2,246 results match your criteria Intestinal Stromal Tumors

Ripretinib for the treatment of advanced gastrointestinal stromal tumor.

John R Zalcberg

Therap Adv Gastroenterol 2021 15;14:17562848211008177. Epub 2021 Apr 15.

Department of Medical Oncology, Alfred Health and the School of Public Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia.

Gastrointestinal stromal tumors (GISTs) are rare tumors of the gastrointestinal (GI) tract yet represent the most common GI sarcomas. Most GISTs are driven by activating mutations of the and/or genes. Prior to the development of tyrosine kinase inhibitors (TKIs), GISTs were associated with a poor prognosis because conventional cytotoxic chemotherapy was relatively ineffective. Read More

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Asporin Expression on Stromal Cells and/or Cancer Cells Might Be A Useful Prognostic Marker in Patients with Diffuse-Type Gastric Cancer.

Eur Surg Res 2021 Apr 21:1-8. Epub 2021 Apr 21.

Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka City, Japan.

Background: Asporin (ASPN), a member of the proteoglycan family, has been shown to have a close correlation with cancer progression. It is not known whether ASPN is an oncogenic driver or a tumor suppressor in human gastric cancer. We sought herein to determine the relationship between ASPN expression and clinicopathological features of gastric cancer. Read More

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Gastric and Small Intestine Gist: Results of 156 Cases in 20 Years.

J Gastrointest Cancer 2021 Apr 19. Epub 2021 Apr 19.

Esofagogastric Unit, Bellvitge University Hospital, de La Feixa Llarga, s/n L´Hospitalet de Llobregat, Barcelona, Spain.

Purpose: Gastric and small intestine are the most common gastrointestinal stromal tumors (GISTs). There are few studies of patients who underwent surgical treatment with disparate findings. We aimed to evaluate the differences between groups and the risk factors for recurrence and mortality. Read More

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[A Case of the Large Rectal GIST Treated by Laparoscopic Anus Preserving Operation after Neoadjuvant Therapy with Imatinib Mesylate].

Gan To Kagaku Ryoho 2021 Mar;48(3):385-387

Dept. of Surgery, Osaka City University Graduate School of Medicine.

A 50s old woman admitted to our hospital with anal pain, who was diagnosed as rectal gastrointestinal stromal tumor (GIST). After neoadjuvant therapy with imatinib mesylate for 6 months, the tumor reduced by 75% from its original size and anus preserving operation(low anterior resection)was performed. After operation adjuvant therapy with imatinib mesylate was performed for 2 years and 6 months. Read More

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Building contrast-enhanced CT-based models for preoperatively predicting malignant potential and Ki67 expression of small intestine gastrointestinal stromal tumors (GISTs).

Abdom Radiol (NY) 2021 Mar 25. Epub 2021 Mar 25.

Department of Radiology, the Second Affiliated Hospital, Zhejiang University, School of Medicine, Hangzhou, China.

Purpose: To assess contrast-enhanced computed tomography (CE-CT) features for predicting malignant potential and Ki67 in small intestinal gastrointestinal stromal tumors (GISTs) and the correlation between them.

Methods: We retrospectively analyzed the pathological and imaging data for 123 patients (55 male/68 female, mean age: 57.2 years) with a histopathological diagnosis of small intestine GISTs who received CE-CT followed by curative surgery from May 2009 to August 2019. Read More

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Establishment and verification of a nomogram for predicting survival in patients with small intestinal gastrointestinal stromal tumors.

Dig Dis 2021 Mar 22. Epub 2021 Mar 22.

Background: This study aimed to develop and validate nomograms for predicting overall survival (OS) and cancer-specific survival (CSS) in small intestinal gastrointestinal stromal tumours (SI GISTs).

Methods: Patients diagnosed with SI GISTs were retrieved from the Surveillance, Epidemiology, and End Results (SEER) database and further randomly divided into the training and validating cohorts. Univariate and multivariate cox analyses were conducted in the training set to determine independent prognostic factors to build nomograms for predicting 3- and 5-year OS and CSS. Read More

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Surgical Management of Metastatic Gastrointestinal Stromal Tumors.

