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Gastrointestinal tumor

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https://www.readbyqxmd.com/read/29330096/selenoprotein-h-controls-cell-cycle-progression-and-proliferation-of-human-colorectal-cancer-cells
#1
REVIEW
Martin Bertz, Katrin Kühn, Solveigh C Koeberle, Mike F Müller, Doerte Hoelzer, Karolin Thies, Stefanie Deubel, René Thierbach, Anna P Kipp
Selenoprotein H (SELENOH) is supposed to be involved in redox regulation as well as in tumorigenesis. However, its role in healthy and transformed cells of the gastrointestinal tract remains elusive. We analysed SELENOH expression in cells depending on their selenium supply and differentiation status and found that SELENOH expression was increased in tumor tissue, in undifferentiated epithelial cells from mice and in colorectal cancer lines as compared to more differentiated ones. Knockdown studies in human colorectal cancer cells revealed that repression of SELENOH decreased cellular differentiation and increased proliferation and migration...
January 9, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29326972/aggressive-neuroendocrine-tumor-of-the-ovary-with-multiple-metastases-treated-with-everolimus-a-case-report
#2
Michiko Kaiho-Sakuma, Masafumi Toyoshima, Mika Watanabe, Asami Toki, Satomi Kameda, Takamichi Minato, Hitoshi Niikura, Nobuo Yaegashi
•Neuroendocrine tumors (NETs) frequently occur in the lungs or the gastrointestinal tract; they are uncommon in the ovary.•The mammalian target of rapamycin (mTOR) pathway has been reported as a treatment for advanced NETs.•We describe a patient with an aggressive primary ovarian NET, successfully treated with everolimus (an mTOR inhibitor).
February 2018: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/29325292/-therapeutic-effect-of-transcatheter-arterial-chemoembolization-combined-with-ultrasound-guided-microwave-ablation-for-treatment-of-liver-cancer-in-special-sites
#3
A Liu, W Xu, H Xu, Y Wang, Y M Gu
Objective: To investigate the efficacy and clinical value of transcatheter arterial chemoembolization (TACE) combined with ultrasound-guided microwave ablation for the treatment of liver cancer in special sites. Methods: The patients with liver cancer in special sites (the liver cancer was adjacent to the gallbladder, dome of diaphragm, gastrointestinal tract, heart, great vessels, and portal vein, with the shortest distance from the tumor to the organ/lumen < 0.5 cm ) were enrolled as treatment group, and the patients with primary liver cancer in normal sites treated in our hospital during the same period were randomly enrolled as control group...
December 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29325243/-comments-on-the-2017-update-version-of-the-consensus-on-pathologic-diagnosis-of-gastrointestinal-stromal-tumor
#4
(no author information available yet)
No abstract text is available yet for this article.
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29324374/ileal-gist-presenting-with-bacteremia-and-liver-abscess-a-case-report-and-review-of-literature
#5
Marina Gorelik, Braulio Sabates, Adel Elkbuli, Tony Dunne
INTRODUCTION: Small intestine gastrointestinal stromal tumors can infrequently present with intra-abdominal abscess, perforation, obstruction or fistula. Tumor-small intestine fistula is a rare phenomenon and occurs as a result of GISTs' propensity to cause mucosal ulceration. This allows bacteria from the gut to gain access to the systemic circulation and predisposes the patient to bacteremia and pyogenic liver abscess. PRESENTATION OF CASE: We present a case of a 63-year-old female whose initial symptoms included fever, nausea, vomiting and right upper quadrant pain...
