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https://www.readbyqxmd.com/read/27904782/prognostic-values-of-dlk1-for-surgery-and-imatinib-mesylate-adjuvant-therapy-in-gastrointestinal-stromal-tumors
#1
Jia Xu, Ming Wang, Zizhen Zhang, Wenyi Zhao, Chaojie Wang, Lin Tu, Yeqian Zhang, Hui Cao
The Delta-like 1 homolog (DLK1) gene is a paternal imprinting gene located on human chromosome 14q32, a site associated with frequent chromosomal mutations in GIST. The expression level of DLK1 is closely associated with the outcome of tumours. However, no study has reported the DLK1 expression in GIST. Here, we demonstrated that DLK1 showed low expression in GIST patients with low risk according to the modified National Institute of Health (NIH) criteria. With increasing tumour risk level, DLK1 gene and protein expression levels gradually increased...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27900093/primary-gastrointestinal-stromal-tumour-of-the-ileum-pre-operatively-diagnosed-as-an-abdominal-abscess
#2
Patrizia Rubini, Francesco Tartamella
The present case report described the acute presentation, diagnosis and management of a primary gastrointestinal stromal tumour (GIST) of the ileum. A male patient (age, 51 years) was admitted to Maggiore Hospital (Parma, Italy) due to presenting with fever, dysuria and lower abdominal pain. Ultrasonography and computed tomography showed a 7,5×5,5-cm pelvic mass containing air and purulent fluid indicative of an intraperitoneal abscess. The patient was subjected to diagnostic laparoscopy, which revealed a huge, soft cystic mass arising from the small bowel...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27889785/overcoming-cost-implications-of-mutational-analysis-in-patients-with-gastrointestinal-stromal-tumors-a-pragmatic-approach
#3
Patrick Schöffski, Agnieszka Wozniak, Oliver Schöffski, Liesbet van Eycken, Maria Debiec-Rychter
BACKGROUND: Genetic analysis of tissue derived from patients with advanced gastrointestinal stromal tumors (GISTs) is not uniformly applied on a national and international level, even though mutational data can provide clinically relevant prognostic and predictive information, especially in patients qualifying for treatment with expensive targeted agents. METHODS: The current article describes the rationale for genetic testing of GIST tissue, looks at financial implications associated with such analysis and speculates on potential cost savings introduced by routine mutational testing and tailored use of tyrosine kinase inhibitors based on genotyping...
2016: Oncology Research and Treatment
https://www.readbyqxmd.com/read/27864817/surgical-resection-of-recurrent-gastrointestinal-stromal-tumor-after-interruption-of-long-term-nilotinib-therapy
#4
Takahito Sugase, Tsuyoshi Takahashi, Takashi Ishikawa, Hiroshi Ichikawa, Tatsuo Kanda, Seiichi Hirota, Kiyokazu Nakajima, Koji Tanaka, Yasuhiro Miyazaki, Tomoki Makino, Yukinori Kurokawa, Makoto Yamasaki, Shuji Takiguchi, Toshifumi Wakai, Masaki Mori, Yuichiro Doki
BACKGROUND: Nilotinib inhibits the tyrosine kinase activities of ABL1/BCR-ABL1, KIT, and platelet-derived growth factor receptors (PDGFRs). The results of a phase III clinical trial indicated that nilotinib could not be recommended for broad use as first-line therapy for gastrointestinal stromal tumor (GIST). However, some clinical studies have reported the effectiveness of nilotinib. We report here the cases of two patients who underwent surgical resections of nilotinib-resistant lesions after long-term nilotinib administration...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27846180/efficacy-of-endoscopic-submucosal-excavation-for-gastrointestinal-stromal-tumors-in-the-cardia
#5
Shanshan Wang, Lei Shen
OBJECTIVE: Our goal was to estimate the feasibility and efficacy of endoscopic submucosal excavation (ESE) for the treatment of gastrointestinal stromal tumors (GISTs) in the cardia. MATERIALS AND METHODS: We analyzed the clinical data of 30 patients who were diagnosed with GISTs after ESE in the cardia at the Endoscopy Center of Renmin Hospital of Wuhan University (China) from June 2009 to 2015. We evaluated the operative and postoperative conditions and long-term follow-up of these patients...
