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Pancreas neoplasm

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https://www.readbyqxmd.com/read/29349725/ki67-proliferative-index-in-carcinoid-tumors-involving-ovary
#1
Xiaotun Zhang, Andrea Jones, Sarah M Jenkins, Yajue Huang
Primary ovarian carcinoid tumors are rare neoplasms that constitute less than 0.1% of all ovarian carcinomas. However, carcinoid tumors metastatic to ovaries are more common. Cell proliferative rate is an important factor in the determination of neuroendocrine tumor prognosis. Limited data are available as regards Ki67 proliferation index in predicting the physiological features of carcinoid tumors involving the ovary. Pathology files of Mayo Clinic Rochester (1995-2014) were searched, and clinical information was collected from medical records...
January 18, 2018: Endocrine Pathology
https://www.readbyqxmd.com/read/29349096/safety-and-efficacy-of-aav-retrograde-pancreatic-ductal-gene-delivery-in-normal-and-pancreatic-cancer-mice
#2
Kayla A Quirin, Jason J Kwon, Arafat Alioufi, Tricia Factora, Constance J Temm, Max Jacobsen, George E Sandusky, Kim Shontz, Louis G Chicoine, K Reed Clark, Joshua T Mendell, Murray Korc, Janaiah Kota
Recombinant adeno-associated virus (rAAV)-mediated gene delivery shows promise to transduce the pancreas, but safety/efficacy in a neoplastic context is not well established. To identify an ideal AAV serotype, route, and vector dose and assess safety, we have investigated the use of three AAV serotypes (6, 8, and 9) expressing GFP in a self-complementary (sc) AAV vector under an EF1α promoter (scAAV.GFP) following systemic or retrograde pancreatic intraductal delivery. Systemic delivery of scAAV9.GFP transduced the pancreas with high efficiency, but gene expression did not exceed >45% with the highest dose, 5 × 1012 viral genomes (vg)...
March 16, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29344522/intraductal-papillary-mucinous-neoplasms-of-the-pancreas-strategic-considerations
#3
Vicente Morales-Oyarvide, Zhi Ven Fong, Carlos Fernández-Del Castillo, Andrew L Warshaw
Intraductal papillary mucinous neoplasms (IPMN) are cystic neoplasms with the potential for progression to pancreatic cancer. Recognized by the global medical community just over two decades ago, IPMN have gained great epidemiological and clinical relevance thanks to the widespread use of cross-sectional abdominal imaging, which has led to a surge in the number of incidental pancreatic cysts being diagnosed. As our understanding of this disease has improved, we now know that some IPMN have a very elevated risk of cancer and require surgical resection, while others are low-risk lesions and can be followed...
December 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29344231/expression-of-beclin-1-and-bcl-2-in-pancreatic-neoplasms-and-its-effect-on-pancreatic-ductal-adenocarcinoma-prognosis
#4
Shanshan Song, Baosheng Wang, Shuailin Gu, Xiaocheng Li, Shaolong Sun
Aberrant expression of Beclin 1 and B-cell lymphoma-2 (Bcl-2) has been identified in a variety of human tumors; however, little information is available for pancreatic neoplasms. The present study analyzed the expression of Beclin 1 and Bcl-2 in pancreatic ductal adenocarcinoma (PDAC) and solid pseudopapillary neoplasm (SPN) of the pancreas, and evaluated their prognostic significance for PDAC. The present study included 117 PDAC, 43 SPN and 32 chronic pancreatitis (CP) cases. Levels of Beclin 1 and Bcl-2 expression were evaluated semiquantitatively by immunohistochemistry, and their correlation with the survival of patients with PDAC was determined...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29338919/agreement-among-magnetic-resonance-imaging-magnetic-resonance-cholangiopancreatography-mri-mrcp-and-endoscopic-ultrasound-eus-in-the-evaluation-of-morphological-features-of-branch-duct-intraductal-papillary-mucinous-neoplasm-bd-ipmn
#5
Laura Uribarri-Gonzalez, Margaret G Keane, Stephen P Pereira, Julio Iglesias-García, J Enrique Dominguez-Muñoz, Jose Lariño-Noia
BACKGROUND/OBJECTIVES: To evaluate the agreement between the imaging modalities MRI-MRCP and EUS in cystic lesions of the pancreas which were thought to be a BD-IPMN. METHODS: Multicenter retrospective study included all patients between 2010 and 2015 with a suspected BD-IPMN who underwent an EUS and MRI-MRCP within 6 months or less of each other. Location, number, size, worrisome features and high-risk stigmata were evaluated. Interobserver agreement was evaluated by Kappa score...
