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Gastrointestinal neuroendocrine tumor

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https://www.readbyqxmd.com/read/27920648/synchronous-adenocarcinoma-of-the-colon-and-rectal-carcinoid
#1
Vamshidhar Vootla, Rafeeq Ahmed, Masooma Niazi, Bhavna Balar, Suresh Nayudu
Primary colonic adenocarcinoma and synchronous rectal carcinoids are rare tumors. Whenever a synchronous tumor with a nonmetastatic carcinoid component is encountered, its prognosis is determined by the associate malignancy. The discovery of an asymptomatic gastrointestinal carcinoid during the operative treatment of another malignancy will usually only require resection without additional treatment and will have little effect on the prognosis of the individual. This article reports a synchronous rectal carcinoid in a patient with hepatic flexure adenocarcinoma...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27900037/long-term-results-of-hepatic-resection-or-orthotopic-liver-transplantation-in-patients-with-liver-metastases-from-gastrointestinal-neuroendocrine-tumors
#2
Enrico Maria Pasqual, Serena Bertozzi, Ambrogio P Londero, Stefano Bacchetti, Dario Lorenzin, Alberto Pasqualucci, Federico Moccheggiani, Alen Federici, Marco Vivaverlli, Andrea Risaliti
Hepatic metastases are one of the most important prognostic factors for survival among patients affected by gastrointestinal neuroendocrine tumors (NETs). The present study aims to evaluate the impact of surgery, including hepatic resection or orthotopic liver transplantation (OLT), on the outcome of patients affected by hepatic metastases from NETs, in terms of overall survival (OS). In this multicentric retrospective study, data was collected on 26 patients, who underwent surgery for hepatic metastases from NETs in two Italian University Clinics between January 1990 and December 2012; of which, 22 patients underwent hepatic resective surgery and 4 patients OLT...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900009/early-diagnosis-and-treatment-of-gastrointestinal-neuroendocrine-tumors
#3
Hong Shen, Zhuo Yu, Jing Zhao, Xiu-Zhen Li, Wen-Sheng Pan
The aim of the present retrospective analysis on the macroscopic appearance and pathological characteristics of gastrointestinal neuroendocrine tumors (NETs) was to investigate methods for their early diagnosis and treatment. A total of 78 patients were divided into submucosal NET and deeper invasion NET groups, according to the depth of tumor invasion exhibited by the patients. The clinicopathological characteristics and survival time of the NET patients were analyzed and compared. The pathological characteristics of the submucosal NETs group were investigated according to the diameter of the tumor (≤5...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27890494/neuroendocrine-tumors-of-the-lung-current-challenges-and-advances-in-the-diagnosis-and-management-of-well-differentiated-disease
#4
REVIEW
Andrew E Hendifar, Alberto M Marchevsky, Richard Tuli
Neuroendocrine tumors (NET) comprise a heterogeneous group of malignancies that arise from neuroendocrine cells throughout the body, most commonly originating from the lungs and gastrointestinal tract. Lung NET can be classified as well-differentiated (low-grade typical carcinoids [TC] and intermediate-grade atypical carcinoids [AC]) and poorly differentiated (high-grade large cell neuroendocrine carcinoma or small cell lung carcinoma). The incidence of these tumors is increasing, but disease awareness remains low among thoracic specialists who are often involved in the diagnosis and early treatment for these patients...
November 23, 2016: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/27878636/imaging-of-secretory-tumors-of-the-gastrointestinal-tract
#5
REVIEW
Yehia M ElGuindy, Sanaz Javadi, Christine O Menias, Corey T Jensen, Haitham Elsamaloty, Khaled M Elsayes
Gastrointestinal secretory tumors, or gastroenteropancreatic neuroendocrine tumors, encompass a wide array of endocrine cell tumors. The significance of these tumors lies in their ability to alter physiology through hormone production as we well as in their malignant potential. Functioning tumors may present earlier due to symptomatology; conversely, non-functioning tumors are often diagnosed late as they reach large sizes, causing symptoms secondary to local mass effect. Imaging aids in the diagnosis, staging, and prognosis and provides key information for presurgical planning...
