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Small bowel tumors

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https://www.readbyqxmd.com/read/29154080/changes-in-gene-expression-in-small-bowel-neuroendocrine-tumors-associated-with-progression-to-metastases
#1
Kendall J Keck, Patrick Breheny, Terry A Braun, Benjamin Darbro, Guiying Li, Joseph S Dillon, Andrew M Bellizzi, Thomas M O'Dorisio, James R Howe
BACKGROUND: Small bowel neuroendocrine tumors (SBNETs) present frequently with metastases, yet little is known about the molecular basis of this progression. This study sought to identify the serial differential expression of genes between normal small bowel, primary small bowel neuroendocrine tumors, and liver metastases. METHODS: RNA isolated from matched normal small bowel tissue, primary small bowel neuroendocrine tumors, and liver metastases in 12 patients was analyzed with whole transcriptome expression microarrays and RNA-Seq...
November 16, 2017: Surgery
https://www.readbyqxmd.com/read/29130230/-protective-measures-in-laparoscopic-resection-for-upper-or-mid-rectal-cancer-and-sigmoid-colon-cancer-with-transrectal-specimen-extraction-surgery
#2
Chuangang Fu, Zhuqing Zhou, Junyi Han, Bin Lu, Wei Gao, Zhe Zhu, Qixin Jiang, Fang Ji, Tao Du
OBJECTIVE: To introduce the use of a self-made specimen protective sleeve in laparoscopic resection for upper or mid rectal cancer and sigmoid colon cancer with transrectal specimen extraction surgery and the improvement of implantation method, so as to avoid and reduce bacterial contamination and tumor cell dissemination in abdominal cavity. METHODS: During June 2015 and May 2017, 48 cases of high located rectal or sigmoid colon cancer were operated laparoscopically with natural orifices specimen extraction surgery (NOSES) using a self-made specimen protecting sleeve...
October 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29119527/multifocality-in-small-bowel-neuroendocrine-tumors
#3
Alexandra Gangi, Emily Siegel, Galinos Barmparas, Simon Lo, Laith H Jamil, Andrew Hendifar, Nicholas N Nissen, Edward M Wolin, Farin Amersi
BACKGROUND: Neuroendocrine tumors (NETs) account for 30% of small bowel (SB) neoplasms. The objectives of this study were to evaluate the incidence of multifocality in primary small bowel neuroendocrine tumors (SBNETs) and to examine the associated outcomes. METHODS: Patients with multifocal SBNET were compared to those with a solitary lesion. Only patients who underwent diagnostic workup and surgical intervention at our institution were included in this study. The primary aim of our study was surgical outcomes and mortality and recurrence...
November 8, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29114832/association-between-use-of-thiopurines-or-tumor-necrosis-factor-antagonists-alone-or-in-combination-and-risk-of-lymphoma-in-patients-with-inflammatory-bowel-disease
#4
Magali Lemaitre, Julien Kirchgesner, Annie Rudnichi, Fabrice Carrat, Mahmoud Zureik, Franck Carbonnel, Rosemary Dray-Spira
Importance: An increased risk of lymphoma has been reported among patients receiving thiopurines for inflammatory bowel disease (IBD). The risk of lymphoma associated with anti-tumor necrosis factor (TNF) agents either alone or in combination with thiopurines is uncertain. Objective: To assess the risk of lymphoma associated with thiopurines and anti-TNF agents, used alone or in combination, for the management of IBD. Design, Setting, and Participants: Nationwide cohort study based on French National Health Insurance databases...