Curr Treat Options Oncol 2021 Mar 20;22(5):37. Epub 2021 Mar 20.

Department of Surgery, Division of Hepatobiliary and Pancreas Surgery, Mayo Clinic, 200 First Street S.W, Rochester, MN, 55905, USA.

Opinion Statement: Treatment with the tyrosine kinase inhibitor (TKI), imatinib is the standard first-line treatment for metastatic gastrointestinal stromal tumors (GISTs). Unfortunately, acquired c-kit mutations cause secondary resistance to imatinib in a median of 18-24 months. Sunitinib and regorafenib are multi-kinase inhibitors that can be used as second-line or third-line therapy in imatinib-resistant or -intolerant GISTs, respectively. Read More

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Pathological characterization of intracholecystic papillary neoplasm: A recently proposed preinvasive neoplasm of gallbladder.

Ann Diagn Pathol 2021 Mar 3;52:151723. Epub 2021 Mar 3.

Department of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Shizuoka, Japan.

Intracholecystic papillary neoplasm (ICPN) is a recently proposed gallbladder neoplasm. Its prevalence and pathologies remain to be clarified. A total of 38 ICPN cases (28 ICPNs identified among 1904 cholecystectomies (1. Read More

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The efficacy and safety of laparoscopy combined with gastroscopy positioning in treating gastric stromal tumours: A systematic review and meta-analysis.

J Minim Access Surg 2021 Apr-Jun;17(2):147-152

Chinese Center for Disease Control and Prevention, Key Laboratory of Trace Element Nutrition of National Health Commission, National Institute for Nutrition and Health, Beijing, China.

Background And Objectives: The objective was to assess the efficacy and safety in treating gastric stromal tumours by laparoscopy combined with gastroscopy positioning surgery.

Methods: The randomised controlled trials (RCTs), which are about the efficacy and safety of laparoscopy combined with gastroscopy positioning surgery in treating gastric stromal tumours were searched from the PubMed (1998-1990-2018.6), Wanfang Data (1990-2018. Read More

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Transcriptomic Profiling of Tumor-Stromal Cell Paracrine Crosstalk Identifies Involvement of the Integrin Signaling Pathway in the Pathogenesis of Mesenteric Fibrosis in Human Small Intestinal Neuroendocrine Neoplasms.

Front Oncol 2021 24;11:629665. Epub 2021 Feb 24.

Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom.

Aim: Analysis of the pathophysiology of mesenteric fibrosis (MF) in small intestinal neuroendocrine tumors (SI-NETs) in an paracrine model and in human SI-NET tissue samples.

Methods: An indirect co-culture model of SI-NET cells KRJ-I and P-STS with stromal cells HEK293 was designed to evaluate the paracrine effects on cell metabolic activity, gene expression by RT2 PCR Profilers to analyse cancer and fibrosis related genes, and RNA sequencing. The integrin signaling pathway, a specific Ingenuity enriched pathway, was further explored in a cohort of human SI-NET tissues by performing protein analysis and immunohistochemistry. Read More

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February 2021

The prognostic impact of the tumour stroma fraction: A machine learning-based analysis in 16 human solid tumour types.

EBioMedicine 2021 Mar 9;65:103269. Epub 2021 Mar 9.

Diagnostic Radiology, Department of Translational Medicine, Lund University, Skåne University Hospital, Lund, Sweden.

Background: The development of a reactive tumour stroma is a hallmark of tumour progression and pronounced tumour stroma is generally considered to be associated with clinical aggressiveness. The variability between tumour types regarding stroma fraction, and its prognosis associations, have not been systematically analysed.

Methods: Using an objective machine-learning method we quantified the tumour stroma in 16 solid cancer types from 2732 patients, representing retrospective tissue collections of surgically resected primary tumours. Read More

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A Case of Liver Metastasis from Small Intestinal Gastrointestinal Stromal Tumor 25 Years after Surgery including Autopsy Findings.

Case Rep Gastrointest Med 2021 24;2021:6642427. Epub 2021 Feb 24.