November 23, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27871163/a-case-of-endoscopically-complete-remission-of-esophageal-neuroendocrine-tumors-by-concurrent-chemoradiation-therapy
#6
Myung Hee Kim, Hyun Yong Jeong, Jae Kyu Seong, Hee Seok Moon, Sun Hyung Kang, Duk Ki Kim
Neuroendocrine tumors (NETs) of the esophagus are extremely rare, aggressive and have a poor prognosis. Combined therapy using chemotherapy, radiotherapy and/or surgery appear effective. Here, we present a patient with a complaint of dysphagia who was diagnosed with this rare tumor. Upper gastrointestinal endoscope of a 46-year-old female revealed a localized ulcerative lesion in the middle esophagus. Histologic exam of biopsy specimens indicated a neuroendocrine carcinoma. The tumor cells were arranged in microtubular structures, with small and round cells containing scanty cytoplasm...
November 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/27869179/interleukins-17-and-23-in-patients-with-gastric-neoplasms
#7
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
https://www.readbyqxmd.com/read/27859270/impact-of-pancreatectomy-on-long-term-patient-reported-symptoms-and-quality-of-life-in-recurrence-free-survivors-of-pancreatic-and-periampullary-neoplasms
#8
Jordan M Cloyd, Hop S Tran Cao, Maria Q B Petzel, Jason W Denbo, Nathan H Parker, Graciela M Nogueras-González, Joseph S Liles, Michael P Kim, Jeffrey E Lee, Jean-Nicolas Vauthey, Thomas A Aloia, Jason B Fleming, Matthew H G Katz
BACKGROUND: Long term patient-reported symptoms and quality of life (QOL) are important outcome metrics following cancer operations, but have been poorly described in patients who have previously undergone pancreatectomy. METHODS: We conducted a cross-sectional survey of recurrence-free survivors of pancreatic ductal adenocarcinoma, periampullary carcinomas, and pancreatic neuroendocrine tumors who had undergone prior pancreatectomy. QOL and symptom burden were measured using the Functional Assessment of Cancer Therapy-Hepatobiliary Questionnaire, and psychosocial distress was measured using the Hospital Anxiety and Depression Scale...
November 11, 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27858880/endoscopic-ultrasound-without-tissue-acquisition-has-poor-accuracy-for-diagnosing-gastric-subepithelial-tumors
#9
Tae Won Lim, Cheol Woong Choi, Dae Hwan Kang, Hyung Wook Kim, Su Bum Park, Su Jin Kim
Incidental gastric subepithelial tumor (SET) is frequently found during endoscopy. Although endoscopic ultrasonography (EUS) can provide useful information, its diagnostic accuracy varies. Most of the potentially malignant tumors observed on EUS are hypoechoic lesions. Therefore, we aimed to investigate the diagnostic accuracy of EUS for hypoechoic lesions located in the submucosa or proper muscle layer. We also evaluated various characteristics for potential associations with diagnostic accuracy.A retrospective review was conducted of the medical records of 99 patients who were diagnosed with gastric SET and who underwent EUS with pathologic confirmation between March 2008 and April 2015...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27853738/pedunculated-gastric-neuroendocrine-tumor-a-case-report
#10
Kenichi Takeda, Shin-Ei Kudo, Fumio Ishida
Background and study aims: Gastric neuroendocrine tumors (NETs) are rare lesions that develop from neuroendocrine cells. NETs are classified into 3 types based on the rate of mitosis and Ki-67 labeling index; the NET G1 type is synonymously referred to as carcinoid. Gastric NETs are usually discovered as submucosal tumors during upper gastrointestinal endoscopic examination. This study reports a rare case of pedunculated gastric NET. The lesion was found as a result of gastroendoscopy. The gastric lesion was a pedunculated polyp with a reddish head...
