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Gastrointestinal stromal tumor

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https://www.readbyqxmd.com/read/28440971/prognostic-factors-for-large-symptomatic-gists-a-pragmatic-study-of-experiences-from-a-university-hospital-over-10-years
#1
Supatcha Prasertcharoensuk, Punnapud Thanapongpornthana, Vajarabhongsa Bhudhisawasdi, Ake Pugkhem, Kriangsak Jenwitheesuk, Aumkhae Sookprasert, Chawalit Pairojkul
Background: Gastrointestinal stromal tumors (GISTs), which are mesenchymal neoplasms in the gastrointestinal (GI) tract account for 0.2% of all GI tumors. Several factors have been reported (mostly from studies conducted in Western countries) to be associated with survival in GISTs cases such as tumor site, staging, and tumor size. We conducted a pragmatic study, looking at a 10-year period, aimed at understanding the prognostic factors related to GISTs in a university hospital. The study population consisted of patients with large symptomatic GISTs...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28439494/how-best-to-manage-gastrointestinal-stromal-tumor
#2
REVIEW
Gandhi Lanke, Jeffrey H Lee
Gastrointestinal stromal tumors (GISTs) are rare but most common nonepithelial tumor of gastrointestinal tract. They are often found incidentally on computed tomography and endoscopic investigations. Increasing knowledge of the pathogenesis of GISTs and the advent of tyrosine kinase inhibitors revolutionized the management of GISTs. The newer advanced endoscopic techniques have challenged the conventional surgery although the true efficacy and safety of endoscopic approach is not clear at this time. This review article focuses on pathogenesis, diagnosis and management of GISTs...
April 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28429313/gradually-shrinking-intra-abdominal-desmoid-tumor-derived-from-the-stomach-in-a-young-boy-a-case-report
#3
Kazushi Miyata, Masahide Fukaya, Masato Nagino
BACKGROUND: Intra-abdominal desmoid tumors, particularly those derived from the stomach, are rare. Such tumors are associated with a history of familial adenomatous polyposis (FAP), trauma, or surgical procedures in general. In addition, spontaneous shrinking of an intra-abdominal desmoid tumor is rarer. And desmoid tumors most commonly arise during the fourth decade of life. CASE PRESENTATION: A 17-year-old boy with lower abdominal pain was diagnosed with a gastrointestinal stromal tumor (GIST) or a hematoma at a local hospital...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28426120/a-phase-ii-study-of-a-human-anti-pdgfr%C3%AE-monoclonal-antibody-olaratumab-imc-3g3-in-previously-treated-patients-with-metastatic-gastrointestinal-stromal-tumors
#4
A J Wagner, H Kindler, H Gelderblom, P Schöffski, S Bauer, P Hohenberger, H-G Kopp, J A Lopez-Martin, M Peeters, P Reichardt, A Qin, J Nippgen, R L Ilaria, P Rutkowski
Background: This study evaluated tumor response to olaratumab (an anti-PDGFRα monoclonal antibody) in previously treated patients with metastatic gastrointestinal stromal tumor (GIST) with or without PDGFRα mutations (cohorts 1 and 2, respectively). Patients and methods: Patients received olaratumab 20 mg/kg intravenously every 14 days until disease progression, death, or intolerable toxicity occurred. Outcome measures were 12-week tumor response, progression-free survival (PFS), overall survival (OS), and safety...
March 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28424409/clinical-genomic-profiling-to-identify-actionable-alterations-for-investigational-therapies-in-patients-with-diverse-sarcomas
#5
Roman Groisberg, David S Hong, Vijaykumar Holla, Filip Janku, Sarina Piha-Paul, Vinod Ravi, Robert Benjamin, Shreyas Kumar Patel, Neeta Somaiah, Anthony Conley, Siraj M Ali, Alexa B Schrock, Jeffrey S Ross, Philip J Stephens, Vincent A Miller, Shiraj Sen, Cynthia Herzog, Funda Meric-Bernstam, Vivek Subbiah
BACKGROUND: There are currently no United States Food and Drug Administration approved molecularly matched therapies for sarcomas except gastrointestinal stromal tumors. Complicating this is the extreme diversity, heterogeneity, and rarity of these neoplasms. Few therapeutic options exist for relapsed and refractory sarcomas. In clinical practice many oncologists refer patients for genomic profiling hoping for guidance on treatment options after standard therapy. However, a systematic analysis of actionable mutations has yet to be completed...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423367/imatinib-dose-escalation-versus-sunitinib-as-a-second-line-treatment-against-advanced-gastrointestinal-stromal-tumors-a-nationwide-population-based-cohort-study
#6
Jun-Te Hsu, Puo-Hsien Le, Chang-Fu Kuo, Meng-Jiun Chiou, Chia-Jung Kuo, Tsung-Hsing Chen, Chun-Jung Lin, Jen-Shi Chen, Huang-Pin Yu, Chun-Nan Yeh, Yi-Yin Jan, Ta-Sen Yeh
BACKGROUND: Although treatment with imatinib in advanced gastrointestinal stromal tumor (GIST) patients has led to significant clinical benefits, the disease will eventually progress due to imatinib resistance. Treatment options after failure of first-line imatinib include imatinib dose escalation or shifting to sunitinib. However, there is no large-scale study to compare the efficacy difference between these two treatment strategies or the role of surgery. RESULTS: This study recruited 521 advanced GIST patients including 246, 125, and 150 placed in groups 1, 2, and 3, respectively...
