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https://www.readbyqxmd.com/read/28915580/molecular-and-functional-characterization-of-a-new-3-end-kit-juxtamembrane-deletion-in-a-duodenal-gist-treated-with-neoadjuvant-imatinib
#1
Vittorio Perfetti, Erik Laurini, Suzana Aulić, Maurizio Fermeglia, Roberta Riboni, Marco Lucioni, Elena Dallera, Sara Delfanti, Luigi Pugliese, Francesco Saverio Latteri, Andrea Pietrabissa, Sabrina Pricl
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. GISTs express the receptor tyrosine kinase KIT, and the majority of GISTs present KIT gain-of-function mutations that cluster in the 5' end of the receptor juxtamembrane domain. On the other hand, little information is known about GISTs carrying mutations in the 3' end of the KIT juxtamembrane domain. Here we report and discuss a clinical case of localized duodenal GIST whose molecular characterization revealed the presence of a new 21 nucleotide/7 amino acid deletion in the 3' end of KIT juxtamembrane domain (Δ574-580)...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914399/surgery-for-duodenal-gastrointestinal-stromal-tumors-a-single-center-experience
#2
Ping Chen, Tianqiang Song, Xin Wang, Hongyuan Zhou, Ti Zhang, Qiang Wu, Dalu Kong, Yunlong Cui, Huikai Li, Qiang Li
BACKGROUND: The duodenal gastrointestinal stromal tumors (GISTs) are an extremely rare subset of GISTs. The optimal surgical procedure remains not well defined. AIMS: We assessed the surgical approach and long-term outcomes of patients with duodenal GISTs who underwent limited resection (LR) versus pancreaticoduodenectomy (PD). METHODS: From November 2005 to January 2016, 64 consecutive patients with duodenal GISTs in a single center were retrospectively analyzed...
September 15, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28912818/a-successfully-treated-case-of-gastrointestinal-stromal-tumor-causing-severe-anemia-and-localized-peritonitis-showing-angina-pectoris-resulting-in-watershed-cerebral-infarction
#3
Yoshihide Sehara, Yuka Hayashi, Kenichi Ohya, Naoki Kaneko, Mikio Sawada
Ischemic stroke following acute myocardial infarction is a rare but a serious complication. Because the pathophysiology of stroke is dynamic, it is often hard to identify the cause of stroke. Here, we present the case of a 75-year-old man with ischemic stroke following angina pectoris caused by severe anemia and localized peritonitis due to gastrointestinal stromal tumor of small intestine. On admission, he showed consciousness disturbance, fever, and left hemiplegia. The electrocardiogram on admission showed ST-segment depression in V2 to V6 which was normalized 4 hours later...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28904693/-gastrointestinal-stromal-tumors-gist-status-and-news-through-our-experience-on-54-cases-and-review-of-literature
#4
Nezha Taoufiq, Asmaa Naim, Zineb Bouchbika, Nadia Benchekroune, Hassan Jouhadi, Souha Sahraoui, Abdelatif Benider
Tumors Gastrointestinal Stromal "GIST" are a very rare form of digestive tract cancers belonging to the family of sarcomas. The aim of this study is to establish the epidemiological profile, the diagnostic and therapeutic difficulties of this malignancy supported in a developing country. A retrospective study spread over 8 years from January 2002 to March 2010, was conducted at the Department of Radiotherapy and Oncology of Casablanca (Morocco) have collated 54 cases of Gastrointestinal Stromal tumors. The average age of our patients was 55 years...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28901002/-current-research-status-and-progress-of-primary-esophageal-gastrointestinal-stromal-tumors-in-china
#5
Guoren Li, Jianhua Dai
Primary esophageal gastrointestinal stromal tumors (GIST) is a rare independent disease with clinicopathological and molecular features different from other mesenchymal tumors. Authors searched and reviewed associated reports and summarized the morbidity trends, characteristics, diagnosis and treatment of esophageal GIST in China. Data show that the incidence and detection rate of esophageal GIST presents the rising trend. Imaging has some characteristics. Ultrasonography and CT are main methods and effective examinations to detect and prompt diagnosis of esophageal GIST...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900994/-analysis-of-gastric-gastrointestinal-stromal-tumors-in-shandong-province-a-midterm-report-of-multicenter-gissg1201-study
