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Gastric GIST

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https://www.readbyqxmd.com/read/28433494/patterns-of-care-and-clinical-outcomes-in-primary-oesophageal-gastrointestinal-stromal-tumours-gist-a-retrospective-study-of-the-french-sarcoma-group-fsg
#1
F Duffaud, P Meeus, F Bertucci, J-B Delhorme, E Stoeckle, N Isambert, E Bompas, J Gagniere, O Bouché, M Toulmonde, S Salas, J-Y Blay, S Bonvalot
BACKGROUND: Oesophageal GIST (ESOGIST) are very rare tumours requiring special consideration regarding diagnosis, surgical management, and perioperative treatment. METHODS: A retrospective study was conducted across 9 centres in the French Sarcoma Group (FSG) to characterize all patients in the years 2000-2014. RESULTS: Seventeen patients (pts) with primary localized ESOGIST were identified, with median age 69 years (36-81) and 11 females...
April 1, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28424911/long-term-outcomes-of-endoscopic-resection-of-gastric-gists
#2
Changji Yu, Guobin Liao, Chaoqiang Fan, Jing Yu, Xubiao Nie, Shiming Yang, Jianying Bai
OBJECTIVE: Although the endoscopic treatment of gastric stromal tumors is a recently accepted therapy, the long-term outcomes of this approach remain unknown. The aims of this study were to assess the long-term effectiveness and safety of endoscopic resection for gastric GISTs. METHODS: A total of 60 consecutive patients undergoing endoscopic resection of gastric GISTs were enrolled in a retrospective single-center study. Clinical data, perioperative complications, histopathologic characteristics of the tumors, and long-term outcomes were recorded...
April 19, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28405147/endosonographic-surveillance-of-1-3-cm-gastric-submucosal-tumors-originating-from-muscularis-propria
#3
Ming-Luen Hu, Keng-Liang Wu, Chi-Sin Changchien, Seng-Kee Chuah, Yi-Chun Chiu
AIM: To observe the natural course of 1-3 cm gastric submucosal tumors originating from the muscularis propria (SMTMPs). METHODS: By reviewing the computerized medical records over a period of 14 years (2000-2013), patients with 1-3 cm gastric SMTMPs who underwent at least two endoscopic ultrasound (EUS) examinations were enrolled. Tumor progression was defined as a ≥ 1.2 times enlargement in tumor diameter observed during EUS surveillance. All patients were divided into stationary and progressive subgroups and further analyzed...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28398518/epigenetic-regulation-of-cd133-in-gastrointestinal-stromal-tumors
#4
Helene Geddert, Alexander Braun, Claudia Kayser, Arno Dimmler, Gerhard Faller, Abbas Agaimy, Florian Haller, Evgeny A Moskalev
Objectives: This study ascertained the regulation of the stem cell marker CD133 and its potential applicability for prognostication of gastrointestinal stromal tumors (GISTs). Methods: A total of 95 resected GISTs were included in the study. CD133 protein expression was assessed immunohistochemically on tissue microarrays. Methylation percentage was quantified by pyrosequencing. Gene expression in cell lines GIST48b and GIST882 upon treatment with DNA demethylation agent 5-aza-2'-deoxycytidine was analyzed by quantitative polymerase chain reaction...
April 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28395384/laparoscopic-and-luminal-endoscopic-cooperative-surgery-can-be-a-standard-treatment-for-submucosal-tumors-of-the-stomach-a-retrospective-multicenter-study
#5
Tatsuo Matsuda, Souya Nunobe, Toshiyuki Kosuga, Hiroshi Kawahira, Noriyuki Inaki, Shuji Kitashiro, Nobutsugu Abe, Isao Miyashiro, Sayaka Nagao, Masahiko Nishizaki, Naoki Hiki
Background and study aims We have developed a combined laparoscopic and luminal endoscopic surgery technique for resection of gastric submucosal tumors (SMTs) that can be performed without excessive resection of the stomach. In a multicenter retrospective study we aimed to evaluate the feasibility and safety of laparoscopic and endoscopic cooperative surgery (LECS) for gastric SMT resection. Patients and methods Between October 2007 and December 2011, 126 patients with gastric SMTs underwent LECS at 8 institutions...
