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https://www.readbyqxmd.com/read/27921054/a-rare-case-of-sunitinib-induced-exfoliative-esophagitis
#1
Swapna Gayam, Ashwini Anumandla
Sunitinib is a chemotherapeutic agent that has been approved for renal cell carcinoma and gastrointestinal stromal tumors resistant to imatinib. It is usually well tolerated and severe gastrointestinal side effects are rare. There are very few reports of sunitinib causing severe esophagitis, and only one of them was previously reported as exfoliative esophagitis. We describe a case of severe sunitinib-induced exfoliative esophagitis that resulted in overt gastrointestinal bleed.
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27920660/neurofibroma-of-the-colon-a-diagnostic-mimicker-of-gastrointestinal-stromal-tumor
#2
Soomin Ahn, Choon Sik Chung, Kyoung-Mee Kim
Gastrointestinal neurofibroma usually develops as diffuse gastrointestinal involvement in neurofibromatosis type 1 patients. Only 4 cases of sporadic colonic neurofibroma in a patient without neurofibromatosis type 1 have been reported in the English literature. A 26-year-old female patient underwent colonoscopy, and a 4-cm-sized polypoid mass was identified in the sigmoid colon. Wedge resection of the mass showed a yellowish, hard submucosal tumor. Microscopically, the tumor was composed of wavy spindle cells, fibroblasts, and strands of collagen; the stroma showed scattered myxoid areas...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920659/obscure-gastrointestinal-bleeding-due-to-a-small-intestinal-gastrointestinal-stromal-tumor-in-a-young-adult
#3
Mami Yamamoto, Kentaroh Yamamoto, Hirotaka Taketomi, Fumio Yamamoto, Hiroshi Yamamoto
The source of most cases of gastrointestinal bleeding is the upper gastrointestinal tract. Since bleeding from the small intestine is very rare and difficult to diagnose, time is required to identify the source. Among small intestine bleeds, vascular abnormalities account for 70-80%, followed by small intestine tumors that account for 5-10%. The reported peak age of the onset of small intestinal tumors is about 50 years. Furthermore, rare small bowel tumors account for only 1-2% of all gastrointestinal tumors...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920639/a-giant-gastrointestinal-stromal-tumor-of-the-stomach-with-extramural-growth
#4
Ryosuke Miyazaki, Seiji Arihiro, Eri Hayashi, Takuya Kitahara, Sayumi Oki, Syunsuke Kamba, Daisuke Ide, Nobuhiko Komoike, Kenichi Satoh, Tomohiro Kato, Masayuki Saruta, Hisao Tajiri, Hiroaki Aoki, Nobuo Omura, Norio Mitsumori, Takehiro Mitsuishi, Haruka Yanagisawa, Hiroyuki Takahashi
A 76-year-old man presented to our hospital with abdominal distention and loss of appetite. The 10% of weight lost relative to this patient in 1 month. Abdominal computed tomography and magnetic resonance imaging revealed a giant mass, with a major axis of 23 cm, containing solid components, not involving the upper abdominal organs. Esophagogastroduodenoscopy showed extramural compression from the middle gastric body to the antrum, as well as a normal mucosal surface. These findings were suggestive of a gastrointestinal stromal tumor attached to the anterior wall of the stomach without metastasis or invasion...
May 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920003/clinical-significance-of-the-glasgow-prognostic-score-in-patients-with-gastrointestinal-stromal-tumors
#5
Takaaki Arigami, Yoshikazu Uenosono, Sumiya Ishigami, Shigehiro Yanagita, Keishi Okubo, Yasuto Uchikado, Yoshiaki Kita, Shinichiro Mori, Hiroshi Kurahara, Kosei Maemura, Shoji Natsugoe
AIM: To assess the clinical utility of the Glasgow prognostic score (GPS) as a blood predictor of postoperative recurrence in patients with gastric gastrointestinal stromal tumors (GISTs). PATIENTS AND METHODS: Twenty-nine patients with gastric GISTs undergoing gastrectomy were retrospectively reviewed. Patients were classified based on GPS criteria as follows: GPS of 2: elevated C-reactive protein (>1.0 mg/dl) and hypoalbuminemia (<3.5 g/dl), GPS of 1: one of these hematological abnormalities, and GPS of 0: neither elevated CRP nor hypoalbuminemia...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27918199/advances-and-controversies-in-the-management-of-soft-tissue-sarcomas
#6
George D Demetri, Jean-Yves Blay, Paolo G Casali
Intensive clinical research in the sarcoma field has provided insight into the histopathological diversity of soft tissue sarcomas (STS) and led to the introduction of many new agents that promise to play an important role in the management of patients with STS. While an increasing body of scientific data has advanced our knowledge of this complex family of mesenchymal diseases, several controversies remain to be resolved: Is doxorubicin-based therapy still the definitive standard first-line treatment for all patients with unresectable and/or metastatic STS of all subtypes? Is histology-driven therapy beyond gastrointestinal stromal tumors a reality or are we pursuing an unachievable objective? Are we making practical headway in the establishment of sarcoma reference centers? Is it clearly established which is the best parameter to evaluate the efficacy of a new agent in STS?...