November 14, 2016: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/27844452/urgency-surgical-treatment-for-duodenal-gists-analysis-of-aged-patients-and-review-of-the-literature
#6
Carlo Boselli, Roberto Cirocchi, Alessandro Gemini, Francesco Barberini, Veronica Grassi, Stefano Avenia, Andrea Polistena, Alessandro Sanguinetti, Daniele Pironi, Alberto Santoro, Renata Tabola, Nicola Avenia
INTRODUCTION: Gastrointestinal stromal tumours (GISTs) are the most common mesenchymal neoplasms (85%) of the gastrointestinal (GI) tract; duodenal GISTs constitute 3-5% of all GISTs and represent 10-30% of all malignant tumours of the duodenum. Rarely, patients present severe bowel obstruction, perforation or severe bleeding. The radical resection with complete removal of the tumour remains the main therapeutic approach. We performed a local resection in patients with suspected GIST admitted for emergency treatment for GI bleeding...
November 14, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27788385/laparoscopic-resection-of-a-gastric-schwannoma-a-case-report
#7
Edgar Vargas Flores, Francisco Bevia Pérez, Pablo Ramirez Mendoza, José Arturo Velázquez García, Oscar Alejandro Ortega Román
INTRODUCTION: Mesenchymal tumors of the gastrointestinal tract are a group spindle cell tumors which include gastrointestinal stromal tumors, leiomyomas, leiomyosarcomas and schwannomas (Nishida and Hirota, 2000). Schwannomas generally present as a slow and asymptomatic growing mass in the gastrointestinal tract typically arising in the gastric submucosa accounting for up to 0.2% of gastric tumors (Melvin and Wilkinson, 1993; Sarlomo-Rikala M, Miettinen, 1995). TREATMENT: with negative surgical margin resection (as approached in this case) is considered the standard treatment...
October 20, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27783353/rectal-gist-outcomes-and-viewpoint-from-a-tertiary-cancer-center
#8
Saurabh Zanwar, Vikas Ostwal, Arvind Sahu, Deepak Jain, Anant Ramaswamy, Avanish Saklani, Mukta Ramadwar, Nitin Shetty, Shailesh V Shrikande
INTRODUCTION: There is scarce data relating to methods to improve sphincter preservation in rectal gastrointestinal stromal tumor (GIST). Increasing the duration of neoadjuvant (NA) imatinib resulting in improved sphincter preservation rate has not been established. This retrospective analysis looks at the rates of sphincter preservation in rectal GIST with NA imatinib and effect of duration of NA imatinib on the same to find out optimum duration of NA with respect to sphincter preservation in rectal GIST patients...
October 26, 2016: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/27721724/gastrointestinal-stromal-tumor-of-the-stomach-with-an-abscess-excised-by-laparoscopic-surgery
#9
Yoshiaki Maeda, Toshiki Shinohara, Tomonari Katayama, Akihisa Nagatsu, Noriaki Futakawa, Tomonori Hamada
Gastrointestinal stromal tumors (GISTs) of the stomach presenting as an intra-abdominal abscess are extremely rare. We herein report a case that underwent successful laparoscopic resection of gastric GIST presenting with an intra-abdominal abscess. A 70-year-old man presented with a 3-day history of acute upper abdominal pain with a fever. Laboratory data showed an elevated white blood cell count and C-reactive protein level. A CT scan revealed a mass of mixed solid and fluid components, measuring 5.5 cm, in the adjacent lesser curvature of the stomach...
May 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27713191/not-ery-small-bowel-submucosal-mass-is-a-gist-a-rare-case-of-small-bowel-schwannoma
#10
Giuseppe Portale, Mariano De Vito, Alberto Morabito, Massimiliano Zuccaro, Valentino Fiscon
INTRODUCTION: Schwannomas are slow-growing tumors, rarely occurring in the GI tract. When found, their location is mostly in the stomach. Presentation in the small bowel is extremely rare, anecdotal. CASE REPORT: We present the case of a 47-year old male who underwent laparoscopic elective left hemicolectomy for recurrent diverticulitis. RESULTS: At surgery an exophytic mass originating from the first jejunal loop was identified and resected, under the suspicion of a GIST...
