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Gastric GIST

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https://www.readbyqxmd.com/read/28321172/gastrointestinal-stromal-tumor-of-the-stomach-with-axillary-lymph-node-metastasis-a-case-report
#1
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
#2
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)...
March 10, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28243730/-gastrointestinal-stromal-tumors-of-the-stomach-and-precursor-lesions
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28147326/clinicopathological-features-and-prognosis-of-mesenteric-gastrointestinal-stromal-tumor-evaluation-of-a-pooled-case-series
#9
Fan Feng, Bin Feng, Shushang Liu, Zhen Liu, Guanghui Xu, Man Guo, Xiao Lian, Daiming Fan, Hongwei Zhang
Background Due to the extremely rare incidence, data of clinicopathological features and prognosis of mesenteric gastrointestinal stromal tumors (GISTs) are limited. Therefore, the aim of the present study was to investigate the clinicopathological features and prognosis of mesenteric GISTs.Patients and Methods Mesenteric GISTs cases were obtained from our center and from case reports and clinical series extracted from MEDLINE. Clinicopathological features and survivals were analyzed.Results A total of 114 mesenteric GISTs were enrolled in present study...
January 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28133332/-multidisciplinary-treatment-for-high-risk-gist-of-the-stomach
#10
Tomo Ishida, Shigeyuki Tamura, Atsushi Takeno, Kohei Murakami, Yohei Nose, Ryota Mori, Yasuo Oneda, Ryuichi Kuwahara, Takuya Sakamoto, Atsushi Naito, Yoshiteru Katsura, Yoshiaki Ohmura, Yoshinori Kagawa, Yutaka Takeda, Takeshi Kato
A 59-year-old man underwent total gastrectomy(with D2 dissection)and cholecystectomy for gastric cancer and a submucosal tumor of the stomach. The specimen was immunohistochemically positive for c-kit, the Ki-67 label index was 10%, and the mitotic count was 20/HPF. Finally, the patient was diagnosed with high-risk gastrointestinal stromal cancer with normal type gastric cancer. After discharge from hospital, we started administration of TS-1 as adjuvant therapy for the gastric cancer. As multiple recurrences of the GIST in the abdomen developed, the patient underwent 3 radical local resections...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133329/-a-case-of-a-laparoscopically-resected-gastrointestinal-stromal-tumor-of-the-stomach
#11
Tomoki Hariu, Yoshihito Nako, Shigeki Yamasaki, Takashi Kitade, Motomi Wakasa, Teruhisa Sonoyama
During treatment for sigmoid colon diverticulitis, a 72-year-old man underwent abdominal computed tomography, which revealed a gastric tumor that was approximately 40mm in diameter. He then underwent a detailed examination after the remission of diverticulitis. The gastric mucosa was found to be unremarkable on gastrointestinal endoscopy. On ultrasonic endoscopy, however, a hypoechoic mass of approximately 40mm in diameter was detected in the fourth layer of the gastric fornix and was believed to be a gastric submucosal tumor(SMT)...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133274/-resection-of-a-huge-gastrointestinal-stromal-tumor-of-the-stomach-following-neoadjuvant-chemotherapy-with-imatinib
#12
Yoshihiro Sato, Hideaki Karasawa, Takeshi Aoki, Hirofumi Imoto, Naoki Tanaka, Kazuhiro Watanabe, Tomoya Abe, Munenori Nagao, Shinobu Ohnuma, Hiroaki Musha, Masanobu Takahashi, Fuyuhiko Motoi, Takeshi Naitoh, Chikashi Ishioka, Michiaki Unno
We report a case of a huge gastric gastrointestinal stromal tumor(GIST)that was safely resected followingpreoperative imatinib therapy. A 72-year-old woman was hospitalized with severe abdominal distension. Computed tomography revealed a 27×17 cm tumor in the left upper abdominal cavity. The patient was diagnosed with high risk GIST by EUS-FNA. We initiated preoperative adjuvant chemotherapy with imatinib to achieve a reduction of operative risks and functional preservation. After 6 months of chemotherapy, CT showed a reduction in the tumor size and the patient underwent partial gastrectomy and partial resection of the diaphragm...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133239/-a-case-of-small-intestinal-gastrointestinal-stromal-tumor-gist-with-synchronous-colonic-cancer-and-gastric-cancer-at-a-different-time
#13
Yukika Tsukamoto, Hisami Oshima, Takashi Katsumori, Hiromitsu Hamaguchi, Shinichi Yamamoto, Tomohiro Iwanaga, Susumu Ohkawara
The patient was a 70-year-old woman with a gastrointestinalstromaltumor (GIST)of the small intestine and synchronous colonic cancer, who underwent laparoscopic right colectomy and resection of the small intestine. We started imatinib therapy because GIST belongs to a high-risk group, according to the modified Fletcher classification. Gastric cancer was diagnosed 2 years after the start of imatinib therapy. Only 4 of the 12 GIST cases seen at our institution over the last 5 years were complicated by another cancer...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28132787/safety-and-efficacy-of-laparoscopic-wedge-gastrectomy-for-large-gastrointestinal-stromal-tumors
#14
M Milone, U Elmore, M Musella, P Parise, M C Zotti, U Bracale, K Di Lauro, M Manigrasso, F Milone, R Rosati
BACKGROUND: Although the feasibility of minimally invasive resection of small gastric GISTs is well established, less is known about safety and efficacy of laparoscopic surgery for large tumors. METHODS: A retrospective analysis was performed, using a prospectively maintained comprehensive database. Patients were divided into two groups according to tumor size: Case group with tumors > 5 cm and control group with tumors <5 cm. Hospital charts were reviewed, and various outcome measures recorded, including operative time, estimated operative blood loss, post-operative leak, stasis, infection and recurrence...
