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Cystic pancreatic tumors

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https://www.readbyqxmd.com/read/28698299/neat1-is-a-p53-inducible-lincrna-essential-for-transformation-suppression
#1
Stephano S Mello, Carolyn Sinow, Nitin Raj, Pawel K Mazur, Kathryn Bieging-Rolett, Daniela Kenzelmann Broz, Jamie F Conklin Imam, Hannes Vogel, Laura D Wood, Julien Sage, Tetsuro Hirose, Shinichi Nakagawa, John Rinn, Laura D Attardi
The p53 gene is mutated in over half of all cancers, reflecting its critical role as a tumor suppressor. Although p53 is a transcriptional activator that induces myriad target genes, those p53-inducible genes most critical for tumor suppression remain elusive. Here, we leveraged p53 ChIP-seq (chromatin immunoprecipitation [ChIP] combined with high-throughput sequencing) and RNA-seq (RNA sequencing) data sets to identify new p53 target genes, focusing on the noncoding genome. We identify Neat1, a noncoding RNA (ncRNA) constituent of paraspeckles, as a p53 target gene broadly induced by mouse and human p53 in different cell types and by diverse stress signals...
July 11, 2017: Genes & Development
https://www.readbyqxmd.com/read/28697137/clinical-profile-of-pancreatic-cystic-lesions-in-von-hippel-lindau-disease-a-series-of-48-patients-seen-at-a-tertiary-institution
#2
Ayush Sharma, Saurabh Mukewar, Santhi Swaroop Vege
OBJECTIVES: Little is known about the association between pancreatic cystic lesions (PCLs) with von Hippel-Lindau disease (VHLD). In this study, we describe the clinical presentation, type of PCLs, and risk for malignancy in PCLs in VHLD. METHODS: Patients given a diagnosis of both VHLD and PCLs were identified from electronic medical records at Mayo Clinic, Rochester, MN, from January 1, 2000, to January 1, 2016. Various demographic, clinical, and radiologic variables were recorded...
August 2017: Pancreas
https://www.readbyqxmd.com/read/28697136/circulating-epithelial-cells-in-intraductal-papillary-mucinous-neoplasms-and-cystic-pancreatic-lesions
#3
Katherine E Poruk, Vicente Valero, Jin He, Nita Ahuja, John L Cameron, Matthew J Weiss, Anne Marie Lennon, Michael Goggins, Laura D Wood, Christopher L Wolfgang
OBJECTIVES: Circulating epithelial cells (CECs) are identified in the blood of patients with intraductal papillary mucinous neoplasms (IPMNs) despite the absence of malignancy. We assessed the blood of patients undergoing resection for IPMN or other benign pancreatic lesions for CECs. METHODS: Peripheral blood was collected from 26 patients prior to pancreatic resection and filtered by the ISET (Isolation by Size of Epithelial Tumor Cells) method. Circulating epithelial cells were identified with antibodies to cytokeratin and Pdx1 (pancreas and duodenal homeobox protein 1), a pancreas marker...
August 2017: Pancreas
https://www.readbyqxmd.com/read/28693516/pancreatic-metastasis-from-invasive-pleomorphic-lobular-carcinoma-of-the-breast-a-rare-case-report
#4
Xiangjie Sun, Ke Zuo, Dan Huang, Baohua Yu, Yufan Cheng, Wentao Yang
BACKGROUND: Invasive pleomorphic lobular carcinoma (PLC) is an aggressive subtype of invasive lobular carcinoma of the breast, which has its own histopathological and biological features. The metastatic patterns for PLC are distinct from those of invasive ductal carcinoma. In addition, pancreatic metastasis from PLC is extremely rare. CASE PRESENTATION: We report a rare case of a 48-year-old woman presenting with clinical gastrointestinal symptoms and pancreatic metastasis of PLC...