July 8, 2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27698892/atypical-presentation-of-a-gastric-stromal-tumor-masquerading-as-a-giant-intraabdominal-cyst-a-case-report
#11
Ke-Kang Sun, Song Xu, Jinzhen Chen, Gang Liu, Xiaojun Shen, Xiaoyang Wu
Gastrointestinal stromal tumors (GISTs) are mesenchymal neoplasms that arise in the gastrointestinal tract, accounting for ~1% of gastric malignancies. The present study reports the case of a GIST of the stomach in a 75-year-old man who presented with abdominal distension and anorexia for 1 month. Gastroscopy was unremarkable. Ultrasound and computed tomography (CT) scans showed a giant intraabdominal cystic lesion of unknown origin. The lesion was initially believed to be a duplication cyst, a pancreatic pseudocyst or a liver cyst in the pre-operative diagnosis...
October 2016: Oncology Letters
https://www.readbyqxmd.com/read/27664034/clinicopathologic-features-and-prognosis-of-primary-gastrointestinal-stromal-tumor-patients-under-35-years-of-age-a-10-year-retrospective-study
#12
Peng Zhang, Rui Deng, Ke Liu, Xiao-Ming Shuai, Jie Bai, Wei-Long Chang, Jin-Bo Gao, Kai-Lin Cai, Guo-Bin Wang, Kai-Xiong Tao
OBJECTIVES: To investigate gastrointestinal stromal tumor (GIST) clinicopathologic characteristics in young adults. METHODS: Clinicopathologic data from GIST patients under 35 years diagnosed at our hospital from January 2005 to December 2014 were retrospectively collected. RESULTS: Thirty-one (5.3%, 31/585) patients were included; 17 (54.8%) were female. The most common presentation and primary tumor site were gastrointestinal bleeding (n = 18, 58...
September 23, 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27648625/elective-surgery-of-umbilical-hernia-as-a-first-clinical-manifestation-of-a-gastrointestinal-stromal-tumor-gist-case-report
#13
Bartosz Cybułka, Maciej Golański, Jacek Rapeła, Andrzej Wach
Gastrointestinal stromal tumor is a rare pathology. GISTs account for 0.3-1% of all tumors of the gastrointestinal tract. At the same time, this type of cancer is the most common, malignant, non-epithelial tumor of the gastrointestinal tube. Over 90% of GISTs are found in the stomach and small intestine. This cancer usually develops without characteristic clinical symptoms and is diagnosed incidentally. This clinical situation, in which the first symptom of a GIST-pattern tumor includes a fully-symptomatic, non-complicated umbilical hernia, is an unprecedented anomaly...
September 1, 2016: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/27628557/-a-case-of-resected-giant-gastrointestinal-stromal-tumor-associated-with-intraperitoneal-bleeding-following-imatinib-administration
#14
Ryuta Ide, Takahisa Suzuki, Yuji Takakura, Akihiko Oshita, Satoshi Ikeda, Yasuhiro Matsugu, Hideki Nakahara, Takashi Urushihara, Toshiyuki Itamoto, Katsunori Shinozaki
A 76-year-old woman with tarry stool was referred to our hospital for further examination. Contrast-enhanced computed tomography(CT)revealed a heterogeneous 15 cm tumor located in the left upper abdominal cavity. The tumor had a rich vascularity and was associated with intra-abdominal bleeding. Gastroscopy showed a large submucosal tumor in the gastric body. A biopsy was performed, and the patient was diagnosed with a c-kit-positive gastrointestinal stromal tumor(GIST)of the stomach. Imatinib mesylate(400mg/day)was administered for 6 months...
September 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27591496/combined-therapy-of-gastrointestinal-stromal-tumors
#15
REVIEW
Piotr Rutkowski, Daphne Hompes
Radical surgery is the mainstay of therapy for primary resectable, localized gastrointestinal stromal tumors (GIST). Nevertheless, approximately 40% to 50% of patients with potentially curative resections develop recurrent or metastatic disease. The introduction of imatinib mesylate has revolutionized the therapy of advanced (inoperable and/or metastatic) GIST and has become the standard of care in treatment of patients with advanced GIST. This article discusses the proper selection of candidates for adjuvant and neoadjuvant treatment in locally advanced GIST, exploring the available evidence behind the combination of preoperative imatinib and surgery...