January 2017: Future Oncology
https://www.readbyqxmd.com/read/27911930/the-therapeutic-response-of-gastrointestinal-stromal-tumors-to-imatinib-treatment-assessed-by-intravoxel-incoherent-motion-diffusion-weighted-magnetic-resonance-imaging-with-histopathological-correlation
#7
Feng Pan, Jie Den, Chunfang Zhang, He Wang, Jin Cheng, Weizhen Wu, Nan Hong, Yi Wang
PURPOSE: To exploit the intravoxel incoherent motion (IVIM) diffusion-weighted (DW) MRI when evaluating the therapeutic response of gastrointestinal stromal tumors (GIST) to Imatinib in a mouse model. MATERIALS AND METHODS: Mice with xenografts bearing cells from the GIST-T1 cell line were randomly divided into a treated group receiving Imatinib and a control group. DWMRI scans with 14 b-values (0-1500 s/mm2) were performed before and after treatment (days 1, 3 and 7)...
2016: PloS One
https://www.readbyqxmd.com/read/27909636/imatinib-induced-ototoxicity-in-a-patient-with-gastrointestinal-stromal-tumor-gist
#8
Komal Wasif, Nawal Wasif, Muhammad W Saif
Imatinib (Gleevec) is a biological agent that is approved for the treatment of chronic myeloid leukemia (CML) as well as gastrointestinal stromal tumor (GIST). The most frequently seen adverse effects in patients treated with imatinib include superficial edema, muscle cramps, musculoskeletal pain, rash, fatigue, headache, abdominal pain, and joint pain. Ototoxicity has rarely been reported except in two cases. We report a case of bilateral irreversible sensorineural hearing loss (SNHL) caused by imatinib in a patient receiving this agent in the adjuvant setting...
October 26, 2016: Curēus
https://www.readbyqxmd.com/read/27904782/prognostic-values-of-dlk1-for-surgery-and-imatinib-mesylate-adjuvant-therapy-in-gastrointestinal-stromal-tumors
#9
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/27900631/are-we-allowed-to-limit-surgical-aggressiveness-with-small-rectal-gastrointestinal-stromal-tumors
#10
EDITORIAL
Marco Fiore, Chandrajit P Raut, Alessandro Gronchi
No abstract text is available yet for this article.
November 29, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27896638/seom-clinical-guideline-for-gastrointestinal-sarcomas-gist-2016
#11
A Poveda, V Martinez, C Serrano, I Sevilla, M J Lecumberri, R D de Beveridge, A Estival, D Vicente, J Rubió, J Martin-Broto
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the digestive tract, and this disease has served as a paradigmatic model for successful rational development of targeted therapies. The introduction of tyrosine kinase inhibitors with activity against KIT/PDGFRA in both localized and advanced stages has remarkably improved the survival in a disease formerly deemed resistant to all systemic therapies. The Spanish Society of Medical Oncology (SEOM) guidelines provide a multidisciplinary and updated consensus for the diagnosis and treatment of GIST patients...
December 2016: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/27896475/an-exploratory-association-of-polymorphisms-in-angiogenesis-related-genes-with-susceptibility-clinical-response-and-toxicity-in-gastrointestinal-stromal-tumors-receiving-sunitinib-after-imatinib-failure
#12
Gloria Ravegnini, Margherita Nannini, Corrado Zenesini, Vittorio Simeon, Giulia Sammarini, Milena Urbini, Lidia Gatto, Maristella Saponara, Guido Biasco, Maria A Pantaleo, Nicola Venturoli, Patrizia Hrelia, Sabrina Angelini
The angiogenic pathway plays a pivotal role in tumor growth, invasiveness and metastasis. The most important actors in the angiogenic pathway are VEGFA and its receptors VEGFR1, 2 and 3. These genes are polymorphic, and the presence of single nucleotide polymorphisms may result in angiogenic deregulation. Herein, we hypothesized that germline variants may affect sunitinib efficacy (TTP and OS) and/or toxicity. Therefore, we investigated 19 polymorphisms, in four genes, in 54 GIST patients, treated with second-line sunitinib and 147 healthy controls...
November 28, 2016: Angiogenesis
https://www.readbyqxmd.com/read/27889785/overcoming-cost-implications-of-mutational-analysis-in-patients-with-gastrointestinal-stromal-tumors-a-pragmatic-approach
#13
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/27887925/a-large-degenerated-gastrointestinal-stromal-tumor-presenting-as-a-peri-pancreatic-cyst
#14
James W Walter, William Klump, Francis Spitz, Adam Elfant, Henry C Ho
No abstract text is available yet for this article.