#6
Qingsheng Hou, Wenqiang Luo, Leping Li, Yong Dai, Lixin Jiang, Ailiang Wang, Xianqun Chu, Yuming Li, Daogui Yang, Chunlei Lu, Linguo Yao, Gang Cui, Huizhong Lin, Gang Chen, Qing Cui, Huanhu Zhang, Zengjun Lun, Lijian Xia, Yingfeng Su, Guoxin Han, Xizeng Hui, Zhixin Wei, Zuocheng Sun, Hongliang Guo, Yanbing Zhou
OBJECTIVE: To summarize the treatment status of gastric gastrointestinal stromal tumor (GIST) in Shandong province,by analyzing the clinicopathological features and prognostic factors. METHODS: Clinicopathological and follow-up data of 1 165 patients with gastric GIST between January 2000 and December 2013 from 23 tertiary referral hospitals in Shandong Province were collected to establish a database. The risk stratification of all cases was performed according to the National Institutes of Health(NIH) criteria proposed in 2008...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900983/-updates-on-adjuvant-therapy-in-gastrointestinal-stromal-tumor
#7
Haibo Qiu, Xiaowei Sun, Zhiwei Zhou
Surgery remains the primary treatment for patients with localized gastrointestinal stromal tumor (GIST), however, even after complete resection of the tumor, there is still a part of patients with tumor recurrence and metastasis. Imatinib, as adjuvant therapy in GIST patients with intermediate and high risk of recurrence, can significantly improve the disease-free survival, but whether it can prolong the overall survival is still unknown. It has reached a consensus that the intermediate and high risk patients should receive adjuvant therapy, but the duration for adjuvant therapy is still under investigation, especially for high-risk patients...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900473/resection-of-rectal-gist-using-a-novel-technique-a-report-of-two-cases
#8
Osama Eldamshety, Islam H Metwally, Elsayed Ghoneem, Wagdi F Elkashef
Rectal gastrointestinal stromal tumours (GISTs) are uncommon tumours and usually present with large sizes. We present two cases of rectal GIST. Imatinib was used in the setting of neoadjuvant and adjuvant therapy. Both tumours were resected transanally by the transanal endoscopic operation (TEO) platform. Oncosurgeons are recommended to implement sphincter-sparing surgeries for these cases.
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28888914/acute-diffuse-peritonitis-due-to-spontaneous-rupture-of-a-primary-gastrointestinal-stromal-tumor-of-the-jejunum-a-case-report
#9
Koki Sato, Hirofumi Tazawa, Seiji Fujisaki, Sotaro Fukuhara, Koki Imaoka, Yuzo Hirata, Mamoru Takahashi, Saburo Fukuda, Yoshio Kuga, Toshihiro Nishida, Hideto Sakimoto
INTRODUCTION: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. Overt peritonitis caused by GIST rupture is very uncommon. Three types of GIST rupture have been described: closed perforation due to abscess (abscess type), hemoperitoneum leading to rupture of the hematoma capsule in the tumor (hemoperitoneum type), and perforation of the digestive tract via a fistula leading to central necrosis of the tumor (bowel perforation type)...
August 23, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28876117/-duodenal-leiomyoma-a-rare-case-report
#10
Konrad Wroński, Janusz Kaczor, Zbigniew Masłowski
Neoplasms of the small bowel are rare and comprise only 1-5% of all gastrointestinal neoplasms. The most frequent malignant tumors located in the small bowel are adenocarcinomas, lymphomas and neuroendocrine tumors. Rarely observed are gastrointestinal stromal tumors (GIST), leiomyosarcomas and leiomyomas. Leiomyomas are most frequently seen in the jejunum followed by the ileum and lastly the duodenum. In most cases, a definite diagnosis of these tumors is not possible prior to surgical treatment. The treatment of choice for these tumors is surgery...