April 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421549/extragastrointestinal-stromal-tumor-of-the-inferior-vena-cava-a-case-report
#7
Kazuhide Ko, Kimiyoshi Shimanuki, Wataru Sakamoto, Keisuke Hara, Eiji Uchida
Here, we present a case report of a 60-year-old female with a 5-cm tumor in the inferior vena cava (IVC) that was positive for c-kit and CD34 expression. Thus, we considered this to be an extragastrointestinal c-kit-positive stromal tumor (EGIST). To the best of our knowledge, no primary EGISTs of the IVC have been described thus far. The potential occurrence of EGISTs outside the tubular gastrointestinal tract should be recognized in the differential diagnosis of tumors of the great vessels. Thus, we concluded that primary c-kit-positive stromal tumors of the IVC do indeed occur...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28421351/characteristics-and-prognosis-of-rectal-gastrointestinal-stromal-tumors-an-analysis-of-registry-data
#8
Masayoshi Yasui, Toshimasa Tsujinaka, Masaki Mori, Tsuyoshi Takahashi, Yasuo Nakashima, Toshirou Nishida
PURPOSE: Rectal gastrointestinal stromal tumors (GISTs) are rare. Accordingly, their clinical features are not well-documented and optimal treatment has not been established. The objective of this study is to clarify the rates and patterns of recurrence after surgical resection of rectal GISTs, with a focus on outcomes and therapeutic modalities. METHODS: The registry was designed to collect data on rectal GISTs recorded between January, 2003 and December, 2007 at 40 participating institutions of the Kinki GIST Study Group...
April 18, 2017: Surgery Today
https://www.readbyqxmd.com/read/28420839/solitary-gastric-metastasis-from-a-stage-ia-serous-ovarian-carcinoma-a-case-report-with-literature-review
#9
Keishi Mizuguchi, Hiroshi Minato, Isao Yoshida, Junpei Iwadare, Kayo Kayahashi, Yuki Mitani, Kazuyoshi Watanabe
Gastric metastasis from ovarian cancer is exceptionally rare and generally occurs in advanced stages. A 71-year-old woman presented with a solitary gastric submucosal mass 8 years after the diagnosis of a stage IA ovarian serous adenocarcinoma. Endoscopy showed a tumor covered with normal gastric mucosa. Initially, a gastrointestinal stromal tumor was suspected, but biopsy revealed a histology of invasive micropapillary carcinoma, similar to the histological findings of the previously resected ovarian tumor...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28418346/extra-gastrointestinal-stromal-tumor-of-prostate
#10
Demet Etit, Haldun Kar, Neşe Ekinci, Ahmet Emre Yenipazar, Fulya Çakalağaoğlu
BACKGROUND: Extra-gastrointestinal stromal tumor is defined as a mesenchymal neoplasm arising from soft tissues outside the gastrointestinal tract. Prostatic extra-gastrointestinal stromal tumor has rarely been noted. CASE REPORT: A 56 year-old man presented with pain in the anal region. A digital rectal examination revealed that the prostate was markedly enlarged with a smooth, bulging surface. Computerized tomography images showed a 6 cm heterogeneous, infiltrative tumor within the prostate gland extending to the trigon of the bladder, left seminal vesicle and rectum...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28415678/genetic-progression-in-gastrointestinal-stromal-tumors-mechanisms-and-molecular-interventions
#11
REVIEW
Ke Li, Haibo Cheng, Zhang Li, Yuzhi Pang, Xiaona Jia, Feifei Xie, Guohong Hu, Qingping Cai, Yuexiang Wang
Gastrointestinal stromal tumors (GISTs) are the most common sarcomas in humans. Constitutively activating mutations in the KIT or PDGFRA receptor tyrosine kinases are the initiating oncogenic events. Most metastatic GISTs respond dramatically to therapies with KIT/PDGFRA inhibitors. Asymptomatic and mitotically-inactive KIT/PDGFRA-mutant "microGISTs" are found in one third of adults, but most of these small tumors never progress to malignancy, underscoring that a progression of oncogenic mutations is required...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412996/laparoscopic-surgery-versus-open-resection-in-patients-with-gastrointestinal-stromal-tumors-an-updated-systematic-review-and-meta-analysis
#12
Hanchu Xiong, Ji Wang, Yunlu Jia, Chenyang Ye, Yi Lu, Cong Chen, Jianguo Shen, Yongxia Chen, Wenhe Zhao, Linbo Wang, Jichun Zhou
PURPOSES: The contemporary surgery has reported the safety of laparoscopic surgery (LAP) for patients with gastrointestinal stromal tumors (GISTs). However, its use is still debated due to suspicion of the oncologic equivalence to open surgery (OPEN). We conducted a systematic review and meta-analysis of updated original articles to investigate the short- and long-term clinical outcomes of LAP compared with OPEN for GISTs. METHODS: A systematic search was performed in PubMed, Embase, Web of Science, Cochrane Library and CNKI...