November 22, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27887020/gastric-glomus-tumor
#15
Alexandria Papadelis, Collin J Brooks, Renato G Albaran
Gastric glomus tumors are rare, mesenchymal neoplasms, generally described as benign and account for nearly 1% of all gastrointestinal soft tissue tumors. The most common gastrointestinal site of involvement is the stomach, particularly the antrum. Gastric glomus tumors are submucosal tumors that lack specific clinical and endoscopic characteristics, and are often mistaken for the more common gastrointestinal stromal tumors. A 62-year-old Caucasian female presented with shortness of breath and a persistent cough...
November 24, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27885685/gastric-and-small-intestine-gastrointestinal-stromal-tumors-do-outcomes-differ
#16
Katherine Giuliano, Neeraja Nagarajan, Joseph Canner, Alireza Najafian, Christopher Wolfgang, Eric Schneider, Christian Meyer, Anne Marie Lennon, Fabian M Johnston, Nita Ahuja
BACKGROUND AND OBJECTIVES: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. Previous literature has suggested that small intestine GISTs are more aggressive than gastric GISTs. Our primary objective was to compare the outcomes of gastric and small intestine GISTs in the decade after approval of imatinib for treatment. METHODS: The SEER database was queried for cases of gastric and small intestine GIST between the years 2002 and 2012, using the ICD-O-3 histology code 8936...
November 25, 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27878861/eus-guided-biopsy-using-a-franseen-needle-design-an-initial-assessment
#17
Ji Young Bang, Shantel Hebert-Magee, Muhammad K Hasan, Udayakumar Navaneethan, Robert Hawes, Shyam Varadarajulu
BACKGROUND AND AIM: Recently, a 22 gauge (G) needle with a Franseen tip design was developed for EUS-guided fine needle biopsy (EUS-FNB). This study evaluated the performance of the Franseen biopsy needle in EUS-guided tissue acquisition. METHODS: This is a retrospective study of patients who underwent EUS-FNB using the Franseen needle. Lesions were sampled either using only the Franseen needle or after failed diagnostic fine needle aspiration (FNA). After rapid onsite evaluation (ROSE), two dedicated passes were performed for histological assessment using the cell block technique...
November 23, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/27873740/response-to-the-anastrozole-treatment-in-a-case-with-peutz-jeghers-syndrome-who-was-detected-to-have-large-cell-calcifying-sertoli-cell-tumor-and-developed-pre-pubertal-gynecomastia
#18
Merve Koç Yekedüz, Zeynep Şıklar, Berk Burgu, Zarife Kuloğlu, Pınar Kocaay, Emine Çamtosun, Mehmet İsakoca, Aydan Kansu, Tarkan Soygür, Merih Berberoğlu
Peutz-Jeghers Syndrome (PJS) is inherited as an autosomal dominant trait which is characterized by multiple gastrointestinal hamartomatous polyps, mucocutaneous pigmentation, and an increased risk of neoplasm. Large Cell Calcifying Sertoli Cell Tumor (LCCSCT) is a kind of sex cord-stromal tumor, often bilateral and multifocal, accounting for 0.4 -1.5% of entire testicular tumors which may co-exist with PJS and is characterized radiologically by calcification foci within the testes. Surgical treatment options for this tumor range from testis-preserving surgery to radical orchiectomy...
November 22, 2016: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/27872880/data-on-quantification-of-signaling-pathways-activated-by-kit-and-pdgfra-mutants
#19
Christelle Bahlawane, Martine Schmitz, Elisabeth Letellier, Karthik Arumugam, Nathalie Nicot, Petr V Nazarov, Serge Haan
The present data are related to the article entitled "Insights into ligand stimulation effects on gastro-intestinal stromal tumors signaling" (C. Bahlawane, M. Schmitz, E. Letellier, K. Arumugam, N. Nicot, P.V. Nazarov, S. Haan, 2016) [1]. Constitutive and ligand-derived signaling pathways mediated by KIT and PDGFRA mutated proteins found in gastrointestinal stromal tumors (GIST) were compared. Expression of mutant proteins was induced by doxycycline in an isogenic background (Hek293 cells). Kit was identified by FACS at the cell surface and found to be quickly degraded or internalized upon SCF stimulation for both Kit Wild type and Kit mutant counterparts...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27869179/interleukins-17-and-23-in-patients-with-gastric-neoplasms
#20
Wojciech Błogowski, Anna Madej-Michniewicz, Natalia Marczuk, Barbara Dołęgowska, Teresa Starzyńska
Recently there has been heightened interest in the potential significance of interleukin (IL)-17 and IL-23 in the development/progression of human malignancies. Here, we analyzed the systemic levels of these cytokines in 75 patients with different types of gastric neoplasms (carcinoma, gastrointestinal stromal tumors, neuroendocrine neoplasms, and lymphomas) and 42 healthy volunteers. We found that patients with all types of gastric neoplasms have significantly lower IL-23 levels. However, in comparison to the levels in healthy individuals, IL-17 concentrations were lower only in patients with types of gastric neoplasms other than carcinoma...
November 21, 2016: Scientific Reports
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