October 2016: Surgical Oncology Clinics of North America
https://www.readbyqxmd.com/read/27579203/pancreatic-gist-in-a-patient-with-limited-stage-small-cell-lung-cancer-a-case-report-and-review-of-published-cases
#16
Minh Phan, Shari Jones, Justin Jenkins, Shubham Pant, Mohamad Khawandanah
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract and usually occur in the stomach and the small intestine. The pancreas is an extremely rare primary site for GISTs and there are 25 reported cases of pancreatic GIST with most being treated with surgical resection. We describe a 52-year-old African-American female who was diagnosed with limited stage small cell carcinoma in November 2009 and treated with concurrent cisplatin/etoposide chemotherapy and radiation...
2016: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/27563454/neoadjuvant-imatinib-longer-the-better-need-to-modify-risk-stratification-for-adjuvant-imatinib
#17
Anant Ramaswamy, Deepak Jain, Arvind Sahu, Joydeep Ghosh, Priya Prasad, Kedar Deodhar, Nitin Shetty, Shripad Banavali, Shailesh Shrikhande, Vikas Ostwal
BACKGROUND: Multimodality treatment of gastrointestinal stromal tumor (GIST) with surgery and adjuvant imatinib mesylate (IM), along with an emerging role for neoadjuvant IM prior to evaluation for resectability has resulted in high survival rates. METHODS: We conducted a retrospective analysis of prospectively collected data of patients who underwent surgery for GIST, prior to or followed by IM therapy. A total of 112 patients underwent surgery between January 2009 and March 2015 at our centre...
August 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/27547025/transanal-minimally-invasive-surgery-for-rectal-lesions
#18
Silvia Quaresima, Andrea Balla, Luana Franceschilli, Marco La Torre, Corrado Iafrate, Mostafa Shalaby, Nicola Di Lorenzo, Pierpaolo Sileri
BACKGROUND AND OBJECTIVES: Transanal minimally invasive surgery (TAMIS) has emerged as an alternative to transanal endoscopic microsurgery (TEM). The authors report their experience with TAMIS for the treatment of mid and high rectal tumors. METHODS: From November 2011 through May 2016, 31 patients (21 females, 68%), with a median age of 65 years who underwent single-port TAMIS were prospectively enrolled. Mean distance from the anal verge of the rectal tumors was 9...
July 2016: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/27492430/safety-analysis-of-laparoscopic-endoscopic-cooperative-surgery-versus-endoscopic-submucosal-dissection-for-selected-gastric-gastrointestinal-stromal-tumors-a-propensity-score-matched-study
#19
A I Balde, Tao Chen, Yanfeng Hu, J D Redondo N, Hao Liu, Wei Gong, Jiang Yu, Li Zhen, Guoxin Li
BACKGROUND: Laparoscopic endoscopic cooperative surgery (LECS) is a safe alternative to endoscopic submucosal dissection (ESD) for select gastric gastrointestinal stromal tumors (GISTs) that are <2 cm in size. To date, there have been no randomized studies comparing the feasibility of these two techniques. Therefore, we compared their feasibility and safety using the propensity score matching method in this study. METHODS: This was a single-center, retrospective, propensity score-matched study of patients who underwent resection of selected gastric GISTs between 2004 and 2014...
August 4, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27478963/diagnostic-and-treatment-strategy-for-small-gastrointestinal-stromal-tumors
#20
Toshirou Nishida, Osamu Goto, Chandrajit Premanand Raut, Naohisa Yahagi
Gastrointestinal stromal tumors (GISTs) are considered to be potentially malignant mesenchymal tumors of the gastrointestinal tract. Clinically relevant GISTs are rare; however, subclinical GISTs (mini-GISTs) (1-2 cm) and pathologic GISTs (micro-GISTs) (<1 cm) are frequently reported. Most mini-GISTs and almost all micro-GISTs of the stomach may exhibit benign clinical behavior, and only mini-GISTs with high-risk features may progress. For this review, a provisional algorithm was used to propose diagnostic and treatment strategies for patients with small GISTs...
October 15, 2016: Cancer
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