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neuroendocrin tumors of the pancreas

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https://www.readbyqxmd.com/read/28650600/clear-cell-neuroendocrine-tumor-of-the-pancreas-in-von-hippel-lindau-disease-a-case-report-and-literature-review
#1
(no author information available yet)
Clear cell neuroendocrine tumor (NET) of the pancreas is found in von Hippel-Lindau (VHL) disease, multiple endocrine neoplasia type I (MEN I), and sporadic form. Clear cell NETs are often misdiagnosed as metastatic renal cell carcinoma. A 47-year-old woman with VHL was found to have a mass in the pancreatic tail and two masses in the right kidney with two cysts. A distal pancreatectomy and right radical nephrectomy were performed. The pancreatic lesion was a well-circumscribed, golden-yellow solid mass, which was lobulated by septal fibrosis...
May 26, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28650564/the-impact-of-extrahepatic-disease-among-patients-undergoing-liver-directed-therapy-for-neuroendocrine-liver-metastasis
#2
Aslam Ejaz, Brad N Reames, Shishir Maithel, George A Poultsides, Todd W Bauer, Ryan C Fields, Matt Weiss, Hugo Pinto Marques, Luca Aldrighetti, Timothy M Pawlik
INTRODUCTION: Management of neuroendocrine liver metastasis (NELM) in the presence of extrahepatic disease (EHD) is controversial. We sought to examine outcomes of patients undergoing liver-directed therapy (resection, ablation, or both) for NELM in the presence of EHD using a large international cohort of patients. METHODS: 612 patients who underwent liver-directed therapy were identified from eight institutions. Postoperative outcomes, as well as and overall (OS) were compared among patients with and without EHD...
June 26, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28649475/solid-pseudopapillary-tumor-of-the-pancreas-an-unusual-cause-of-abdominal-pain
#3
Talal El Imad, Fady G Haddad, Mayurathan Kesavan, Liliane Deeb, Sherif Andrawes
Solid-pseudopapillary neoplasm (SPN) of the pancreas is a rare tumor that accounts for less than one percent of pancreatic tumors. The diagnosis could be challenging as SPN tend to manifest with nonspecific abdominal symptoms, variable radiological features, and inconsistent morphology. The cellular origin of SPN is unclear and might involve ductal, acinar and endocrine stem cells.  We report a rare case of a 27-year-old female who presented with intermittent abdominal pain for two years, associated with a decrease in appetite...
May 16, 2017: Curēus
https://www.readbyqxmd.com/read/28637502/clinicopathologic-characteristics-and-prognosis-of-gastroenteropancreatic-neuroendocrine-neoplasms-a-multicenter-study-in-south-china
#4
Cheng Fang, Wei Wang, Yu Zhang, Xingyu Feng, Jian Sun, Yujie Zeng, Ye Chen, Yong Li, Minhu Chen, Zhiwei Zhou, Jie Chen
BACKGROUND: Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are a heterogeneous group of rare tumors. Many issues in terms of epidemiologic features, pathogenesis, and treatment of GEP-NENs are still under discussion. Our study aimed to analyze the clinicopathologic characteristics and prognosis of Chinese patients with GEP-NENs. METHODS: Complete clinicopathologic data and survival information of 1183 patients with GEP-NENs treated between 2005 and 2015 were collected from five medical centers in Guangdong Province, China...
June 21, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28624649/diffuse-enlargement-of-the-pancreas-an-unusual-radiologic-presentation-of-a-pancreatic-neuroendocrine-tumor
#5
Oscar Santes, Jesús Morales-Maza, Ismael Domínguez-Rosado
No abstract text is available yet for this article.
June 14, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28624178/liver-transplantation-in-patients-with-liver-metastases-from-neuroendocrine-tumors-a%C3%A2-systematic-review
#6
Dimitrios Moris, Diamantis I Tsilimigras, Ioannis Ntanasis-Stathopoulos, Eliza W Beal, Evangelos Felekouras, Spiridon Vernadakis, John J Fung, Timothy M Pawlik
BACKGROUND: Liver transplantation to treat neuroendocrine tumors, especially in the setting of diffuse liver involvement not amenable to operative resection remains controversial. We sought to perform a systematic review of the current literature to summarize data on patients undergoing liver transplantation with neuroendocrine tumors liver metastases as the indication. METHODS: A systematic review was conducted in accordance to the Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines...