Division of Gastroenterology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan.

Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor in the digestive tract. Recurrences may occur even after radical resection; however, recurrence later than 10 years after surgery is rare. We report a case of GIST with recurrence of liver metastasis 25 years after surgery. Read More

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February 2021

Ruptured Small Intestinal Stromal Tumor Causing Concurrent Gastrointestinal and Intra-Abdominal Hemorrhage: A Case Report.

Yonago Acta Med 2021 Feb 22;64(1):137-142. Epub 2021 Feb 22.

Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan.

Gastrointestinal stromal tumors (GISTs) originate from mesenchymal cells throughout the gastrointestinal tract. A common symptom is gastrointestinal hemorrhage; intra-abdominal hemorrhage is relatively rare. There are few reports of GIST presenting with both types of hemorrhage concurrently. Read More

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February 2021

Clinical, endoscopic and histological profile of colorectal cancers seen on colonoscopy in Kano, North-Western Nigeria.

Niger Postgrad Med J 2021 Jan-Mar;28(1):22-26

Department of Internal Medicine, Aminu Kano Teaching Hospital and Bayero University Kano, Kano State, Nigeria.

Background: Colorectal cancer (CRC) is the most prevalent gastrointestinal (GI) cancer. With 5% risk of developing CRC in life, it became the third leading cause of cancer death in developed nations. In Nigeria, it is the most common GI cancer. Read More

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Generation of Colon Cancer Model Based on Colonoscopy Injection.

Suhwan Chang

Methods Mol Biol 2021 ;2224:147-152

Department of Biomedical Sciences, Physiology, College of Medicine, Asan Medical Center, University of Ulsan, Seoul, South Korea.

Colorectal cancer animal model is a very useful tool to explore the tumor initiation and development. In the past year, many methods have been used for building up the mouse model including the subcutaneous injection and cecal wall injection or implantation. But this model cannot reflect the native stromal environment of the colon mucosa. Read More

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Extragastrointestinal Stromal Tumor Presenting as a Recurrent Vaginal Mass: Case Report.

Onco Targets Ther 2021 10;14:959-965. Epub 2021 Feb 10.

Department of Oncology, Jinan Central Hospital Affiliated to Shandong University; Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, People's Republic of China.

Gastrointestinal stromal tumors (GISTs) are the dominant mesenchymal tumors of the digestive tract. Extragastrointestinal stromal tumors (EGISTs) usually originate outside the gastrointestinal tract without connection to the gastric or intestinal wall. However, EGISTs arising from the vaginal wall are very rare. Read More

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February 2021

[A Case of Gastrointestinal Stromal Tumor of the Lower Rectum That Enabled Minimally Invasive Surgery with Imatinib Mesylate as Neoadjuvant Chemotherapy].

Gan To Kagaku Ryoho 2021 Feb;48(2):269-272

Dept. of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine.

A 67-year-old woman was admitted with melena. A colonoscopy detected a 50 mm submucosal tumor close to the dentate line. We diagnosed the rectal gastrointestinal stromal tumor by EUS-FNA. Read More

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February 2021

Gut microbiota of patients with different subtypes of gastric cancer and gastrointestinal stromal tumors.

Gut Pathog 2021 Feb 17;13(1):11. Epub 2021 Feb 17.

Faculty of Medicine, Department of Pathology, University of Helsinki, 00014, Helsinki, Finland.

Background: Gastric adenocarcinoma is associated with H. pylori infection and inflammation that can result in the dysbiosis of gastric microbiota. The association of intestinal microbiota with gastric adenocarcinoma subtypes or with gastric gastrointestinal stromal tumors (GIST) is however not well known. Read More

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February 2021

Hedgehog Signaling in Colorectal Cancer: All in the Stroma?

Int J Mol Sci 2021 Jan 20;22(3). Epub 2021 Jan 20.

Department of Biosciences and Nutrition, Karolinska Institutet, 14183 Huddinge, Sweden.