July 11, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28693147/pancreatic-intraductal-tubulopapillary-neoplasm-with-associated-invasive-cancer-successfully-treated-by-total-pancreatectomy-a-case-report
#5
Yuji Fujimoto, Yoshito Tomimaru, Hiromi Tamura, Kozo Noguchi, Hirotsugu Nagase, Atsushi Hamabe, Masashi Hirota, Kazuteru Oshima, Tsukasa Tanida, Tomono Kawase, Shunji Morita, Hiroshi Imamura, Takashi Iwazawa, Kenzo Akagi, Masashi Yamamoto, Tsutomu Nishida, Shiro Adachi, Keizo Dono
A 74-year-old male was admitted to Departments of Surgery, Toyonaka Municipal Hospital (Osaka, Japan) for treatment of a pancreatic tumor. Contrast enhanced computed tomography (CT) revealed a mass with small cystic lesions in the pancreatic head and body. Fluorodeoxyglucose-positron emission tomography/CT revealed an abnormal uptake of fluorodeoxyglucose, corresponding to the mass lesions. Upper gastrointestinal endoscopy revealed rough mucosa near the opening of the accessory pancreatic duct, and the mucosa biopsy exhibited adenocarcinoma with no mucin observed...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28682431/uptodate-in-the-assessment-and-management-of-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#6
D Pagliari, A Saviano, M L Serricchio, A A Dal Lago, M G Brizi, F Lanza, R Manfredi, A Gasbarrini, F Attili
Intraductal Papillary Mucinous Neoplasms (IPMNs) are the most common cystic tumors of the pancreas and are considered premalignant lesions. IPMNs are characterized by the papillary growth of the ductal epithelium with rich mucin production, which is responsible for cystic segmental or diffuse dilatation of the main pancreatic duct (MPD) and/or its branches. According to the different involvement of pancreatic duct system, IPMNs are divided into main duct type (MD-IPMN), branch duct type (BD-IPMN), and mixed type (MT-IPMN)...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28650600/clear-cell-neuroendocrine-tumor-of-the-pancreas-in-von-hippel-lindau-disease-a-case-report-and-literature-review
#7
(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/28631390/metastatic-tonsillar-squamous-cell-carcinoma-masquerading-as-a-pancreatic-cystic-tumor-and-diagnosed-by-eus-guided-fna
#8
Ryan Glass, Sherif A Andrawes, Diane Hamele-Bena, Guo-Xia Tong
Metastatic carcinoma to the pancreas is uncommon and head and neck squamous carcinoma metastatic to the pancreas is extremely rare. Metastatic squamous cell carcinoma to the pancreas presents a unique diagnostic challenge: in addition to mimicking the rare primary squamous cell carcinoma of the pancreas based on cytologic, histologic, and immunohistochemical features, it may be mistaken for a cystic neoplasm of the pancreas because of its high predilection for cystic degeneration in metastatic sites. Herein, we report a case of tonsillar squamous cell carcinoma with a cystic pancreatic metastasis diagnosed by ultrasound-guided fine needle aspiration biopsy (EUS-FNA)...
June 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28627654/bioinformatics-analysis-of-transcription-profiling-of-solid-pseudopapillary-neoplasm-of-the-pancreas
#9
Yongping Zhang, Xu Han, Hao Wu, Yifeng Zhou
Solid pseudopapillary neoplasm (SPN) of the pancreas is a low-grade malignant neoplasm that accounts for ~5% of cystic pancreatic tumors and ~0.9‑2.7% of exocrine pancreatic tumors. The transcription profiling data (GSE43795) of 14 SPN and 6 control samples were downloaded from the Gene Expression Omnibus (GEO) database. Using the Limma package, Student's t‑tests were performed to identify differentially expressed genes (DEGs) between SPN and control samples [with the following criterion: False discovery rate (FDR)<0...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28625071/adult-gastric-duplication-an-unknown-condition-within-the-spectrum-of-gastric-submucosal-lesions
#10
Yurena Caballero Díaz, Macarena Centeno Haro, Ángel Turégano García, Juan Ramón Hernández Hernández
Gastric duplication is an uncommon condition in adults representing only 4-8% of all gastrointestinal duplications. It develops as a cystic growth within the thick gastric wall that is surrounded by a layer of smooth muscle and lined with gastric mucosa. It is usually asymptomatic but may present with nonspecific abdominal symptoms as well as cyst-related complications such as gastrointestinal (GI) bleeding, ulceration and even pancreatitis. They are difficult to distinguish from other gastric submucosal lesions and may also mimic a gastrointestinal tumor (GIST) or mucinous cyst of the pancreas...