June 14, 2017: Surgery
https://www.readbyqxmd.com/read/28617885/the-role-of-wireless-capsule-endoscopy-wce-in-the-detection-of-occult-primary-neuroendocrine-tumors
#7
Manuele Furnari, Andrea Buda, Gabriele Delconte, Davide Citterio, Theodor Voiosu, Giovanni Ballardini, Flaminia Cavallaro, Edoardo Savarino, Vincenzo Mazzaferro, Emanuele Meroni
BACKGROUND AND AIMS: Neuroendocrine tumors (NETs) are a heterogeneous group of neoplasms with unclear etiology that may show functioning or non-functioning features. Primary tumor localization often requires integrated imaging. The European Neuroendocrine Tumors Society (ENETS) guidelines proposed wireless-capsule endoscopy (WCE) as a possible diagnostic tool for NETs, if intestinal origin is suspected. However, its impact on therapeutic management is debated. We aimed to evaluate the yield of WCE in detecting intestinal primary tumors in patients showing liver NET metastases when first-line investigations are inconclusive...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28614428/intrapancreatic-accessory-spleen
#8
Marcelo Protásio Dos Santos, Aline Pacheco de Rezende, Paulo Vicente Dos Santos, José Eduardo Gonçalves, Fernando Bray Beraldo, Adriano Pereira Sampaio
An asymptomatic 79-year-old woman, with incidental finding on abdominal ultrasound of a solid nodule in the tail of the pancreas. Magnetic resonance imaging showed a 12mm solid tumor. The suggested diagnosis was pancreatic neuroendocrine tumor. The pathological examination showed an intrapancreatic splenic tissue. This is a rare ectopic location of spleen tissue and it should be considered in the differential diagnosis of pancreatic solid tumors. RESUMO Mulher de 79 anos, com achado incidental em ultrassonografia de abdome de lesão sólida em cauda de pâncreas...
June 12, 2017: Einstein
https://www.readbyqxmd.com/read/28609761/clinical-usefulness-of-somatostatin-receptor-scintigraphy-in-japanese-patients-with-gastroenteropancreatic-neuroendocrine-tumors
#9
Sho Hasegawa, Noritoshi Kobayashi, Motohiko Tokuhisa, Ayumu Goto, Shoko Takano, Yuuki Takada, Tomohiro Kaneta, Ryutaro Mori, Ryusei Matsuyama, Itaru Endo, Shoji Yamanaka, Atsushi Nakajima, Tomio Inoue, Yasushi Ichikawa
BACKGROUND/AIMS: Somatostatin receptor (SSTR) scintigraphy (SRS) is the standard imaging modality for evaluation of gastroenteropancreatic neuroendocrine tumor (GEP-NET) in Western countries. However, this modality was not approved in Japan until recently. The purpose of this study was to evaluate the clinical efficacy of SRS for detecting GEP-NET in Japanese patients. METHODS: Japanese patients with advanced GEP-NET were enrolled and evaluated by the SRS and CT...
June 14, 2017: Digestion
https://www.readbyqxmd.com/read/28599853/post-obstructive-cyst-formation-in-pancreas-and-cystic-acinar-transformation-are-they-same
#10
Xuchen Zhang, Hongfa Zhu, Xiu Yang, Volkan N Adsay, Dhanpat Jain
Pancreatic "acinar cell cystadenoma" (PACA) is a rare benign pancreatic cystic lesion showing acinar cell differentiation. The neoplastic nature of PACA has been questioned and its exact pathogenesis remains unclear. To investigate that acinar cell differentiation is a non-specific metaplastic phenomenon that can occur in pancreatic ductal system, especially when chronically inflamed and dilated, and doesn't necessarily imply an acinar cell neoplasm, we retrospectively analyzed cases diagnosed as PACA and cases with post-obstructive cystic dilatation of pancreatic ducts for acinar cell differentiation using immunohistochemistry for trypsin...