November 7, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29114614/preoperative-radiation-dose-escalation-for-rectal-cancer-using-a-concomitant-boost-strategy-improves-tumor-downstaging-without-increasing-toxicity-a-matched-pair-analysis
#5
Jillian R Gunther, Awalpreet S Chadha, Ui Sup Shin, In Ja Park, Kiran V Kattepogu, Jonathan D Grant, David C Weksberg, Cathy Eng, Scott E Kopetz, Prajnan Das, Marc E Delclos, Harmeet Kaur, Dipen M Maru, John M Skibber, Miguel A Rodriguez-Bigas, Y Nancy You, Sunil Krishnan, George J Chang
Purpose: Pathologic complete response to neoadjuvant chemoradiation therapy (CRT) is associated with improved outcomes for patients with locally advanced rectal cancer (LARC). Increased response rates have been reported with higher radiation doses, but these studies often lack long-term outcome and/or toxicity data. We conducted a case-control analysis of patients with LARC who underwent definitive CRT to determine the efficacy and safety of intensified treatment with a concomitant boost (CB) approach...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29110055/reproducible-imaging-features-of-biologically-aggressive-gastrointestinal-stromal-tumors-of-the-small-bowel
#6
Francisco J Maldonado, Shannon P Sheedy, Veena R Iyer, Stephanie L Hansel, David H Bruining, Cynthia H McCollough, William S Harmsen, John M Barlow, Joel G Fletcher
PURPOSE: To identify reproducible CT imaging features of small bowel gastrointestinal stromal tumors (GIST) that are associated with biologic aggressiveness. METHODS: Patients with histologically proven small bowel GISTs and CT enterography or abdominopelvic CT were included. Biologic aggressiveness was established based on initial histologic grading (very low risk to malignant), with "malignant" assigned if recurrence or metastases developed subsequently. CT exams were independently evaluated by three gastrointestinal radiologists for tumor size, growth pattern, enhancement, tumor borders, necrosis, calcification, ulceration, multiplicity, internal air or enteric contrast, nodal metastasis, liver metastasis, peritoneal metastasis, ascites, and draining vein size...
November 6, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29108282/igf-iec-expression-is-increased-in-secondary-compared-to-primary-foci-in-neuroendocrine-neoplasms
#7
Krystallenia I Alexandraki, Anastassios Philippou, Georgios Boutzios, Irini Theohari, Michael Koutsilieris, Ioanna Kassiani Delladetsima, Gregory A Kaltsas
Different Insulin-like growth factor-I (IGF-I) mRNA transcripts are produced by alternative splicing and particularly the IGF-IEc isoform has been implicated in the development and/or progression of various types of cancer. In the present study, we examined the potential role of IGF-IEc expression as a new immunohistochemical marker of aggressiveness in neuroendocrine neoplasms (NENs). We utilized immunohistochemical analysis in tissue specimens of 47 patients with NENs, to evaluate the expression of IGF-IEc (%) and Ki-67 proliferation index (%)...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29099567/duodenal-perforation-secondary-to-erlotinib-therapy-in-a-patient-with-non-small-cell-lung-cancer
#8
Rafiullah, Wardah Sayed Shah, Navid Abdul Majid, Rezwan Islam
Lung cancer is a lethal disease with high mortality, and treatment modality varies with type of tumor and stage of the disease. Targeted molecular therapies have been developed for patients with advanced non-small cell lung cancer. The presence of epidermal growth factor receptor (EGFR) mutation qualifies the patient for EGFR-TKI (tyrosine kinase inhibitor) therapy such as erlotinib, which is not without risk. We report an interesting case of duodenal perforation secondary to erlotinib therapy. This is the second reported case of bowel perforation after erlotinib therapy in a patient with advanced non-small cell lung cancer...
February 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29069279/phase-ii-study-of-nab-paclitaxel-in-refractory-small-bowel-adenocarcinoma-and-cpg-island-methylator-phenotype-cimp-high-colorectal-cancer
#9
M Overman, L Adam, K Raghav, J Wang, B Kee, D Fogelman, C Eng, E Vilar, R Shroff, A Dasari, R Wolff, J Morris, Enusha Karunasena, R Pisanic, N Azad, S Kopetz
Background: Hypermethylation of promoter CpG islands (CIMP) represents a unique pathway for the development of colorectal cancer (CRC), characterized by lack of chromosomal instability and a low rate of adenomatous polyposis coli (APC) mutations, which have both been correlated with taxane resistance. Similarly, small bowel adenocarcinoma (SBA), a rare tumor, also has a low rate of APC mutations. This phase II study evaluated taxane sensitivity in SBA and CIMP-high CRC. Patients and Methods: The primary objective was Response Evaluation Criteria in Solid Tumors version 1...
October 23, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29067602/prophylactic-cholecystectomy-at-time-of-surgery-for-small-bowel-neuroendocrine-tumor-does-not-increase-postoperative-morbidity
#10
Andrew J Sinnamon, Madalyn G Neuwirth, Charles C Vining, Catherine E Sharoky, Yu-Xiao Yang, Rachel R Kelz, Douglas L Fraker, Robert E Roses, Giorgos C Karakousis
BACKGROUND: Prophylactic cholecystectomy at time of surgery for small bowel neuroendocrine tumor (SBNET) has been advocated, as these patients often go on to require somatostatin analogue therapy, which is known to increase risk of cholestasis and associated complications. Little is known regarding patterns of adoption of this practice or its associated morbidity. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database (2008-2014) was queried to identify patients who underwent SBNET resection...