November 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27846844/a-rare-case-with-synchronous-gastric-gastrointestinal-stromal-tumor-pancreatic-neuroendocrine-tumor-and-uterine-leiomyoma
#11
Elena Arabadzhieva, Atanas Yonkov, Sasho Bonev, Dimitar Bulanov, Ivanka Taneva, Alexandrina Vlahova, Tihomir Dikov, Violeta Dimitrova
BACKGROUND: Although gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract, they comprise less than 1% of all gastrointestinal tumors. Neuroendocrine tumors (NET) of the gastro-enteropancreatic system are also rare, representing about 2% of all gastrointestinal neoplasms. Pancreatic localization of NET is extremely uncommon-these tumors are only 1-5% of all pancreatic cancers. CASE PRESENTATION: We describe an unusual case with triple tumor localization-a gastric tumor, a formation in the pancreas, which involves the retroperitoneal space, and a uterine leiomyoma...
November 15, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27833387/neuroendocrine-neoplasms-of-liver-a-5-year-retrospective-clinico-pathological-study-applying-world-health-organization-2010-classification
#12
Deepak Kalyansingh Burad, Thomas Alex Kodiatte, Sayd Mohamed Rajeeb, Ashish Goel, Chundamannil Eapen Eapen, Banumathi Ramakrishna
AIM: To study the clinicopathological characteristics of neuroendocrine neoplasms (NEN) on liver samples and apply World Health Organization (WHO) 2010 grading of gastroenteropancreatic (GEP) NEN. METHODS: Clinicopathological features of 79 cases of NEN of the liver diagnosed between January 2011 to December 2015 were analyzed. WHO 2010 classification of GEP NEN was applied and the tumors were graded as G1, G2 or G3. Two more categories, D1/2 (discordant 1/2) and D2/3 (discordant 2/3) were also applied...
October 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27830182/donor-derived-hepatic-neuroendocrine-tumor-pause-before-proceeding-with-liver-retransplantation
#13
Yasir Al-Azzawi, Lance L Stein, Roshan Shrestha, Devina Bhasin, Steven J Citron, Raymond A Rubin
Gastrointestinal neuroendocrine tumors (NET) are rare but the age-adjusted incidence in the United States has increased, possibly due to improved radiographic and endoscopic detection. In advanced NET, hepatic metastases are common. Orthotopic liver transplant (OLT) is currently considered an acceptable therapy for selected patients with limited hepatic disease or liver metastases where complete resection is thought to have curative intent. The development of NET of donor origin is very uncommon after organ transplant, and it is unclear if the same treatment strategies applied to hepatic NET would also be efficacious after OLT...
July 2016: Transplantation Direct
https://www.readbyqxmd.com/read/27830037/goblet-cell-carcinoids-of-the-appendix-tumor-biology-mutations-and-management-strategies
#14
REVIEW
Santosh Shenoy
Malignant neoplasms of the appendix are rare and represent less than 1% of gastrointestinal cancers. Goblet cell carcinoids (GCC) tumors are a distinctive group of heterogeneous appendiceal neoplasm that exhibit unique clinical and pathologic features. This review focuses on the current diagnostic procedures, pathogenesis, possible signaling mechanisms and treatment options for GCC. Perspectives for future research are discussed. The tumor likely arises from pluripotent intestinal epithelial crypt base stem cells...
October 27, 2016: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27816207/loss-of-dpc4-smad4-expression-in-primary-gastrointestinal-neuroendocrine-tumors-is-associated-with-cancer-related-death-after-resection
#15
Christina L Roland, Lee F Starker, Y Kang, Deyali Chatterjee, Jeannelyn Estrella, Asif Rashid, Matthew H Katz, Thomas A Aloia, Jeffrey E Lee, Arvind Dasari, James C Yao, Jason B Fleming
BACKGROUND: Gastrointestinal neuroendocrine tumors have frequent loss of DPC4/SMAD4 expression, a known tumor suppressor. The impact of SMAD4 loss on gastrointestinal neuroendocrine tumors aggressiveness or cancer-related patient outcomes is not defined. We examined the expression of SMAD4 in resected gastrointestinal neuroendocrine tumors and its impact on oncologic outcomes. METHODS: Patients who underwent complete curative operative resection of gastrointestinal neuroendocrine tumors were identified retrospectively (n = 38)...