June 19, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28619284/assessment-of-disease-aggression-in-cystic-pancreatic-neuroendocrine-tumors-a-ct-and-pathology-correlation-study
#11
Motoyo Yano, Sunil Misra, Amber Salter, Danielle H Carpenter
BACKGROUND/OBJECTIVES: There are inconsistencies in the literature regarding the clinical significance of cystic components in pancreatic neuroendocrine tumors (NET). This may be related to differences in the identification of cystic NET through imaging and/or pathology. Tumors may also be microscopically or macroscopically cystic. Our primary objective is to determine radiology-pathology correlation for the identification of cystic components. Our secondary objective is to determine if cystic components are associated with indices of tumor aggression...
May 27, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28599853/post-obstructive-cyst-formation-in-pancreas-and-cystic-acinar-transformation-are-they-same
#12
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
#13
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/28587436/pathology-comparative-study-on-the-characteristic-ct-signs-in-solid-pseudopapillary-neoplasm-of-the-pancreas
#14
Xi Bo Fu, Zhi Qiang Hao, Jin Yun He, Hai Shang, Qing Cai Fu, Xiang Dong Hua, Ye Fu Liu, Jie Lin
In order to analyze characteristic CT signs in the solid pseudopapillary tumor of the pancreas, a retrospective analysis was conducted on 49 patients with pseudopapillary tumor of the pancreas who where treated in Liaoning Cancer Hospital. All of the patients were confirmed by pathology, CT signs were analyzed and a pathology contrast was conducted. Furthermore, all cases had single lesions; 7 cases in the pancreatic head, 23 cases in the pancreatic body, 15 cases in the pancreatic body-tail and 4 cases in the pancreatic tail...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28586782/are-cystic-pancreatic-neuroendocrine-tumors-an-indolent-entity-results-from-a-single-center-surgical-series
#15
Salvatore Paiella, Giovanni Marchegiani, Marco Miotto, Anna Malpaga, Harmony Impellizzeri, Greta Montagnini, Tommaso Pollini, Chiara Nessi, Giovanni Butturini, Paola Capelli, Ilaria Posenato, Aldo Scarpa, Mirko D'Onofrio, Riccardo De Robertis, Sara Cingarlini, Letizia Boninsegna, Claudio Bassi, Roberto Salvia, Luca Landoni
No abstract text is available yet for this article.
June 7, 2017: Neuroendocrinology
https://www.readbyqxmd.com/read/28573215/molecular-histologic-and-radiologic-findings-of-high-grade-invasive-adenocarcinoma-arising-in-oncocytic-subtype-of-intraductal-papillary-mucinous-neoplasm-a-case-report-and-review-of-literature
#16
Jared Shows, Christan Bartsch, Heather Carmichael, Irfan Qureshi, Barish Edil, Hubert Fenton
Background: We present a case of adenocarcinoma arising in the oncocytic subtype of intraductal papillary mucinous neoplasm (O-IPMN), with emphasis on the molecular findings in the adenocarcinoma component. Tissue microdissection and next-generation sequencing were performed using a 26 gene panel (AKT1, ALK, APC, BRAF, CDH1, CTNNB1, EGFR, ERBB2, FBXW7, FGFR2, FOXL2, GNAQ, GNAS, KIT, KRAS, MAP2K1, MET, MSH6, NRAS, PDGFRA, PIK3CA, PTEN, SMAD4, SRC, STK11, TP53) of cancer-related genes. Case Presentation: A 69-year-old Caucasian female presented with chest pain and was found to have findings consistent with acute pancreatitis...