October 24, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29049340/pressurized-intra-peritoneal-aerosol-chemotherapy-in-patients-suffering-from-peritoneal-carcinomatosis-of-pancreatic-adenocarcinoma
#11
Tanja Khosrawipour, Veria Khosrawipour, Urs Giger-Pabst
BACKGROUND: Patients suffering from peritoneal carcinomatosis of pancreatic adenocarcinoma were treated with Pressurized Intra Peritoneal Aerosol Chemotherapy (PIPAC), initial clinical findings are presented. METHODS: Single institution, tertiary referral center certified for therapy of peritoneal disease. Prospective data collection of PIPAC therapy with doxorubicin 1.5 mg/m2 and cisplatin 7.5 mg/m2 of body surface delivered at intervals of six weeks. The outcome criteria were microscopic pathological response, survival and adverse events (v4...
2017: PloS One
https://www.readbyqxmd.com/read/29049187/a-myeloid-sarcoma-involving-the-small-intestine-kidneys-mesentery-and-mesenteric-lymph-nodes-a-case-report-and-literature-review
#12
REVIEW
Ping Wang, Quan Li, Li Zhang, Hong Ji, Cheng-Zhou Zhang, Bin Wang
RATIONALE: Myeloid sarcomas (MSs) are rare malignant hematological tumors. They most commonly occur in patients with acute or chronic myeloid leukemia. A de novo MS with no evidence of blood system disease is rare, but may represent the first sign of a systemic illness that precedes a full-blown disease. Herein, we report the computed tomography (CT) findings of an extremely rare case of a nonleukemic MS that progressed to acute myelogenous leukemia (AML) and simultaneously involved the small intestine, kidneys, mesentery, and mesenteric lymph nodes...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29046790/intraluminal-rectal-cancer-metastasis-to-the-small-bowel-an-extremely-rare-case-report
#13
Paraskevas Stamopoulos, Nikolaos Machairas, Stylianos Kykalos, Afrodite Nonni, Gregory Kouraklis, Georgios C Sotiropoulos
Prolonged survival in patients suffering from colorectal cancer (CRC) may lead to the emergence of rare metastatic sites that are not well-documented in the literature. We herein describe a very rare case of an intraluminal small intestinal metastasis in a patient with previously resected CRC. A 71-year-old Caucasian male patient with a history of rectosigmoid junction cancer was initially treated with anterior resection. The tumor was classified as pT3pN0 (0/26) M0, stage II. Eighteen months after the primary surgery, local recurrence was detected in the presacral region, and the patient received combined image-guided radiotherapy and chemotherapy...
October 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29044591/duodenal-localization-is-a-negative-predictor-of-survival-after-small-bowel-adenocarcinoma-resection-a-population-based-propensity-score-matched-analysis
#14
Alexander Wilhelm, Christian Galata, Ulrich Beutner, Bruno M Schmied, Rene Warschkow, Thomas Steffen, Walter Brunner, Stefan Post, Lukas Marti
BACKGROUND AND OBJECTIVES: This study assessed the influence of tumor localization of small bowel adenocarcinoma on survival after surgical resection. METHODS: Patients with resected small bowel adenocarcinoma, ACJJ stage I-III, were identified from the Surveillance, Epidemiology, and End Results database from 2004 to 2013. The impact of tumor localization on overall and cancer-specific survival was assessed using Cox proportional hazard regression models with and without risk-adjustment and propensity score methods...