December 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29323081/primary-signet-cell-adenocarcinoma-of-bladder
#6
Prateek Kinra, S P Rashmi, Aftab Alam, Harkirat Singh, S C Dash
Primary signet cell cancer of the urinary bladder is a relatively rare entity. Since there is no mucinous epithelium in the bladder, It is proposed that the tumor arises from metaplastic urothelium. Two thirds of the tumours are mucin secreting, in most of which the site of the deposition is either extracellular or intracellular displacing the nucleus to a peripheral crescent, giving the cells a signet ring appearance. The tumours are most often infiltrative and diffusely involving the majority of the bladder akin to its name sake in stomach...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321669/phenotypic-characteristics-of-colorectal-cancer-in-brca1-2-mutation-carriers
#7
Albert Grinshpun, Naama Halpern, Roy Zvi Granit, Ayala Hubert, Tamar Hamburger, Yael Laitman, Einat Shacham-Shmueli, Yehudit Peerless, Eitan Friedman, Tamar Peretz
Mutations in the BRCA1/2 genes were recently shown to be associated with an increased risk for colorectal cancer. We characterized the largest cohort available of BRCA1/2 mutation carriers with colorectal cancer. We analyzed 32 patients with lower gastrointestinal cancers and germline BRCA1/2 mutations from two large academic hospital registries; 91% of patients were of Ashkenazi ancestry, 78% were women, and 62.5% were carriers of BRCA1 gene mutations. A high percentage of colorectal tumors (34.5%) had a mucinous histology and were located atypically in the left colon...
January 10, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29321555/fourier-transform-infrared-microscopy-enables-guidance-of-automated-mass-spectrometry-imaging-to-predefined-tissue-morphologies
#8
Jan-Hinrich Rabe, Denis A Sammour, Sandra Schulz, Bogdan Munteanu, Martina Ott, Katharina Ochs, Peter Hohenberger, Alexander Marx, Michael Platten, Christiane A Opitz, Daniel S Ory, Carsten Hopf
Multimodal imaging combines complementary platforms for spatially resolved tissue analysis that are poised for application in life science and personalized medicine. Unlike established clinical in vivo multimodality imaging, automated workflows for in-depth multimodal molecular ex vivo tissue analysis that combine the speed and ease of spectroscopic imaging with molecular details provided by mass spectrometry imaging (MSI) are lagging behind. Here, we present an integrated approach that utilizes non-destructive Fourier transform infrared (FTIR) microscopy and matrix assisted laser desorption/ionization (MALDI) MSI for analysing single-slide tissue specimen...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319494/risk-of-tumor-progression-in-colon-carcinoma-resection-and-perioperative-prophylaxis-with-polyvalent-immunoglobulins-per-aspera-ad-astra
#9
Reinhard Lissner, Martin Gasser, Anna M Waaga-Gasser, Barry G Woodcock
There is strong evidence that tumor progression in the postoperative period is attributable to the influx of lipopolysaccharides (LPS) into the blood from the gastrointestinal (GI) lumen. Although several research groups have emphasized the need to neutralize LPS antigens from the GI tract to prevent tumor progression and reduce the inflammatory response, a therapeutic option to achieve this has not been put forward hitherto. Enterally applied immunoglobulins (IgG) in the form of colostrum concentrates are able to neutralize LPS antigens from the GI tract and to reduce the inflammatory response during abdominal surgery...
January 10, 2018: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29318911/comparison-of-three-prognostic-models-for-predicting-cancer-specific-survival-among-patients-with-gastrointestinal-stromal-tumors
#10
Hani Oweira, Jan Schmidt, Arianeb Mehrabi, Hasan Kulaksiz, Paul Schneider, Othmar Schöb, Anwar Giryes, Omar Abdel-Rahman
AIM: To evaluate the predictive value for cancer-specific survival of the models of the American Joint Committee on Cancer (AJCC) stage, NIH and Armed Forces Institute of Pathology (AFIP) among patients with gastrointestinal stromal tumors (GISTs). METHODS: Surveillance, Epidemiology and End Results database (2010-2014) was accessed. Overall survival analysis and adjusted cancer-specific Cox regression hazard was calculated. RESULTS: For gastric GISTs, concordance-index according to AJCC was 0...
January 10, 2018: Future Oncology
https://www.readbyqxmd.com/read/29318761/suitability-of-the-cellienttm-cell-block-method-for-diagnosing-soft-tissue-and-bone-tumors
#11
W Song, B M van Hemel, A J H Suurmeijer
BACKGROUND: The diagnosis of tumors of soft tissue and bone (STB) heavily relies on histological biopsies, whereas cytology is not widely used. CellientTM cell blocks often contain small tissue fragments. In addition to Hematoxylin and Eosin (H&E) interpretation of histological features, immunohistochemistry (IHC) can be applied after optimization of protocols. The objective of this retrospective study was to see whether this cytological technique allowed us to make a precise diagnosis of STB tumors...
