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Pancreas neoplasm

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https://www.readbyqxmd.com/read/29164413/comparison-of-recurrence-between-pancreatic-and-duodenal-neuroendocrine-neoplasms%C3%A2-after-curative-resection-a-single-institution-analysis
#1
Toshihiko Masui, Asahi Sato, Kenzo Nakano, Yuichiro Uchida, Akitada Yogo, Takayuki Anazawa, Kazuyuki Nagai, Yoshiya Kawaguchi, Kyoichi Takaori, Shinji Uemoto
BACKGROUND: The primary site of a neuroendocrine neoplasms (NEN) around the head of the pancreas is sometimes difficult to assess before resection, and the characteristics of the primary site around this region have not been elucidated for recurrence after curative resection. In this study, the clinicopathologic characteristics of pancreatic NEN (PanNEN) and duodenal NEN (DuNEN) were evaluated, and the risk factors as well as the recurrence types after resection were investigated. METHODS: Consecutively diagnosed NEN patients at the authors' hospital from January 2000 to July 2016 were evaluated in this study...
November 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29158190/prevalence-of-microsatellite-instability-in-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#2
R M Lupinacci, A Goloudina, O Buhard, J B Bachet, R Maréchal, P Demetter, J Cros, A Bardier-Dupas, A Collura, P Cervera, A Scriva, S Dumont, P Hammel, A Sauvanet, C Louvet, J-R Delpéro, F Paye, J-C Vaillant, T André, J Closset, J-F Emile, J-L Van Laethem, V Jonchère, I Abd Alsamad, M Antoine, A Rodenas, J F Fléjou, N Dusetti, J Iovanna, A Duval, M Svrcek
Microsatellite instability (MSI) due to mismatch repair deficiency (dMMR) is detected in a small proportion of pancreatic ductal adenocarcinomas (PDACs). dMMR and MSI have been associated with responses of metastatic tumors, including PDACs, to immune checkpoint inhibitor therapy. We performed immunohistochemical analyses of a 445 PDAC specimens, collected from consecutive patients at multiple centers, to identify those with dMMR, based on loss of mismatch repair proteins MLH1, MSH2, MSH6, and/or PMS2. We detected dMMR in 1...
November 17, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29145864/intraductal-tubulopapillary-neoplasm-itpn-of-the-pancreas-associated-with-an-invasive-component-a-case-report-with-review-of-the-literature
#3
Stefanie Kuscher, Hartmut Steinle, Afschin Soleiman, Dietmar Öfner, Stefan Schneeberger, Georg Oberhuber
BACKGROUND: Intraductal tubulopapillary neoplasm (ITPN) depicts a distinct entity in the subgroup of premalignant epithelial tumors of the pancreas. Although the histomorphological and immunophenotypical characterization of ITPN has been described by several authors in terms of report of case series in the past, the rarity of that tumor subtype and similarity to other entities still makes identification of ITPN a challenge for radiologists and pathologists. To date, little is known about tubulopapillary carcinoma that can evolve from ITPN...
November 16, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29143892/update-in-the-therapy-of-advanced-neuroendocrine-tumors
#4
REVIEW
Inbal Uri, Shani Avniel-Polak, David J Gross, Simona Grozinsky-Glasberg
Neuroendocrine tumors (NETs) are rare neoplasms, with an estimated annual incidence of ~ 6.9/100,000. NETs arise throughout the body from cells of the diffuse endocrine system. More than half originate from endocrine cells of the gastrointestinal tract and the pancreas, thus being referred to as gastroenteropancreatic NETs (GEP-NETs). The only treatment that offers a cure is surgery; however, most patients are diagnosed with metastatic disease, and curative surgery is usually not an option. These patients can be offered long-term systemic treatment, for both symptomatic relief and tumor growth suppression...
November 16, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29143337/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-rapidly-xenografts-in-chicken-eggs-and-predicts-aggressiveness
#5
Zhefu Zhao, Nathalie Bauer, Ewa Aleksandrowicz, Libo Yin, Jury Gladkich, Wolfgang Gross, Jörg Kaiser, Thilo Hackert, Oliver Strobel, Ingrid Herr
Intraductal papillary mucinous neoplasm (IPMN) of the pancreas has a high risk of progressing to invasive pancreatic ductal adenocarcinoma (PDA), but experimental models for IPMN are largely missing. New experimental systems for the molecular characterization of IPMN and for personalized prognosis and treatment options for IPMN are urgently needed. We analyzed the potential use of fertilized chicken eggs for the culture of freshly resected IPMN tissue. We transplanted 49 freshly resected IPMN tissues into eggs and compared the growth characteristics to IPMN tissues transplanted into mice; this was followed by an analysis of histology, morphology and marker expression...