2017: J Pancreat Cancer
https://www.readbyqxmd.com/read/28566895/in-vivo-and-ex-vivo-confocal-endomicroscopy-of-pancreatic-cystic-lesions-a-prospective-study
#17
Somashekar G Krishna, Rohan M Modi, Amrit K Kamboj, Benjamin J Swanson, Phil A Hart, Mary E Dillhoff, Andrei Manilchuk, Carl R Schmidt, Darwin L Conwell
AIM: To investigate the reproducibility of the in vivo endoscopic ultrasound (EUS) - guided needle based confocal endomicroscopy (nCLE) image patterns in an ex vivo setting and compare these to surgical histopathology for characterizing pancreatic cystic lesions (PCLs). METHODS: In a prospective study evaluating EUS-nCLE for evaluation of PCLs, 10 subjects underwent an in vivo nCLE (AQ-Flex nCLE miniprobe; Cellvizio, MaunaKea, Paris, France) during EUS and ex vivo probe based CLE (pCLE) of the PCL (Gastroflex ultrahigh definition probe, Cellvizio) after surgical resection...
May 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28540626/cross-sectional-prevalence-of-pancreatic-cystic-lesions-in-patients-with-acromegaly-a-single-center-experience
#18
Yukiko Odake, Hidenori Fukuoka, Masaaki Yamamoto, Yoshifumi Arisaka, Junya Konishi, Kenichi Yoshida, Ryusaku Matsumoto, Hironori Bando, Kentaro Suda, Hitoshi Nishizawa, Genzo Iguchi, Shozo Yamada, Wataru Ogawa, Yutaka Takahashi
PURPOSE: Acromegaly is a disease associated with an increased risk for several kinds of neoplasms including colon and thyroid cancer. Although the association between acromegaly and pancreatic neoplasms has not been elucidated, it has recently been reported that GNAS gene mutations were found in 58% of intraductal papillary mucinous neoplasms (IPMNs), which are representative pancreatic cystic lesions, suggesting a link between IPMNs and acromegaly. To assess the prevalence of pancreatic cystic lesions in patients with acromegaly, we performed a retrospective cross-sectional single institute study...
May 24, 2017: Pituitary
https://www.readbyqxmd.com/read/28528374/pancreatic-cysts-and-guidelines
#19
REVIEW
James J Farrell
Pancreatic cysts, especially incidental asymptomatic ones seen on noninvasive imaging such as CT or MR imaging, remain a clinical challenge. The etiology of such cysts may range from benign cysts without any malignant potential such as pancreatic pseudocysts and serous cystadenomas to premalignant or frankly malignant cysts such as mucinous cystic neoplasms, intraductal papillary mucinous neoplasms, cystic degeneration associated with solid tumors such as pancreatic ductal adenocarcinoma or pancreatic endocrine neoplasms, and solid pseudopapillary neoplasms...
July 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28522787/surgical-treatment-of-pancreatic-cystic-tumors
#20
Beata Jabłońska, Łukasz Braszczok, Weronika Szczęsny-Karczewska, Beata Dubiel-Braszczok, Paweł Lampe
The aim of this study was to assess short-term outcomes of surgical treatment of pancreatic cystic tumors (PCTs). MATERIAL AND METHODS: We retrospectively reviewed medical records of 46 patients (31 women and 15 men) who had undergone surgery for pancreatic cystic tumors in our department. RESULTS: Pancreatic cystic tumors were located within the pancreatic head (21), body (11), tail (13), and whole pancreas (1). The following surgical procedures were performed: pancreatoduodenectomy (20), central pancreatectomy (9), distal pancreatectomy (3), distal pancreatectomy with splenectomy (3), distal extended pancreatectomy with splenectomy (2), total pancreatectomy (1), duodenum preserving pancreatic head resection (1), local tumor resection (4), and other procedures (2)...
February 28, 2017: Polski Przeglad Chirurgiczny
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