April 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28599415/value-of-diffusion-weighted-magnetic-resonance-imaging-in-predicting-world-health-organization-grade-in-g1-g2-pancreatic-neuroendocrine-tumors
#11
Chuangen Guo, Xiaoling Zhuge, Xiao Chen, Zhongqiu Wang, Wenbo Xiao, Qidong Wang
The present study aimed to investigate the value of diffusion-weighted magnetic resonance imaging (DWI) in the grading of well-differentiated pancreatic neuroendocrine tumors (PanNETs). A total of 44 patients with histologically proven well-differentiated PanNET [grade 1 (G1) and grade 2 (G2) according to the World Health Organization (WHO) criteria] underwent pretreatment magnetic resonance imaging (MRI), which was retrospectively analyzed. The location, size, cystic or solid appearance, boundary, presence or absence of tumor contrast enhancement, and MRI signal of the tumor were assessed...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28593056/management-options-for-advanced-low-or-intermediate-grade-gastroenteropancreatic-neuroendocrine-tumors-review-of-recent-literature
#12
REVIEW
Vladimir Neychev, Electron Kebebew
Our understanding of the biology, genetics, and natural history of neuroendocrine tumors (NETs) of the gastrointestinal tract and pancreas has improved considerably in the last several decades and the spectrum of available therapeutic options is rapidly expanding. The management of patients with metastatic low or intermediate grade NETs has been revolutionized by the development of new treatment strategies such as molecular targeting therapies with everolimus and sunitinib, somatostatin analogs, tryptophan hydroxylase inhibitors, and peptide receptor radionuclide therapy that can be used alone or as a multimodal approach with or without surgery...
2017: International Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28589571/laparoscopic-total-pancreatectomy-for-multiple-endocrine-neoplasia-type-1-syndrome-associated-multifocal-non-functioning-pancreatic-neuroendocrine-tumor-a-case-report
#13
Palanisamy Senthinathan, Samrat Vijaykumar Jankar, Sandeep C Sabnis, Vivek Kaje, Sivakumar Srivatsan Gurumurthy, Natesan Anand Vijai, Vaiyapurigounder Palanisamy Nalankilli, Palanivelu Praveen Raj, Ramakrishanan Parthasarathi, Subbiah Rajapandian, Chinnusamy Palanivelu
Pancreatic neuroendocrine tumors are rare, accounting for less than 3% of all pancreatic tumors. Although laparoscopic pancreas-preserving surgery for managing sporadic pancreatic neuroendocrine tumors has been described in the literature, laparoscopic total pancreatectomy has rarely been reported. We present a 30-year-old man who was incidentally diagnosed with multiple endocrine neoplasia type 1 syndrome with parathyroid hyperplasia and a non-functioning pancreatic neuroendocrine tumor. He underwent laparoscopic total pancreatectomy with splenectomy...
June 6, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28579474/cytology-brushing-of-a-pancreas-cyst-wall-for-the-diagnosis-of-cystic-neuroendocrine-tumor-when-fna-fails
#14
Ihab I El Hajj, Robert E Emerson, Mohammad Al-Haddad
No abstract text is available yet for this article.
May 18, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28567109/ultrasound-guided-fine-needle-aspiration-of-hyperenhancing-lesion-suspicious-for-pancreatic-neuroendocrine-tumor-in-the-tail-of-pancreas-potential-pitfalls
#15
Kinda Hayek, Tatyana Kalinicheva, Vinod B Shidham
No abstract text is available yet for this article.
2017: CytoJournal
https://www.readbyqxmd.com/read/28562682/an-elevated-serum-alkaline-phosphatase-level-in-hepatic-metastases-of-grade-1-and-2-gastrointestinal-neuroendocrine-tumors-is-unusual-and-of-prognostic-value
#16
Maeva Andriantsoa, Solene Hoibian, Aurelie Autret, Marine Gilabert, Anthony Sarran, Patricia Niccoli, Jean-Luc Raoul
BACKGROUND: In our clinical practice we have observed that despite a high hepatic metastatic tumor burden, serum alkaline phosphatase (AP) levels are frequently normal in cases of metastatic neuroendocrine tumor (NET). PATIENTS AND METHODS: We retrospectively reviewed the records of patients with grade 1 and 2 NETs with liver metastases but without bone metastases seen at our institution in 2013. In total, 49 patients were included (22 female), with a median age of 60 years (range: 28 to 84 years)...