January 18, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28098915/somatic-mutational-spectrum-analysis-in-a-prospective-series-of-104-gastrointestinal-stromal-tumors
#15
David Guenat, Olivier Deroo, Sandrine Magnin, Loïc Chaigneau, Franck Monnien, Christophe Borg, Christiane Mougin, Jean-François Emile, Jean-Luc Prétet
Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors distinguished by driver mutations in proto-oncogenes KIT or PDGFRA in 85-90% of cases. These mutations have been linked to the response to imatinib, a multikinase inhibitor, and have independent prognostic impact. Here, we describe the prospective study of the molecular characteristics of 104 GISTs from French adult patients analyzed routinely through the National Hospital Program of Molecular Cancer Diagnosis. All patients with GISTs diagnosed at the University Hospital of Besançon between August 2005 and October 2014 were prospectively included in the present study...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28079762/robotic-versus-laparoscopic-gastric-resection-for-primary-gastrointestinal-stromal-tumors-5-cm-a-size-matched-and-location-matched-comparison
#16
Nicola de'Angelis, Pietro Genova, Aurelien Amiot, Cecile Charpy, Mara Disabato, Ajay P Belgaumkar, Ali Chahrour, Francois Legou, Daniel Azoulay, Francesco Brunetti
This study compared robotic (RR) and laparoscopic resection (LR) for primary gastrointestinal stromal tumors (GISTs) of the stomach >5 cm. Twelve consecutive patients who underwent RR from 2012 to 2015 were matched for tumor size and location with 24 patients who underwent LR from 2000 to 2012. The median tumor size was 7.1 cm (range, 5.5 to 11.5). GISTs were resected by wedge resection (91.7%) or distal gastrectomy. The median RR operative time was longer than that of LR (162.5 vs. 130 min, respectively; P=0...
February 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28077094/the-cut-off-value-of-tumor-size-and-appropriate-timing-of-follow-up-for-management-of-minimal-eus-suspected-gastric-gastrointestinal-stromal-tumors
#17
Zhidong Gao, Chao Wang, Qian Xue, Jingtong Wang, Zhanlong Shen, Kewei Jiang, Kai Shen, Bin Liang, Xiaodong Yang, Qiwei Xie, Shan Wang, Yingjiang Ye
BACKGROUD: The detectable rate of minimal gastric GISTs has continuously increased. While the surveillance and management of GIST <2 cm have been deemed controversial or lack evidence-based approaches.  The aim of the current study is to propose a cut-off value of tumor size for treatment policy and the appropriate timing for endoscopic ultrasonography (EUS) follow-up in the minimal EUS-suspected gastric GIST patients. METHODS: A single-institution retrospective study was performed...
January 11, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28075217/endoscopy-assisted-laparoscopic-resections-for-gastric-gastrointestinal-stromal-tumors-a-retrospective-study
#18
Jiang-Long Huang, Zong-Heng Zheng, Hong-Bo Wei, Tu-Feng Chen, Jian-Pei Liu, Yong Huang, Bo Wei, Jia-Feng Fang
OBJECTIVE: To explore the safety, feasibility, and clinical curative effect of endoscopy-assisted laparoscopic resections for gastric gastrointestinal stromal tumors (GISTs). MATERIALS AND METHODS: We retrospectively compared the general condition of 41 GIST patients undergoing endoscopy-assisted laparoscopic resections (n = 41, combined group) with those undergoing traditional open gastrectomy (n = 43, open surgery group). RESULTS: All patients survived during the surgery...
February 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28074523/familial-gastrointestinal-stromal-tumors-lentigines-and-caf%C3%A3-au-lait-macules-associated-with-germline-c-kit-mutation-treated-with-imatinib
#19
Divya Gupta, Laxmisha Chandrashekar, Lidia Larizza, Elisa A Colombo, Laura Fontana, Cristina Gervasini, Devinder M Thappa, Medha Rajappa, Kalai Selvi Rajendiran, Gubbi Shamanna Sreenath, Vikram Kate
BACKGROUND: Familial lentiginosis syndromes are characterized by a wide array of manifestations resulting from activation of molecular pathways which control growth, proliferation, and differentiation of a broad range of tissues. Familial gastrointestinal stromal tumors (GISTs) are often accompanied by additional features like hyperpigmentation, mastocytosis, and dysphagia. They have been described with mutations in c-kit (most commonly), platelet-derived growth factor receptor A, neurofibromatosis-1, and succinate dehydrogenase genes...
February 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28061498/skull-metastasis-of-gastric-gastrointestinal-stromal-tumor-successfully-managed-by-surgery
#20
Inkeun Park, Dong Hae Chung, Chan Jong Yoo, Dong Bok Shin
Gastrointestinal stromal tumors (GISTs) are rare, but are the most common mesenchymal neoplasm of the gastrointestinal tract. The most common sites of metastasis are liver and peritoneum, while bone metastasis is rare. We report on a patient with skull metastasis after seven years of treatment with imatinib for metastatic GIST. She underwent metastasectomy consisting of craniectomy with excision of the mass, and cranioplasty and continued treatment with imatinib and sunitinib, without evidence of cranial recurrence...
January 1, 2017: Journal of Korean Neurosurgical Society
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