Hedgehog (Hh) signaling regulates intestinal development and homeostasis. The role of Hh signaling in cancer has been studied for many years; however, its role in colorectal cancer (CRC) remains controversial. It has become increasingly clear that the "canonical" Hh pathway, in which ligand binding to the receptor PTCH1 initiates a signaling cascade that culminates in the activation of the GLI transcription factors, is mainly organized in a paracrine manner, both in the healthy colon and in CRC. Read More

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January 2021

Perforation of intestinal leiomyosarcoma: A case report.

Int J Surg Case Rep 2021 Feb 19;79:327-330. Epub 2021 Jan 19.

Department of Surgery, Tokyo Bay Medical Center, 3-4-32 Todaijima, Urayasu, Chiba, 279-0001, Japan. Electronic address:

Introduction And Importance: The majority of gastrointestinal sarcoma is gastrointestinal stromal tumors and intestinal leiomyosarcoma is rare. Small intestinal mesenchymal tumors are often large at diagnosis, and they commonly present with bleeding or intussusception. We report a perforation associated with intestinal leiomyosarcoma. Read More

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February 2021

Final analysis of the randomized trial on imatinib as an adjuvant in localized gastrointestinal stromal tumors (GIST) from the EORTC Soft Tissue and Bone Sarcoma Group (STBSG), the Australasian Gastro-Intestinal Trials Group (AGITG), UNICANCER, French Sarcoma Group (FSG), Italian Sarcoma Group (ISG), and Spanish Group for Research on Sarcomas (GEIS).

Ann Oncol 2021 04 19;32(4):533-541. Epub 2021 Jan 19.

Department of Medicine, NetSARC and LYRIC, Centre Leon Berard, Lyon, France.

Background: In 2004, we started an intergroup randomized trial of adjuvant imatinib versus no further therapy after R0-R1 surgery in localized, high/intermediate-risk gastrointestinal stromal tumors (GIST) patients. Interim analysis results were published in 2015 upon recommendation from an independent data review committee. We report the final outcome of the study. Read More

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Nihon Hinyokika Gakkai Zasshi 2020 ;111(1):34-37

Division of Urology, Kansai Rosai Hospital.

When resecting small tumors or tumors with an irregular margin, a marking technique is conducted prior to the surgery. CT-guided marking techniques are common in pulmonary surgery, but it is rarely used in abdominal or urological surgery. We performed a marking technique for a small tumor that was undetectable by ultrasound using CT guidance prior to laparoscopic resection. Read More

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February 2021

[Laparoscopic Local Resection for Duodenal Gastrointestinal Stromal Tumor Located in the Third Portion Using Kocher's Maneuver-A Case Report].

Gan To Kagaku Ryoho 2020 Dec;47(13):2144-2146

Dept. of Surgery, Fujita Health University.

Duodenal gastrointestinal stromal tumor(GIST)are relatively rare. Here, we report a case of a duodenal GIST located in the third portion that was successfully treated via laparoscopic local resection using the Kocher maneuver. A 49-year-old woman with a high BMI of 43. Read More

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December 2020

[A Case of Liver Metastasis 28 Years after Resection for Gastrointestinal Stromal Tumor of Duodenum].

Gan To Kagaku Ryoho 2020 Dec;47(13):1810-1812

Dept. of Surgery, Kimitsu Chuo Hospital.

A 69-year-old woman underwent a pancreaticoduodenectomy at the age of 41 years for a submucosal tumor of duodenum, which was diagnosed as leiomyoma at that time. Twenty eight years later, a liver tumor, which is 10 cm in a diameter, was identified on an abdominal ultrasonography. The left hepatectomy was undertaken. Read More

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December 2020

[A Case Report on Laparoscopic Duodenal Sleeve Resection of GIST at a Distal Portion from the Papilla Vater].

Gan To Kagaku Ryoho 2020 Dec;47(13):2086-2088

Dept. of Sugery, Chiba Kaihin Municipal Hospital.

A 21-year-old woman was admitted for preshock due to severe anemia. A 5 cm gastrointestinal stromal tumor(GIST)at the jejunal flexure of her duodenum was diagnosed by enhanced CT examination. We performed a total laparoscopic pancreas- preserving duodenal sleeve resection with a 2 cm margin from the tumor. Read More

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December 2020

[A Case of a Huge Gastrointestinal Stromal Tumor with Extraluminal Growth Arising in the Small Intestine Diagnosed as an Ovarian Tumor].