April 10, 2017: Endoscopy
https://www.readbyqxmd.com/read/28383420/can-laparoscopic-surgery-be-applied-in-gastric-gastrointestinal-stromal-tumors-located-in-unfavorable-sites-a-study-based-on-the-nccn-guidelines
#6
Chang-Ming Huang, Qing-Feng Chen, Jian-Xian Lin, Mi Lin, Chao-Hui Zheng, Ping Li, Jian-Wei Xie, Jia-Bin Wang, Jun Lu, Qi-Yue Chen, Long-Long Cao, Ru-Hong Tu
This article investigated the feasibility of laparoscopic surgery in unfavorable site gastric gastrointestinal stromal tumors (GISTs).We identified 214 patients who underwent primary gastric GIST resection at our institution (January 2006-December 2014) from a prospectively collected database. These patients were divided into a Favorable group (140 cases) and an Unfavorable group (74 cases) according to the 2014 version of the National Comprehensive Cancer Network Clinical Guidelines (NCCN guidelines).The wedge resection rate of the Favorable group was higher than that of the Unfavorable group, and most procedures were performed laparoscopically (P < 0...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28374258/a-novel-grasp-and-loop-closure-method-for-defect-closure-after-endoscopic-full-thickness-resection-with-video
#7
Jian-Wei Hu, Lei Ge, Ping-Hong Zhou, Quan-Lin Li, Yi-Qun Zhang, Wei-Feng Chen, Tao Chen, Li-Qing Yao, Mei-Dong Xu, Yuan Chu
BACKGROUND: Endoscopic full-thickness resection (EFTR) is a minimally invasive method for en bloc resection of gastrointestinal (GI) lesions originating from the muscularis propria layer. Successful closure of the wall defect is a critical step. OBJECTIVE: The aim of this study was to evaluate the feasibility and efficacy of a novel and simplified endoscopic grasp-and-loop (GAL) closure method using an endo-loop assisted with grasping forceps for defect closure...
April 3, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28374257/endoscopic-submucosal-dissection-for-gastric-gastrointestinal-stromal-tumors-a-retrospective-cohort-study
#8
Wei An, Ping-Bo Sun, Jie Gao, Fei Jiang, Feng Liu, Jie Chen, Dong Wang, Zhao-Shen Li, Xin-Gang Shi
BACKGROUND AND AIM: Endoscopic submucosal dissection (ESD) has been used to remove submucosal tumors. However, with regard to the potential malignant behavior of gastrointestinal stromal tumors (GISTs), whether ESD can be recommended for treatment is still controversial. Therefore, we evaluated the efficacy and safety of ESD for removal of GISTs in the muscularis propria (MP) layer and to assess the possible risk factors for a gastric-wall defect (GWD). METHODS: For 168 GISTs located in the MP layer from 168 consecutive patients, the baseline information, complications, and therapeutic outcomes were recorded...
April 3, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28372349/perivascular-epithelioid-cell-tumor-in-the-stomach
#9
Sun Ah Shin, Jiwoon Choi, Kyung Chul Moon, Woo Ho Kim
Perivascular epithelioid cell tumors or PEComas can arise in any location in the body. However, a limited number of cases of gastric PEComa have been reported. We present two cases of gastric PEComas. The first case involved a 62-year-old woman who presented with a 4.2 cm gastric subepithelial mass in the prepyloric antrum, and the second case involved a 67-year-old man with a 5.0 cm mass slightly below the gastroesophageal junction. Microscopic examination revealed that both tumors were composed of perivascular epithelioid cells that were immunoreactive for melanocytic and smooth muscle markers...