November 3, 2016: Surgery
https://www.readbyqxmd.com/read/27807302/sunitinib-ten-years-of-successful-clinical-use-and-study-in-advanced-renal-cell-carcinoma
#16
REVIEW
Robert J Motzer, Bernard Escudier, Andrew Gannon, Robert A Figlin
: : The oral multikinase inhibitor sunitinib malate was approved by the U.S. Food and Drug Administration in January 2006 for use in patients with advanced renal cell carcinoma (RCC). Since then, it has been approved globally for this indication and for patients with imatinib-resistant or -intolerant gastrointestinal stromal tumors and advanced pancreatic neuroendocrine tumors. As we mark the 10-year anniversary of the beginning of the era of targeted therapy, and specifically the approval of sunitinib, it is worthwhile to highlight the progress that has been made in advanced RCC as it relates to the study of sunitinib...
November 2, 2016: Oncologist
https://www.readbyqxmd.com/read/27802189/a-case-of-multicentric-low-grade-neuroendocrine-breast-tumor-with-an-unusual-histological-pattern
#17
Antonio D'Antonio, Maria Addesso, Domenico Memoli, Annamaria Cascone, Luigi Cremone
Neuroendocrine features are detectable in carcinomas of the breast either as scattered cells, that are recognized by their expression of neuroendocrine cell markers. Instead, pure breast carcinomas with neuroendocrine features (NEBC) are very rare and represent <1% of all breast cancer. Usually NEBC may be well or poorly differentiated and more frequent in older woman. These tumors showed variable histological pattern but a common feature is represented by expression of neuroendocrine markers. Here we report a case of a primary multicentric low-grade neuroendocrine carcinoma of the breast presented because of its rarity and for the unusual tubular and cribriform pattern resembling a well-differentiated conventional breast carcinoma...
October 14, 2016: Breast Disease
https://www.readbyqxmd.com/read/27783113/small-bowel-neoplasms-enhancement-patterns-and-differentiation-using-post-contrast-multiphasic-multidetector-ct
#18
Takayoshi Shinya, Ryota Inai, Takashi Tanaka, Noriaki Akagi, Shuhei Sato, Tadashi Yoshino, Susumu Kanazawa
PURPOSE: The purpose of the present study was to analyze the enhancement patterns of small bowel neoplasms on post-contrast multiphasic multidetector CT and to assess the diagnostic capacity for differentiating five tumor types. METHODS: We performed a retrospective study of data on 92 small bowel neoplasms. The neoplasms were categorized into five groups according to pathology findings, not imaging findings (23 adenocarcinomas; 22 lymphomas; 19 metastases; 18 gastrointestinal stromal tumors [GIST]; 10 neuroendocrine tumors [NET])...
October 25, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27769969/management-of-neuroendocrine-tumors
#19
REVIEW
Clement Chung
PURPOSE: Current strategies for managing neuroendocrine tumors (NETs) in adult patients are reviewed, with a focus on medication safety concerns. SUMMARY: NETs usually originate in the gastrointestinal or bronchopulmonary tract. Symptoms due to hormonal hypersecretion often occur in patients with foregut or midgut NETs or liver metastases. Surgical resection is recommended for most localized NETs, while systemic cytotoxic chemotherapy is typically used for high-grade and pancreatic tumors...
November 1, 2016: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/27761301/occult-primary-neuroendocrine-tumor-metastasis-to-the-breast-detected-on-screening-mammogram
#20
Fabiana Policeni, Brittany Pakalniskis, Limin Yang
Metastatic tumors are rare in the breast. Well-differentiated neuroendocrine tumors (WDNETs) are slow-growing neoplasms that arise from neuroendocrine cells, particularly in the gastrointestinal tract and bronchial tree. Metastatic WDNET to the breast is a rare entity. We present a case report of ileal WDNET metastatic to the breast which was initially identified as a small mass in the patient's left breast on screening mammography. Targeted ultrasound identified a suspicious mass, and ultrasound-guided percutaneous core biopsy was performed...
2016: Journal of Clinical Imaging Science
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