January 4, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29333072/prevalence-of-incidental-pancreatic-cyst-on-upper-endoscopic-ultrasound
#6
Belén Martínez, Juan F Martínez, José R Aparicio
Background: This study aimed to determine the prevalence of incidental pancreatic cysts in patients undergoing upper endoscopic ultrasound without a known pancreatic abnormality. Methods: This prospective study was conducted in two hospitals in Spain and enrolled consecutive patients referred for upper endoscopic ultrasound for a condition unrelated to the pancreas. Patients with a previous pancreatic anomaly, history of acute or chronic pancreatitis, evidence of acute pancreatitis, previous upper gastrointestinal surgery, or chronic abdominal pain suggestive of pancreatic origin were excluded...
January 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29325350/-the-current-status-of-diagnosis-and-treatment-of-pancreatic-cystic-neoplasm-in-china-a-report-of-2-251-cases
#7
(no author information available yet)
Objective: To analyze the current status of diagnosis and treatment of pancreatic cystic neoplasm(PCN)in China. Methods: Clinical data of 2 251 PCN patients who underwent surgical resection from January 2006 to December 2016 in 16 institutions was retrospectively analyzed.Excel database was created which covered 132 fields of 7 fields: general information of patients, imaging findings, preoperative blood biochemical indexes, tumor markers, surgical related data, postoperative complications and pathology. Results: Of the 2 251 patients, the male to female ratio was 1...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29317372/pancreas-ductal-adenocarcinoma-with-cystic-features-on-cross-sectional-imaging-radiologic-pathologic-correlation
#8
Seo Yeon Youn, Sung Eun Rha, Eun Sun Jung, In Seok Lee
Most pancreatic ductal adenocarcinomas (PDAs) show solid growth pattern, but ductal adenocarcinomas may demonstrate intratumoral cystic appearance or accompany peritumoral non-neoplastic cystic lesions, thus mimicking cystic pancreatic tumors on imaging studies. The histopathologic findings for PDA with cystic feature are divided into neoplastic and non-neoplastic cysts. Neoplastic cystic changes include large-duct type cysts (microcystic appearance), neoplastic mucin cysts (macrocystic appearance), colloid carcinomas (mucinous noncystic adenocarcinomas), and degenerative cystic change usually caused by hemorrhagic necrosis of tumor...
January 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29310347/radical-antegrade-modular-pancreatosplenectomy-for-adenocarcinomaof-the-body-of-the-pancreas-in-a-patient-with-portal-annular-pancreas-aberrant-hepatic-artery-and-absence-of-the-celiac-trunk-a-case-report
#9
Hao Yuan, Pengfei Wu, Jianmin Chen, Zipeng Lu, Lei Chen, Jishu Wei, Feng Guo, Baobao Cai, Jie Yin, Dong Xu, Kuirong Jiang, Yi Miao
RATIONALE: Portal annular pancreas is a rare anatomic variation, where the uncinated process of the pancreas connects with the dorsal pancreas and the pancreas tissue encases the portal vein (PV), superior mesenteric vein (SMV) or splenic vein (SV). Malignancies are quite uncommon in the patients, who have an annular pancreas especially portal annular pancreas. Ectopic common hepatic artery and absence of the celiac trunk (CT) are the other infrequent abnormalities. PATIENT CONCERNS: A 74-year-old man suffered from upper abdominal and back pain...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29301491/pancreatic-panniculitis-the-bright-side-of-the-moon-in-solid-cancer-patients
#10
Elena Guanziroli, Antonella Colombo, Antonella Coggi, Raffaele Gianotti, Angelo Valerio Marzano
BACKGROUND: Pancreatic panniculitis is a rare complication of pancreas disorders occurring in 0.3-3% of patients, most often accompanied by the pancreatic acinar carcinoma. It presents multiple, painful, deep, ill-defined, red-brown, migratory nodules and plaques of hard elastic consistency; often ulcerated and typically located on the lower proximal and distal extremities. The pathogenesis is not fully understood, but it is thought to result from lipolysis and fat necrosis with secondary tissue inflammation induced by pancreatic enzymes...