October 16, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29033773/laparoscopic-resection-of-a-jejunal-mesenteric-pseudocyst
#15
Takumi Yamabuki, Masato Suzuoki, Tsuzuku Murakami, Satoshi Hirano
An unusual case of a jejunal mesenteric pseudocyst treated by laparoscopic resection is reported. A 44-year-old woman was admitted to our hospital with intermittent upper abdominal pain and diarrhea. Physical examination revealed slight periumbilical tenderness, and no masses were palpable. Contrast-enhanced computed tomography showed a 4-cm-sized nonenhancing high-density mass with a heterogeneous pattern on a proximal small bowel loop. Based on these findings, a gastrointestinal stromal tumor accompanied by hemorrhagic and cystic change, a mesenteric hematoma, or a desmoid tumor was diagnosed...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29024228/de-novo-hepatocellular-carcinoma-post-multivisceral-transplantation-in-a-child
#16
P Tran, S Zhou, L Wang, M Finegold, L Mascarenas, S Alexopolous, Y Genyk, N Kerkar
De novo hepatocellular carcinoma (HCC) post-transplantation in patients without viral hepatitis is extremely rare, with only three reported adult cases in the English literature. Here, we present a case of de novo HCC that developed in a 7-year-old female, who at 8 months of age received a liver, small bowel, spleen, and pancreas transplantation 6.5 years ago for gastroschisis and total parenteral nutrition (TPN)-related cirrhosis. The post-transplant course was complicated by Epstein-Barr virus (EBV) infection, post-transplant lymphoproliferative disease, and subsequent development of multifocal EBV-associated post-transplant smooth muscle tumors (EBV-PTSMT) in the small bowel 1 year and 10 months after transplantation, respectively...
November 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/29023527/dose-escalated-radiotherapy-for-unresectable-or-locally-recurrent-pancreatic-cancer-dose-volume-analysis-toxicity-and-outcome-of-28-consecutive-patients
#17
Sebastian Zschaeck, Bibiana Blümke, Peter Wust, David Kaul, Marcus Bahra, Hanno Riess, Fritz Klein, Marianne Sinn, Uwe Pelzer, Volker Budach, Pirus Ghadjar
PURPOSE: The role of radiotherapy for unresectable pancreatic cancer is controversial. A benefit of additional radiotherapy is supported by some observations. A dose-effect relationship was recently found by dose escalation employing image guided and intensity modulated radiotherapy. METHODS: We retrospectively evaluated 28 consecutive patients, all with history of extensive prior therapies for unresectable locally advanced/ recurrent pancreatic cancer (LAPC/LRPC)...
2017: PloS One
https://www.readbyqxmd.com/read/28994459/neural-network-dose-models-for-knowledge-based-planning-in-pancreatic-sbrt
#18
Warren G Campbell, Moyed Miften, Lindsey Olsen, Priscilla Stumpf, Tracey Schefter, Karyn A Goodman, Bernard L Jones
PURPOSE: Stereotactic body radiation therapy (SBRT) for pancreatic cancer requires a skillful approach to deliver ablative doses to the tumor while limiting dose to the highly sensitive duodenum, stomach, and small bowel. Here, we develop knowledge-based artificial neural network dose models (ANN-DMs) to predict dose distributions that would be approved by experienced physicians. METHODS: Arc-based SBRT treatment plans for 43 pancreatic cancer patients were planned, delivering 30-33 Gy in five fractions...
October 10, 2017: Medical Physics
https://www.readbyqxmd.com/read/28991107/discontinuation-of-biological-treatments-in-inflammatory-bowel-disease-a-concise-pragmatic-review
#19
Shomron Ben-Horin, Ren Mao, Yun Qiu, Minhu Chen
Despite the proven efficacy of biological drugs for inflammatory bowel disease, these therapies are costly and do carry some risks, providing incentive for exploring strategies to discontinue therapy in patients with prolonged remission. We presently review multiple cohort studies indicating the overall risk of relapse after stopping an anti-tumor necrosis factor (TNF) in inflammatory bowel disease patients is roughly 40% at 12 months after therapy cessation. Despite methodological differences across studies, it appears that patients without deep remission (ie, patients with endoscopic or biomarker evidence of inflammation) are at increased risk of relapse after stopping anti-TNF, as are those with high-adequate levels of anti-TNF before stopping...
September 29, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28989997/diaphragmatic-hernia-following-liver-resection-case-series-and-review-of-the-literature
#20
Francesco Esposito, Chetana Lim, Chady Salloum, Michael Osseis, Eylon Lahat, Philippe Compagnon, Daniel Azoulay
BACKGROUNDS/AIMS: Postoperative diaphragmatic hernia, following liver resection, is a rare complication. METHODS: Data of patients who underwent major hepatectomy for liver tumors, between 2011 and 2015 were retrospectively reviewed. The literature was searched for studies reporting the occurrence of diaphragmatic hernia following liver resection. RESULTS: Diaphragmatic hernia developed in 2.3% of patients (3/131) with a median delay of 14 months (4-31 months)...
August 2017: Annals of Hepato-Biliary-Pancreatic Surgery
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