September 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28874632/duodenal-gastrointestinal-stromal-tumor-a-case-report
#11
Antonino Tornambe, Giuseppe Tornambe
AIM: To report an another case of duodenal GIST in patient that was treated with Whipple procedure. MATERIAL OF STUDY: We report a case of 69 years old men that was admitted with melena. The preoperative investigations suggested a suspected duodenal GIST.A Whipple pancreatico-duodenectomy was performed. Only 3-5% of GISTs occur in the duodenum. DISCUSSION: GIST were described as a separate entity by Mazur and Clark in 1983. These tumors are the most common among mesenchymal tumors of the gastrointeninal tract...
July 25, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28845017/organ-preserving-surgery-for-locally-advanced-duodenal-gastrointestinal-stromal-tumor-after-neoadjuvant-treatment
#12
Ang Lv, Honggang Qian, Hui Qiu, Jianhui Wu, Ying Li, Zhongwu Li, Chunyi Hao
This report aims to investigate the feasibility and outcomes of neoadjuvant imatinib mesylate (IM) administration followed by organ-preserving surgery (OPS) for patients with locally advanced duodenal gastrointestinal stromal tumor (GIST). Between 2012 and 2015, 10 consecutive patients with locally advanced duodenal GISTs were treated in Peking University Cancer Hospital. Multidisciplinary assessment was implemented, and pancreaticoduodenectomy (PD) was initially indicated as the most probable surgical procedure for all 10 patients...
August 28, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28839880/gastrointestinal-stromal-tumours-gists-an-insight-into-clinical-practice-with-review-of-literature
#13
M J McDonnell, S Punnoose, Y K S Viswanath, N J Wadd, A Dhar
BACKGROUND: Gastrointestinal stromal tumours (GISTs) are rare mesenchymal tumours of the gastrointestinal tract. We retrospectively reviewed the clinical management of all patients with GIST presenting to a regional multidisciplinary upper gastrointestinal cancer group in the north of England. METHODS: Clinical, pathological, immunohistochemical treatment strategies, follow-up and outcome data on all patients with GIST between 2007 and 2012 were reviewed. Tumours were categorised by risk according to the National Institutes of Health (NIH) and AFIP models...
January 2017: Frontline Gastroenterology
https://www.readbyqxmd.com/read/28825581/-gastrointestinal-stromal-tumor-and-renal-transplant
#14
Carina E Seculini Patiño, Aldo H Tabares, Maria V Laborie, Ana Diller
Gastrointestinal stromal tumor (GIST) accounts for nearly 1% of all gastrointestinal tumors. Its association with renal transplantation is not frequent. Approximately 95% of GIST show staining for CD177. DOG1 is a recently described monoclonal antibody that shows positivity even in the absence of CD177 staining. The diagnosis of GIST should be pursued because of the availability of very effective treatments with tyrosine-kinase inhibitors. Herein, we describe the case of a woman with renal transplant who presented a small bowel GIST and weak positivity for CD177, treated initially with surgery...
2017: Medicina
https://www.readbyqxmd.com/read/28825569/-laparoscopic-atypical-gastrectomy-in-the-treatment-of-gastric-gist-short-term-and-medium-term-outcomes
#15
Santiago Reimondez, Federico Moser, Pablo S Maldonado, Álvaro Alcaraz, Alejandro M Rossini, Lucio R Obeide
Gastrointestinal stromal tumors are the most common mesenchymal neoplasms of the gastrointestinal tract. Recently, many studies have addressed the laparoscopic management of these tumors. The aim of this study was to evaluate the safety and efficacy of laparoscopic atypical gastrectomy in the resolution of these neoplasms. In the period between January 2009 and December 2015, 24 patients with suspected gastric GIST less than 5 cm in size underwent surgery under this approach. Abscense of peritoneal and liver metastases and immunohistochemistry expression of CD117 antigen were considered as inclusion criteria...