November 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29136961/validation-of-the-2012-international-consensus-guidelines-using-ct-and-mri-branch-duct-and-main-duct-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#6
https://www.readbyqxmd.com/read/29124124/preliminary-experience-with-pancreatic-sphincterotomy-as-treatment-for-intraductal-papillary-mucinous-neoplasm-associated-recurrent-pancreatitis
#7
Laura Bernardoni, Stefano Francesco Crinò, Giorgia De Conti, Maria Cristina Conti Bellocchi, Nicolò De Pretis, Antonio Amodio, Luca Frulloni, Armando Gabbrielli
Background and study aims:  Pancreatic intraductal papillary mucinous neoplasms (IPMN) are cystic tumors of the pancreas characterized by a malignant potential. IPMN have been associated with recurrent pancreatitis (RP). Obstruction of the main pancreatic duct by thick mucus has been postulated to be the cause of pancreatitis. In a few isolated reports, pancreatic sphincterotomy (PS) has been reported to reduce the frequency of pancreatitis. The aim of this study was to assess the efficacy of PS in patients with IPMN-associated RP...
November 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/29118556/long-non-coding-rna-in-pancreatic-adenocarcinoma-and-pancreatic-neuroendocrine-tumors
#8
REVIEW
Dimitrios Moschovis, Maria Gazouli, Maria Tzouvala, Antonios Vezakis, George Karamanolis
Interest in non-coding regions of DNA has been increasing since the mapping of the human genome revealed that human DNA contains far fewer genes encoding proteins than previously expected. However, analysis of the derivatives of DNA transcription (transcriptomics) revealed that the majority of the genetic material is transcribed into non-coding RNA (ncRNA), indicating that these molecules probably provide the functional diversity and complexity of the physiology of the human body that cannot be attributed to the proteins...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29116313/solitary-pancreatic-metastasis-from-breast-cancer-case-report-and-review-of-literature
#9
Márcio Apodaca-Rueda, Fábio Henrique Mendonça Chaim, Milena da Silva Garcia, Helena Paes de Almeida de Saito, Martinho Antonio Gestic, Murillo Pimentel Utrini, Francisco Callejas-Neto, Elinton Adami Chaim, Everton Cazzo
ABSTRACT: HASH(0x43504f8) CONTEXT: Pancreatic metastases from primary malignant tumors at other sites are rare, constituting about 2% of the neoplasms that affect the pancreas. Pancreatic metastasis from breast cancer is extremely rare and difficult to diagnose, because its clinical and radiological presentation is similar to that of a primary pancreatic tumor. CASE REPORT: A 64-year-old female developed a lesion in the pancreatic tail 24 months after neoadjuvant therapy, surgery and adjuvant radiation therapy for right-side breast cancer (ductal carcinoma)...
November 6, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29094047/solid-pseudopapillary-neoplasm-of-the-pancreas-clinicopathologic-feature-risk-factors-of-malignancy-and-survival-analysis-of-53-cases-from-a-single-center
#10
He Song, Ming Dong, Jianping Zhou, Weiwei Sheng, Banghua Zhong, Wei Gao
Introduction: Solid pseudopapillary neoplasm (SPN) of the pancreas is a rare tumor of low malignant potential. The aim of this study was designed to evaluate the clinicopathologic feature, predictive factors of malignancy, and survival from experience of a single center. Methods: 53 consecutive patients who underwent surgery for a pathologically definitive SPN were retrospectively reviewed. Results: A total of 53 cases included 7 male cases and 46 female cases with the median age of 35...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29089709/co-existence-of-diffuse-serous-cystadenoma-and-pancreatic-neuroendocrine-tumor
#11
Mallika Tewari, Shashikant Patne, Richa Katiyar, Dipanjan Biswas, H S Shukla
Diffuse serous cystic neoplasm (SCN) associated with pancreatic neuroendocrine tumor (PNET) is a rare finding reported previously in only three patients to the best of our knowledge. We herein present one such interesting report of a diffuse serous cystic adenoma (SCA) and co-existent PNET in a 25-year old lady who presented with abdominal pain for past 6 months. A triple-phase pancreatic protocol computed tomography (CT) scan revealed multiple cysts involving the entire pancreas. The cysts were thin walled, ranging from 2 to 8 cm in width, with no calcification or central scar that was confirmed at laparotomy...
