/gangliocytic-paraganglioma-an-unusual-cause-of-upper-gastrointestinal-bleeding
#17
Yolanda Sánchez Torrijos, Rafael León Montañés, María Ángeles Mejías Manzano
Gangliocytic paraganglioma is an uncommon tumor, which is usually located in the ampulla of Vater, and may get confused in the differential diagnosis with ampuloma or GIST. Here we present a case of a patient with upper gastrointestinal bleeding as a predominant symptom, objectified by endoscopy an ulcerative polypoid mass at the juxtapilar level, with histological result of gangliocítica paraganglioma after multiple biopsies, and finally surgical resection. The interest of this case is the difficulty for diagnosing, the different treatments and prognosis that this implies, especially for the tumor location, as surgery can lead to great complications...
August 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28693246/genetic-alterations-in-japanese-extrahepatic-biliary-tract-cancer
#18
Rei Noguchi, Kiyoshi Yamaguchi, Tsuneo Ikenoue, Yumi Terakado, Yasunori Ohta, Naohide Yamashita, Osamu Kainuma, Sana Yokoi, Yoshiaki Maru, Hiroki Nagase, Yoichi Furukawa
Biliary tract cancer (BTC) is one of the most devastating types of malignant neoplasms worldwide. However, the mechanisms underlying the development and progression of BTC remain unresolved. BTC includes extrahepatic bile duct carcinoma (EBDC), gallbladder carcinoma (GBC) and ampulla of Vater carcinoma (AVC), named according to the location of the tumor. Although genetic alterations of intrahepatic cholangiocarcinoma have been investigated, those of EBDC, GBC and AVC have not yet been fully understood. The present study analyzed somatic mutations of 50 cancer-associated genes in 27 Japanese BTC cells, including: 11 EBDC, 14 GBC and 2 AVC...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28660632/proposed-new-staging-system-for-ampulla-of-vater-cancer-with-greater-discriminatory-ability-multinational-study-from-eastern-and-western-centers
#19
Jin He, Jae Ri Kim, Seung Yeoun Lee, Jinseok Oh, Taesung Park, Mee Joo Kang, Wooil Kwon, Hongbeom Kim, Sun-Whe Kim, John L Cameron, Christopher L Wolfgang, Jin-Young Jang
BACKGROUND: We built a multinational retrospective database of patients with ampulla of Vater cancer to develop a reliable new staging system. METHOD: This study included 841 patients with ampulla of Vater cancer after curative surgery at Seoul National University Hospital (n = 440) and Johns Hopkins University medical institutions (n = 401) between 1985 and 2013. RESULTS: The 5-year overall survival (OS) rates of patients staged according to the 7(th) American Joint Committee on Cancer staging system were 80...
June 29, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/28658766/clinicopathological-study-of-carcinoma-of-the-ampulla-of-vater-with-special-reference-to-muc1-muc2-and-muc5ac-expression
#20
Maithili Mandar Kulkarni, Siddhi Gaurish Sinai Khandeparkar, Avinash R Joshi, Aniket Kakade, Lokesh Fegade, Ketan Narkhede
INTRODUCTION: The ampulla of Vater consists of papilla, common channel, distal common bile duct and the distal main pancreatic duct. Ampullary carcinomas arise from two different types of mucosa, reflecting their broad histomorphological spectrum. Adenocarcinomas originating in the ampulla of Vater are classified as having either 'Intestinal' or 'Pancreatobiliary' type of differentiation. Pancreatobiliary type has consistently shown a worse prognosis. Various types of mucins are distributed in normal tissues and gastrointestinal tumours...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
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