2017: Medicina
https://www.readbyqxmd.com/read/28808875/ssat-state-of-the-art-conference-current-surgical-management-of-gastric-tumors
#16
Jeffrey A Norton, Teresa Kim, Joseph Kim, Martin D McCarter, Kaitlyn J Kelly, Joyce Wong, Jason K Sicklick
INTRODUCTION: The current era of gastric surgery is marked by low morbidity and mortality rates, innovative strategies to approach resections with a minimally invasive fashion or hyperthermic intraperitoneal chemotherapy (HIPEC), as well as improved understanding of the biology of sporadic and hereditary stromal, neuroendocrine, and epithelial malignancies. METHODS: In 2017, the Society for Surgery of the Alimentary Tract convened a State-of-the-Art Conference on Current Surgical Management of Gastric Tumors with both international experts and emerging leaders in the field of gastric surgery...
August 14, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28754403/-clinical-and-pathological-features-of-gastrointestinal-stromal-tumors-gist-in-a-single-institution-a-descriptive-study-and-review-of-the-literature
#17
Diego Flores-Funes, Ramón José Lirón-Ruiz, Carmen Victoria Pérez-Guarinos, Juan Gervasio Martín-Lorenzo, José Antonio Torralba-Martínez, Alberto Giménez-Bascuñana, María Asunción Chaves-Benito, José Luis Aguayo-Albasini
AIMS: This study was aimed to assess the main clinical, pathological and therapeutic characteristics of a cohort of gastrointestinal stromal tumors (GIST). MATERIAL AND METHOD: Observational study including 66 patients diagnosed with GIST admitted to our hospital between 2002 and 2015. Parameters related to medical history, clinical manifestations, medical and surgical treatment, histopathology, and morbi-mortality were studied. A review of the literature was included to correlate with the results...
July 25, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28746915/molecular-and-functional-characterization-of-a-new-3-end-kit-juxtamembrane-deletion-in-a-duodenal-gist-treated-with-neoadjuvant-imatinib
#18
Vittorio Perfetti, Erik Laurini, Suzana Aulić, Maurizio Fermeglia, Roberta Riboni, Marco Lucioni, Elena Dallera, Sara Delfanti, Luigi Pugliese, Francesco Saverio Latteri, Andrea Pietrabissa, Sabrina Pricl
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. GISTs express the receptor tyrosine kinase KIT, and the majority of GISTs present KIT gain-of-function mutations that cluster in the 5' end of the receptor juxtamembrane domain. On the other hand, little information is known about GISTs carrying mutations in the 3' end of the KIT juxtamembrane domain. Here we report and discuss a clinical case of localized duodenal GIST whose molecular characterization revealed the presence of a new 21 nucleotide/7 amino acid deletion in the 3' end of KIT juxtamembrane domain (Δ574-580)...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28740967/incidental-gastrointestinal-stromal-tumor-at-a-gastroscopic-polypectomy-specimen-a-case-report-and-review-of-literature
#19
Dursun Özgür Karakaş, Özgür Dandin, Ahmet Ziya Balta, Yavuz Özdemir, İsmail Yılmaz, İlker Sücüllü
Although gastrointestinal stromal tumors (GISTs) comprise less than 1% of all gastrointestinal (GI) tract tumors, they are the most common mesenchymal tumors of the GI tract. Gastrointestinal stromal tumors can occur anywhere along the GI tract, but the stomach and small intestine are the most frequently involved sites. Gastrointestinal stromal tumors are frequently asymptomatic, and one-third of all cases are found incidentally. Endoscopy, endoscopic ultrasonography, and computed tomography are useful tools in the diagnosis...
2017: Turk J Surg
https://www.readbyqxmd.com/read/28723770/initial-application-of-transanal-endoscopic-microsurgery-for-high-risk-lower-rectal-gastrointestinal-stromal-tumor-after-imatinib-mesylate-neoadjuvant-chemotherapy-a-case-report
#20
Qiaofei Liu, Guangxi Zhong, Weixun Zhou, Guole Lin
RATIONALE: The lower rectal gastrointestinal stromal tumor (GIST) is a rare entity and warrants special attentions because of the considerations of preserving of anal and urinal functions. Neoadjuvant therapy with imatinib mesylate (IM) has achieved great success in GIST, which potentially extends the applications of function-preserving minimally invasive surgical procedures. Transanal endoscopic microsurgery (TEM) is a well-developed minimally invasive technique for benign tumors in lower rectum...
July 2017: Medicine (Baltimore)
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