October 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29081929/mucinous-cystic-neoplasms-in-male-patients-two-cases
#12
Shunsuke Tamura, Hirotaka Yamamoto, Shinichiro Ushida, Kazufumi Suzuki
Mucinous cystic neoplasms (MCNs) of the pancreas in male patients are very rare. Though few cases of MCNs in male patients have been reported, it is difficult to reveal them preoperatively. The first patient was a 50-year-old man and was incidentally found to have a cystic mass of 51 mm in the tail of the pancreas. We performed a distal pancreatectomy. The second patient was a 73-year-old man, incidentally found to have a cystic mass of 25 mm in diameter in the tail of the pancreas and a carcinoma of the bile duct...
October 3, 2017: Rare Tumors
https://www.readbyqxmd.com/read/29081926/mucinous-cystadenocarcinoma-of-the-breast-the-challenge-of-diagnosing-a-rare-entity
#13
Nektarios Koufopoulos, Christina Goudeli, John Syrios, Evangelos Filopoulos, Lubna Khaldi
Mucinous cystadenocarcinoma is an extremely rare variant of primary breast tumor which is histologically similar to mucinous cystadenocarcinoma of the ovary and pancreas. Herein we report a case of a 63 years old woman diagnosed with diverse histological types of non-synchronous rare primary breast tumors, a medullary carcinoma of the right breast and a mucinous cystadenocarcinoma of the left breast. Macroscopically the neoplasm appeared multilocular filled with mucoid material. Under light microscopy the cystic areas were lined by columnar cells with abundant intracellular and extracellular mucin...
October 3, 2017: Rare Tumors
https://www.readbyqxmd.com/read/29079172/akr1b10-expression-by-immunohistochemistry-in-surgical-resections-and-fine-needle-aspiration-cytology-material-in-patients-with-cystic-pancreatic-lesions-potential-for-improved-non-operative-diagnosis
#14
Joseph P Connor, Karla Esbona, Kristina A Matkowskyj
Cystic pancreatic tumors account for 10% of cystic lesions in the pancreas. Evaluation focuses on identifying lesions that require surgical resection due to actual or potential malignancy. Cystic tumors with malignant potential include mucinous cystic neoplasms (MCN), intraductal papillary mucinous neoplasm (IPMN), and cystic neuroendocrine tumors. The sensitivity of endoscopic fine-needle aspiration (FNA) to diagnose such lesions is low and a more accurate marker of malignant potential is needed. Aldo-keto reductase 1B10 (AKR1B10) was originally found in human hepatocellular carcinoma...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29073488/solid-pseudopapillary-tumor-of-the-pancreas-clinical-features-and-imaging-findings
#15
Dong-Li Li, Hong-Sheng Li, Yi-Kai Xu, Quan-Shi Wang, Rui-Ying Chen, Fang Zhou
This study aimed to report clinical features and CT, MRI, PET/CT findings of solid pseudopapillary tumor (SPT) of the pancreas. Thirty-four patients with pathologically proven SPT were retrospectively reviewed. Most patients were asymptomatic. SPTs in male patients mainly appeared as solid and near solid tumors. Mixed tumors and cystic tumors had larger size than solid and near solid tumors. Solid tumors and solid part of mixed tumors were T2 hyperintense and T1 hypointense and had progressive enhancement. Four tumors (80%) showed markedly even or uneven (18)F-FDG uptake...