April 5, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28405147/endosonographic-surveillance-of-1-3-cm-gastric-submucosal-tumors-originating-from-muscularis-propria
#13
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/28402935/mirna-profiling-of-gastrointestinal-stromal-tumors-by-next-generation-sequencing
#14
Ugne Gyvyte, Simonas Juzenas, Violeta Salteniene, Juozas Kupcinskas, Lina Poskiene, Laimutis Kucinskas, Sonata Jarmalaite, Kristina Stuopelyte, Ruta Steponaitiene, Georg Hemmrich-Stanisak, Matthias Hübenthal, Alexander Link, Sabine Franke, Andre Franke, Dalia Pangonyte, Vaiva Lesauskaite, Limas Kupcinskas, Jurgita Skieceviciene
Deregulation of miRNAs has been observed virtually in all major types of cancer, whereas the miRNA signature in GIST is not well characterized yet. In this study the first high-throughput miRNA profiling of 15 paired GIST and adjacent normal tissue samples was performed using small RNA-seq approach and differentially expressed miRNAs as well as isomiRNAs were defined. Highly significantly deregulated miRNAs were selected for validation by Taq-Man low-density array in replication group of 40 paired samples. Validated miRNAs were further subjected to enrichment analysis, which revealed significantly enriched KEGG pathways in the main GIST associated pathways...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28399894/preoperative-imatinib-mesylate-im-for-huge-gastrointestinal-stromal-tumors-gist
#15
Sumin Tang, Yuan Yin, Chaoyong Shen, Jiaju Chen, Xiaonan Yin, Bo Zhang, Yuqin Yao, Jinliang Yang, Zhixin Chen
BACKGROUND: Preoperative imatinib mesylate (IM) treatment has not yet been standardized. Here, we aim to further explore such therapy on patients with gastrointestinal stromal tumors (GIST) retrospectively. METHODS: Patients experiencing preoperative IM were identified from January 2009 to February 2015. RESULTS: A total of 28 GIST patients were identified. The patients received preoperative IM treatment for a median length of 13.5 months, ranging from 5 to 37 months...
April 11, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28398518/epigenetic-regulation-of-cd133-in-gastrointestinal-stromal-tumors
#16
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
#17
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/28392052/gastric-glomangioma-differential-diagnosis-of-gastrointestinal-stromal-tumors
#18
E Rosales-López, J C Salceda-Otero, D Angulo-Molina, J A Posada-Torres, M G Canchola-Aguilar, D Lozoya-Gonzalez
No abstract text is available yet for this article.
April 6, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28391172/large-bronchogenic-cyst-of-stomach-a-case-report
#19
Amine Chhaidar, Houssem Ammar, Nihed Abdessayed, Mohamed Azzaza, Rahul Gupta, Nefis Abdennaceur, Ahlem Bdioui, Moncef Mokni, Ali Ben Ali
INTRODUCTION: Bronchogenic cysts are congenital cysts arising as an abnormal budding from primitive tracheobronchial tree. They are lined by pseudostratified columnar or cuboidal ciliated epithelium and contain smooth muscle fibers, submucosal bronchial glands and/or cartilage. They are most frequently located in the mediastinum or the lung parenchyma. Intramural occurrence of bronchogenic cyst in the gastric wall is very rare. PRESENTATION OF CASE: We present a case of 65-year-old lady with a 7×8cm lesion in the gastric cardia suspicious of gastrointestinal stromal tumor...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28386914/laparoscopy-assisted-full-thickness-resection-of-the-duodenum-for-patients-with-gastrointestinal-stromal-tumor-with-ulceration
#20
Nobutsugu Abe, Yoshikazu Hashimoto, Hirohisa Takeuchi, Atsuko Ohki, Gen Nagao, Yutaka Suzuki, Tadahiko Masaki, Toshiyuki Mori, Masanori Sugiyama
INTRODUCTION: Gastrointestinal stromal tumor (GIST) with ulceration may potentially disseminate into the peritoneal cavity after laparoscopic local wedge resection (full-thickness resection) when the intestinal wall is opened under the aeroperitoneum. To prevent this intraoperative tumor seeding, we developed laparoscopy-assisted full-thickness resection (LAFTR) of the duodenum for GIST with ulceration. Here, we present the preliminary results of LAFTR. METHODS: Three patients with duodenal GIST with ulceration underwent LAFTR...
April 7, 2017: Asian Journal of Endoscopic Surgery
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