January 10, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29318164/mixed-adenoneuroendocrine-carcinoma-of-the-gastroesophageal-junction-a-rare-find
#12
Paurush Ambesh, Joseph Weissbrot, Sabina Ratner, Ankur Sinha, Ravikaran Patti, Jasminka Balderacchi, Michael Marcelin, Lawrence Wolf, Stephan Kamholz
Neoplastic lesions that demonstrate neuroendocrine features are rare. However, esophageal tumors containing both adenocarcinomatous and neuroendocrine components are exceedingly rare. Mixed adenoneuroendocrine carcinomas (MANECs) are gastrointestinal tumors with both adenocarcinomatous and neuroendocrine differentiation. They have a tendency for early metastases but clinically manifest relatively late. Imaging studies are often nonspecific with regard to tumor type, and a histopathologic study of biopsy material is required for definitive diagnosis...
October 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/29317947/esophageal-granular-cell-tumor-a-case-and-review-of-the-literature
#13
Emmanuel Ofori, Daryl Ramai, Ying X Lui, Madhavi Reddy
Granular cell tumors (GCTs) are rare and benign tumors that can occur at any anatomical site. GCTs are thought to originate from nerve cells, particularly Schwann cells. Their name derives from the fact that an accumulation of cytoplasmic lysosomes imparts the tumor with a granular appearance. They are most commonly observed in the oral cavity, skin and subcutaneous tissue, breast, and respiratory tract. GCTs rarely affect the gastrointestinal tract. We report a 56-year-old female with a medical history of human immunodeficiency virus, hepatitis C, and cholelithiasis, who presented with abdominal pain...
December 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/29317945/primary-jejunal-adenocarcinoma-presenting-as-bilateral-ovarian-metastasis
#14
Emmanuel Ofori, Daryl Ramai, Charilaos Papafragkakis, Kinesh Changela, Mahesh Krishnaiah
Small intestinal tumors are rare with adenocarcinoma of the small intestine accounting for less than 2% of all gastrointestinal cancers. Primary jejunal adenocarcinoma constitutes a minute portion of small intestine adenocarcinomas. Clinically, this cancer presents at latter stages of its progression, mainly due to vague and non-specific symptoms, and the difficulty encountered in accessing the jejunum on upper endoscopy. Diagnosis of jejunal adenocarcinoma is usually inconclusive with the use of computed tomography (CT) scan, small bowel series, or upper endoscopy...
December 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/29317942/carcinoids-and-capsules-a-case-series-highlighting-the-utility-of-capsule-endoscopy-in-patients-with-small-bowel-carcinoids
#15
Michael G Noujaim, Jonathan Green, May Min, Christopher R Schlieve, Krunal Patel, Mitchell Cahan, David Cave
Background: Neuroendocine tumors (NETs) or carcinoids arise at many different sites of the gastrointestinal tract. The small intestine is the most common site for NETs. Diagnosing small bowel carcinoids remains challenging given their non-specific presentations and the overall low incidence of small bowel tumors. Video capsule endoscopy (VCE) has significanly improved our ability to detect small bowel malignancies. We explore the value of VCE in the initial workup and management of a series of small bowel carcinoid patients...
December 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/29317235/differentiating-breast-carcinoma-with-signet-ring-features-from-gastrointestinal-signet-ring-carcinoma-assessment-of-immunohistochemical-markers
#16
Yiang Hui, Yihong Wang, Gahie Nam, Jacqueline Fanion, Ashlee Sturtevant, Kara A Lombardo, Murray B Resnick
Signet-ring morphology is recognized throughout the gastrointestinal tract. However, this pattern may be observed in other primary sites giving rise to diagnostic challenges in the work-up of metastases. Relatively newer immunohistochemical markers have not been evaluated in this context. We assessed expression patterns of several common immunohistochemical markers in tumors with signet-ring morphology to delineate a pragmatic approach to this differential diagnosis. Primary breast and gastrointestinal carcinomas showing signet-ring features were reviewed...