October 13, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29072093/the-utility-of-68-ga-dotatate-positron-emission-tomography-computed-tomography-in-the-diagnosis-management-follow-up-and-prognosis-of-neuroendocrine-tumors
#16
Amit Tirosh, Electron Kebebew
Neuroendocrine tumors (NETs) are rare neoplasms that emerge mainly from the GI tract, pancreas and respiratory tract. The incidence of NETs has increased more than sixfold in the last decades. NETs typically express somatostatin receptors on their cell surface, which can be targeted by 'cold' somatostatin analogs for therapy or by 'hot' radiolabeled somatostatin analogs for tumor localization and treatment. 68-Gallium-DOTA peptides (DOTATATE, DOTATOC, DOTANOC) positron emission tomography/computed tomography is a highly accurate imaging modality for NETs that has been found to be more sensitive for NET detection than other imaging modalities...
October 26, 2017: Future Oncology
https://www.readbyqxmd.com/read/29072081/cystic-pancreatic-neuroendocrine-tumors-cpnets-a-systematic-review-and-meta-analysis-of-case-series
#17
Luis Hurtado-Pardo, Javier A Cienfuegos, Miguel Ruiz-Canela, Pablo Panadero, Alberto Benito, José Luis Hernández Lizoain
Cystic pancreatic neuroendocrine tumors represent 13% of all neuroendocrine tumors. The aim of this study is to analyze the phenotype and biologic behavior of resected cystic neuroendocrine tumors. A systematic review and meta-analysis were conducted until September 2016 using a search in Medline, Scopus, and EMBASE with the terms "cystic pancreatic endocrine neoplasm", "cystic islets tumors" and "cystic islets neoplasms". From the 795 citations recovered 80 studies reporting on 431 patients were selected. 87...
November 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/29069739/a-nation-wide-retrospective-epidemiological-study-of-gastroenteropancreatic-neuroendocrine-neoplasms-in-china
#18
Jin-Hu Fan, Yu-Qing Zhang, Su-Sheng Shi, Yuan-Jia Chen, Xing-Hua Yuan, Li-Ming Jiang, Shao-Ming Wang, Li Ma, Yu-Tong He, Chang-Yan Feng, Xi-Bin Sun, Qing Liu, Katrina Deloso, Yihebali Chi, You-Lin Qiao
BACKGROUND: Representative data on the gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) in Asian patients is rare, especially in China. This study aims to create a GEP-NENs profile of Chinese patients. METHODS: This was a hospital-based, nation-wide, and multi-center 10-year (2001-2010) retrospective study which collected GEP-NEN patients' information in tertiary referral hospitals. All 2010 inpatient GEP-NEN cases with confirmed pathology in the selected hospitals were included...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29063495/calcitonin-producing-neuroendocrine-neoplasms-of-the-pancreas-clinicopathological-study-of-25-cases-and-review-of-the-literature
#19
Silvia Uccella, Annika Blank, Roberta Maragliano, Fausto Sessa, Aurel Perren, Stefano La Rosa
Increased levels of circulating calcitonin are a clue in the diagnosis of medullary thyroid carcinoma. However, hypercalcitoninemia can also be related to other pathological conditions, including pancreatic neuroendocrine neoplasms (PanNENs). Ectopic hormonal production is not unusual in both functioning and non-functioning PanNENs; however, little is known about the frequency of calcitonin expression in these neoplasms. The aims of this study were to assess the frequency of calcitonin immunoreactivity in PanNENs, independently from serum calcitonin levels, and to evaluate the clinicopathological and prognostic features of calcitonin-immunoreactive (Cal-IR) PanNENs, including a comparison with cases already reported in the literature...
December 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/29054814/laparoscopic-management-of-solid-pseudo-papillary-neoplasm-of-pancreas-in-tertiary-care-center-from-south-india
#20
Palanisamy Senthilnathan, Kailash Chandra Dhaker, Vivek Kaje, Subrahmaneswara Babu Naidu, M Sarvani, Sandeep C Sabnis, Sivakumar Srivatsan Gurumurthy, V P Nalakilli, Natesan Anand Vijay, Subbaiah Rajapandian, Palanivelu Praveen Raj, Ramakrishnan Parthasarathi, Chinnusamy Palanivelu
BACKGROUND: Solid pseudo papillary neoplasm (SPN) of the pancreas which predominantly affects young women is a relatively indolent entity with favorable prognosis. Resection through minimal access approach helps to achieve better short term benefits. The aim of this study is to describe our experience in laparoscopic management of this disease. METHODS: A retrospective review of our prospectively maintained database revealed that 17 patients with SPN were managed with surgical resection between March 2009 and October 2016...
September 11, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
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