April 4, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28356974/gastrointestinal-stromal-tumor-with-a-pdgfra-mutation-masquerading-as-gastric-plexiform-fibromyxoma-a-comparative-clinicopathological-study-of-two-cases
#10
Jun Zhou, Jingjing Xu, Guozhong Jiang, Yihui Ma, Jingwen Qi, Wencai Li, Dandan Zhang
Gastric plexiform fibromyxoma (PF) is a rare mesenchymal tumor with a histologically distinctive multinodular pattern, dissimilar to conventional gastrointestinal stromal tumor (GIST). The current study presents one case of gastric PF, and one case of GIST with a platelet-derived growth factor receptor α (PDGFRA) mutation mimicking PF, and discusses their differential diagnoses. The two patients were a 51-year-old male with PF and a 47-year-old female with GIST, each of whom presented with an occupying lesion in the gastric antrum...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28349318/laparoscopic-versus-open-resection-for-gastric-gastrointestinal-stromal-tumors-gists-a-size-location-matched-case-control-study
#11
Jun-Lin Chi, Mao Xu, Ming-Ran Zhang, Yuan Li, Zong-Guang Zhou
BACKGROUND: Laparoscopic resection for gastric gastrointestinal stromal tumors (GISTs) is technically feasible, but the long-term effect remains uncertain. This study aims to compare the long-term oncologic outcomes of laparoscopic versus open resection of GISTs by larger cases based on tumor size-location-matched study. METHODS: Between 2006 and 2015, 63 consecutive patients with a primary gastric GIST undergoing laparoscopic resection were enrolled in and matched (1:1) to patients undergoing open resection by tumor size and location...
March 27, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28344749/heavily-calcified-gastrointestinal-stromal-tumors-pathophysiology-and-implications-of-a-rare-clinicopathologic-entity
#12
Massimiliano Salati, Giulia Orsi, Luca Reggiani Bonetti, Fabrizio Di Benedetto, Giuseppe Longo, Stefano Cascinu
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract, and are characterized by a broad spectrum of clinical, histological and molecular features at presentation. Although focal and scattered calcifications are not uncommon within the primary tumor mass, heavy calcification within a GIST is rarely described in the literature and the clinical-biological meaning of this feature remains unclear. Cases with such an atypical presentation are challenging and may be associated with diagnostic pitfalls...
March 15, 2017: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28321172/gastrointestinal-stromal-tumor-of-the-stomach-with-axillary-lymph-node-metastasis-a-case-report
#13
Naoki Kubo, Nobumichi Takeuchi
Gastrointestinal stromal tumors (GISTs) are the most common type of gastrointestinal mesenchymal tumors, although metastasis to the perigastric lymph nodes is relatively rare, compared with liver or peritoneal metastasis. In this report, we describe a case of stomach GIST with a solitary simultaneous metastasis in the left axillary lymph node. A 68-year-old man was diagnosed with a large upper-stomach GIST, and computed tomography and positron emission tomography revealed masses in the left axilla and right mediastinum...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28288036/gist-manifesting-as-a-retroperitoneal-tumor-clinicopathologic-immunohistochemical-and-molecular-genetic-study-of-112-cases
#14
Markku Miettinen, Anna Felisiak-Golabek, Zengfeng Wang, Shingo Inaguma, Jerzy Lasota
Most gastrointestinal stromal tumors (GISTs) occur in the tubular gastrointestinal (GI) tract, but some present apparently outside the GI tract. In this study, we analyzed 112 GISTs located in the retroperitoneum. These tumors occurred in 55 women and 57 men with a median age of 65 years (range: 21 to 89 y). On the basis of clinically or histologically detected connections to GI tract, 15 tumors were considered likely of gastric, 9 duodenal, and 13 of small intestinal origin. The remaining cases were categorized by location as peripancreatic (n=25), pelvic (n=11), mesenteric (n=4), and of unspecified/miscellaneous sites (n=35)...
May 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28243730/-gastrointestinal-stromal-tumors-of-the-stomach-and-precursor-lesions
#15
E Wardelmann, W Hartmann, M Trautmann, J Sperveslage, S Elges, E Hekeler, S Huss
Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors in the gastrointestinal tract although they are much less frequent than epithelial tumors. In more than 60% of cases they occur in the stomach. Especially small lesions measuring ≤1 cm in diameter, so-called microscopic GIST can occur multifocally, frequently in the proximal stomach wall and sometimes as an incidental finding in a gastrectomy specimen resected for gastric cancer. The multicentricity of GIST alone is not proof of a metastatic behavior or a syndromal or hereditary disease...