January 6, 2018: Human Pathology
https://www.readbyqxmd.com/read/29317167/sirt1-activator-isolated-from-artificial-gastric-juice-incubate-of-total-saponins-in-stems-and-leaves-of-panax-ginseng
#17
Xiu-Wei Yang, Li-Yuan Ma, Qi-Le Zhou, Wei Xu, You-Bo Zhang
Panax ginseng as a traditional Chinese medicine has been extensively used for the treatment of many diseases, especially in prolonging life and anti-tumor. Dammarane-type triterpenoids from P. ginseng have diverse beneficial effects and their chemical structures can be modified in the gastrointestinal tract after oral administration. In this paper, the dammarane-type triterpenoids were isolated from artificial gastric juice incubate of total saponins in the stems and leaves of P. ginseng through column chromatographic methods and their chemical structures were determined based on spectral data...
December 30, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29316583/-foreign-body-ingestion-a-rare-cause-of-abdominal-pain
#18
Philipp Kasper, Fabian Kütting, Hans Anton Schlößer, Stefan Paul Mönig, Tobias Goeser, Natalie Jaspers
HISTORY AND FINDINGS UPON ADMISSION:  A 50-year-old man presented at the emergency unit with abdominal pain in the right lower quadrant and dysuria. He described an increase in pain during micturition. EXAMINATIONS:  After multiple examinations (CT-scan, MR-scan, ileocolonoscopy) were performed to no avail, a toothpick was detected in the terminal ileum during an ultrasound scan of the small intestine. Prompted elevation of intra-abdominal pressure led to migration of the radiolucent sharp foreign body into the wall of the urinary bladder, inducing pain...
January 2018: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29315500/long-term-outcome-of-dasatinib-first-line-treatment-in-gastrointestinal-stromal-tumor-a-multicenter-2-stage-phase-2-trial-swiss-group-for-clinical-cancer-research-56-07
#19
Michael Montemurro, Angela Cioffi, Julien Dômont, Piotr Rutkowski, Arnaud D Roth, Roger von Moos, Roman Inauen, Maud Toulmonde, Roger O Burkhard, Claudio Knuesli, Sebastian Bauer, Philippe Cassier, Heike Schwarb, Axel Le Cesne, Dieter Koeberle, Daniela Bärtschi, Daniel Dietrich, Christine Biaggi, John Prior, Serge Leyvraz
BACKGROUND: Tyrosine kinase inhibitors (TKIs) have improved the outcome of patients with gastrointestinal stromal tumors (GISTs), but most patients eventually develop resistance and progress. Dasatinib is a potent inhibitor of BCR-ABL, KIT, and SRC family kinases as well as imatinib-resistant cells. In GISTs, response evaluation is routinely done using computed tomography (CT) and 18 F-fluorodeoxyglucose positron emission tomography coupled to CT (FDG-PET/CT) for early response assessment and outcome prediction...
January 9, 2018: Cancer
https://www.readbyqxmd.com/read/29315090/incidence-and-risk-factors-for-anastomotic-failure-in-1594-patients-treated-by-transanal-total-mesorectal-excision-results-from-the-international-tatme-registry
#20
Marta Penna, Roel Hompes, Steve Arnold, Greg Wynn, Ralph Austin, Janindra Warusavitarne, Brendan Moran, George B Hanna, Neil J Mortensen, Paris P Tekkis
OBJECTIVE: To determine the incidence of anastomotic-related morbidity following Transanal Total Mesorectal Excision (TaTME) and identify independent risk factors for failure. BACKGROUND: Anastomotic leak and its sequelae are dreaded complications following gastrointestinal surgery. TaTME is a recent technique for rectal resection, which includes novel anastomotic techniques. METHODS: Prospective study of consecutive reconstructed TaTME cases recorded over 30 months in 107 surgical centers across 29 countries...
January 5, 2018: Annals of Surgery
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