Gan To Kagaku Ryoho 2020 Dec;47(13):1927-1929

Dept. of Surgery, Toyama Prefectural Central Hospital.

We report a case of a gastrointenstinal stromal tumor(GIST)of the small intestine with extraluminal growth that was difficult to distinguish from an ovarian tumor. A 73-year-old woman presented to a nearby hospital for lower abdominal pain. A computed tomography(CT)scan showed a 17 cm ovarian tumor in the pelvis, and she was referred to the gynecology department of our hospital. Read More

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December 2020

Chemokine (C-C Motif) Ligand 1 Derived from Tumor-Associated Macrophages Contributes to Esophageal Squamous Cell Carcinoma Progression via CCR8-Mediated Akt/Proline-Rich Akt Substrate of 40 kDa/Mammalian Target of Rapamycin Pathway.

Am J Pathol 2021 04 16;191(4):686-703. Epub 2021 Jan 16.

Division of Pathology, Department of Pathology, Kobe University Graduate School of Medicine, Kobe, Japan.

Tumor-associated macrophages (TAMs) promote tumor progression. The number of infiltrating TAMs is associated with poor prognosis in esophageal squamous cell carcinoma (ESCC) patients; however, the mechanism underlying this phenomenon is unclear. cDNA microarray analysis indicates that the expression of chemokine (C-C motif) ligand 1 (CCL1) is up-regulated in peripheral blood monocyte-derived macrophages stimulated using conditioned media from ESCC cells (TAM-like macrophages). Read More

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Tumor Microenvironmental Prognostic Risk in Primary Operable Small Intestinal Adenocarcinoma.

Am J Surg Pathol 2021 Jan 13. Epub 2021 Jan 13.

Department of Pathology Clinical Research Center, Incheon St. Mary's Hospital Department of Pathology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD.

The tumor microenvironment (TME) has become an important area of investigation with respect to improving prognosis in malignancies. Here we evaluated TME prognostic risk in small intestinal adenocarcinomas based on histologic assessment of tumor budding at the peritumoral-invasive front (pTB) and stromal tumor-infiltrating lymphocytes (sTILs). pTB and sTILs were analyzed in 230 surgically resected small intestinal adenocarcinomas, as recommended by the International Tumor Budding Consensus Conference (ITBCC) and the International TILs Working Group (ITWG). Read More

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January 2021

[Pathological characteristics of colorectal adenoma with submucosal pseudoinvasion].

Zhonghua Bing Li Xue Za Zhi 2021 Jan;50(1):32-37

Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.

To investigate the pathomorphological characteristics of colorectal adenoma with submucosal pseudoinvasion and to summarize the corresponding pseudoinvasion patterns. The clinicopathological data of 9 cases of colorectal adenoma were collected at 989 Hospital of PLA Joint Logistics Support Force (4 cases) and Beijing Chaoyang Hospital, Capital Medical University (5 cases), from 2016 to 2019. retrospectively, and the histomorphological characteristics and immunophenotypes were analyzed, and discussed in light of the relevant literature. Read More

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January 2021

Application of endoscopic submucosal dissection in duodenal space-occupying lesions.

World J Clin Cases 2020 Dec;8(24):6296-6305

Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China.

Background: Endoscopic submucosal dissection (ESD) has been advocated by digestive endoscopists because of its comparable therapeutic effect to surgery, reduced trauma, faster recovery, and fewer complications. However, ESD for lesions of the duodenum is more challenging than those occurring at other levels of the gastrointestinal tract due to the thin intestinal wall of the duodenum, narrow intestinal space, rich peripheral blood flow, proximity to vital organs, and high risks of critical adverse events including intraoperative and delayed bleeding and perforation. Because of the low prevalence of the disease and the high risks of severe adverse events, successful ESD for lesions of the duodenum has rarely been reported in recent years. Read More

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December 2020