February 27, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28240510/gastric-cancer-and-gastrointestinal-stromal-tumors-could-be-causes-of-non-helicobacter-pylori-non-nsaids-peptic-ulcers-in-thailand
#16
Pattama Kiatpapan, Ratha korn Vilaichone, Peranart Chotivitayatarakorn, Varocha Mahachai
Background and aim: H. pylori and nonsteroidal anti-inflammatory drugs (NSAIDs) remain the major causes of peptic ulcer disease. Nevertheless, non- H. pylori non-NSAIDs peptic ulcers or idiopathic peptic ulcer disease (IPUD) constitute a growing problem associated with many complications. Gastric cancer and gastrointestinal stromal tumor (GIST) have also been reported as a cause of IPUD. This study was aimed to investigate prevalence and clinical characteristics of IPUD in Thailand. Materials and Methods: Clinical information, histological features, endoscopic findings, history of H...
January 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28220962/long-term-outcomes-of-endoscopic-submucosal-dissection-versus-laparoscopic-resection-for-gastric-stromal-tumors-less-than-2%C3%A2-cm
#17
Yan Meng, Wei Li, Lu Han, Aimin Li, Qun Yan, Qiuhua Lai, Side Liu, Yue Li
BACKGROUND & AIMS: Laparoscopic resection (LAP) and endoscopic submucosal dissection (ESD) of small gastrointestinal stromal tumors (GISTs) has been reported by large amount of literature. However, the management of small GISTs remains controversial. This study evaluated the efficacy of ESD and LAP for small gastric GISTs and provided long-term outcomes of the two methods. METHODS: A total of 126 patients who underwent ESD or LAP for small gastric GISTs between 2009 and 2016 were retrospectively collected from medical records in our hospital and we made telephone follow-up about recurrence rate...
February 21, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28206938/a-review-of-sleeve-gastrectomy-specimen-histopathology
#18
Luke A Kinsinger, James C Garber, Oliver Whipple
With the increasing popularity of sleeve gastrectomy, many stomach specimens are being evaluated. Understanding the significance and treatment for unexpected pathology is important. This study examines the incidence of relevant histopathology of sleeve gastrectomy specimens. It evaluates previous data for each histopathology and provides recommendations for treatment. In this study, a retrospective review was performed for 241 patients who underwent sleeve gastrectomy from 2009 to 2014 at a single institution...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28203166/gastrointestinal-stromal-tumour-with-synchronous-bone-metastases-a-case-report-and-literature-review
#19
Philippe Rochigneux, Lénaig Mescam-Mancini, Delphine Perrot, Erwan Bories, Laurence Moureau-Zabotto, Anthony Sarran, Jérôme Guiramand, François Bertucci
Gastrointestinal stromal tumours (GISTs) are mesenchymal tumours of the digestive tract, derived from Cajal interstitial cells. Bone metastases are very rare, and there is no consensus regarding their treatment. Here, we present the unusual case of a 66-year-old man with a gastric GIST with synchronous bone and liver metastases, fully documented at the pathological and molecular levels with a KIT exon 11 mutation. After 9 months of imatinib, the scanner showed a 33% partial response of target lesions. We also review the literature and describe the characteristics, treatment, and outcome of all cases previously reported...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28161699/appropriate-follow-up-strategies-for-gastrointestinal-stromal-tumor-patients-based-on-the-analysis-of-recurrent-interval-and-patterns
#20
Noriko Wada, Tsuyoshi Takahashi, Yukinori Kurokawa, Kiyokazu Nakajima, Toru Masuzawa, Rie Nakatsuka, Junji Kawada, Toshirou Nishida, Yutaka Kimura, Kouji Tanaka, Yasuhiro Miyazaki, Tomoki Makino, Makoto Yamasaki, Shuji Takiguchi, Masaki Mori, Yuichiro Doki
BACKGROUND/AIMS: Previous studies have proposed risk classifications for patients with gastrointestinal stromal tumor (GIST) after resection and have contributed to the prediction of its prognosis. However, optimal postoperative surveillance has not yet been established. METHODS: We retrospectively analyzed data from 115 GIST patients who experienced recurrence after complete resection. The relationships between clinicopathological characteristics and the first recurrence sites, or time to recurrence (TTR), were investigated...
2017: Digestion
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