2017: PloS One
https://www.readbyqxmd.com/read/28553179/peptide-receptor-radionuclide-therapy-with-177-lu-dotatate-for-metastatic-neuroendocrine-tumor-occurring-in-association-with-multiple-endocrine-neoplasia-type-1-and-cushing-s-syndrome
#17
Chinna Naik, Sandip Basu
Neuroendocrine tumor (NET) occurring in association with other endocrine syndromes forms a distinct entity. The aim was to assess the therapy response profile of the routine peptide receptor radionuclide therapy (PRRT) in this relatively uncommon but clinically challenging subgroup of patients. A retrospective analysis was undertaken from the case records from those who were treated with (177)Lu-DOTATATE for metastatic NET. In addition to assessing the therapeutic efficacy, emphasis was also given to study lesional sites and scan pattern...
April 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28551649/rare-neoplasm-mimicking-neuoroendocrine-pancreatic-tumor-a-case-report-of-solitary-fibrous-tumor-with-review-of-the-literature
#18
Francesco E D'Amico, Cesare Ruffolo, Maurizio Romano, Marina DI Domenico, Marta Sbaraglia, Angelo P Dei Tos, Tiziana Garofalo, Antonio Giordano, Iccolò Bassi, Marco Massani
BACKGROUND: Solitary fibrous tumors (SFTs) are rare biological entities described mainly in the pleura. To date, in the pancreas, only 14 cases have been reported in the English literature. CASE REPORT: A 52-year-old male was diagnosed incidentally with a suspected neuroendocrine tumor (NET) of the pancreas. He underwent pancreatic enucleation of the mass, which, at final pathology, showed spindle cell proliferation set in a collagenous background and featuring the presence of hemangiopericytoma-like blood...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28547985/renal-cell-carcinoma-metastasizing-to-pancreatic-neuroendocrine-neoplasm-the-second-case-described-in-the-world-literature
#19
Katarzyna Bednarek-Rajewska, Przemysław Zalewski, Danuta Bręborowicz, Aldona Woźniak
Tumor-to-tumor metastases are very rare events. We report a case of a 64-year-old man who presented with a tumor of the pancreas. The patient underwent partial pancreatectomy. Frozen section diagnosis of the tumor was an endocrine neoplasm. Paraffin block slide examination revealed a tumor consisting of two components: pancreatic endocrine neoplasm at the periphery of the tumor and the central part composed of clear cells with delicate vessels. The results of immunohistochemical stains revealed renal cell carcinoma surrounded by pancreatic endocrine neoplasm, therefore representing an unusual case of renal cell carcinoma metastasizing to a pancreatic endocrine neoplasm...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28533666/comparison-of-imaging-based-and-pathological-dimensions-in-pancreatic-neuroendocrine-tumors
#20
Salvatore Paiella, Harmony Impellizzeri, Elisabetta Zanolin, Giovanni Marchegiani, Marco Miotto, Anna Malpaga, Riccardo De Robertis, Mirko D'Onofrio, Borislav Rusev, Paola Capelli, Sara Cingarlini, Giovanni Butturini, Maria Vittoria Davì, Antonio Amodio, Claudio Bassi, Aldo Scarpa, Roberto Salvia, Luca Landoni
AIM: To establish the ability of magnetic resonance (MR) and computer tomography (CT) to predict pathologic dimensions of pancreatic neuroendocrine tumors (PanNET) in a caseload of a tertiary referral center. METHODS: Patients submitted to surgery for PanNET at the Surgical Unit of the Pancreas Institute with at least 1 preoperative imaging examination (MR or CT scan) from January 2005 to December 2015 were included and data retrospectively collected. Exclusion criteria were: multifocal lesions, genetic syndromes, microadenomas or mixed tumors, metastatic disease and neoadjuvant therapy...
May 7, 2017: World Journal of Gastroenterology: WJG
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