January 4, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29299757/benign-tumors-of-the-pancreas-radical-surgery-versus-parenchyma-sparing-local-resection-the-challenge-facing-surgeons
#11
EDITORIAL
Hans G Beger
Pancreaticoduodenectomy and left-sided pancreatectomy are the surgical treatment standards for tumors of the pancreas. Surgeons, who are requested to treat patients with benign tumors, using standard oncological resections, face the challenge of sacrificing pancreatic and extra-pancreatic tissue. Tumor enucleation, pancreatic middle segment resection and local, duodenum-preserving pancreatic head resections are surgical procedures increasingly used as alternative treatment modalities compared to classical pancreatic resections...
January 3, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29290920/extrapancreatic-solid-pseudopapillary-neoplasm-followed-by-multiple-metastases-case-report
#12
Hao Wu, Yan-Fen Huang, Xiang-Hong Liu, Mei-Hua Xu
Solid pseudopapillary neoplasm (SPN), also known as Gruber-Frantz tumor, is a rare form of neoplasm that almost exclusively occurs in the pancreas and in young females. While the potential of malignancy is low for SPN, these tumors can mimic other diseases and require a meticulous investigation and a standard treatment by total surgical resection. We present an unusual case of SPN arising in the mesentery of a 40-year-old man with subsequent multiple metastases. Histopathological examination showed similar properties of the mesenteric neoplasm to those of SPN in pancreas...
December 15, 2017: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29289465/investigating-the-role-of-transcription-factors-of-pancreas-development-in-pancreatic-cancer
#13
REVIEW
Ahmad Abu Turab Naqvi, Gulam Mustafa Hasan, Md Imtaiyaz Hassan
Pancreatic cancer (PC) is the seventh most common cause of cancer-related deaths worldwide that kills more than 300,000 people every year. Prognosis of PC is very poor with a five-year survival rate about 5%. The most common and highly observed type of PC is pancreatic ductal adenocarcinoma (PDAC). It is preceded by the progression of precursor lesions such as Pancreatic Intraepithelial Neoplasia (PanIN), Intraductal Papillary Neoplasm (IPMN) and Mucinous Cystic Neoplasm (MCN). PanIN is the most common among these premalignant lesions...
December 24, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29287021/does-computed-tomography-have-the-ability-to-differentiate-aggressive-from-nonaggressive-solid-pseudopapillary-neoplasm
#14
Ashita Rastogi, Mathew Assing, Mellisa Taggart, Brinda Rao, Jia Sun, Khaled Elsayes, Eric Tamm, Priya Bhosale
OBJECTIVE: The aim of the study was to assess the ability of contrast-enhanced computed tomography (CECT) to differentiate aggressive from nonaggressive solid pseudopapillary neoplasms (SPNs). MATERIALS AND METHODS: Forty treatment-naive patients with pathologically proven pancreatic SPNs were included. Imaging characteristics were determined by consensus of 3 radiologists blinded to histopathologic aggressiveness. All patients underwent 4-phase CECT using a pancreatic protocol...
December 28, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29282388/a-rare-case-of-intraductal-tubulopapillary-neoplasm-of-the-pancreas-rupturing-and-causing-acute-peritonitis
#15
Akira Umemura, Kazuyuki Ishida, Hiroyuki Nitta, Takeshi Takahara, Yasushi Hasegawa, Kenji Makabe, Akira Sasaki
An intraductal tubulopapillary neoplasm (ITPN) is a very rare pancreatic tumor. Here we report an extremely rare case of an ITPN rupturing and causing acute peritonitis. A 50-year-old woman presented with left flank pain and vomiting. A computed tomography (CT) scan revealed gigantic multilocular cysts in the pancreatic tail and massive fluid collection in the abdominal cavity. The serum, urine, and abdominal fluid amylase levels were highly elevated, so she was conservatively treated with intraperitoneal drainage and antibiotics for a diagnosis of ruptured pancreatic cysts...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29281757/short-term-outcomes-and-risk-factors-for-pancreatic-fistula-after-pancreatic-enucleation-a-single-center-experience-of-142-patients
#16
Xing Wang, Chun-Lu Tan, Hao Zhang, Yong-Hua Chen, Min Yang, Neng-Wen Ke, Xu-Bao Liu
BACKGROUND: Enucleation is increasingly used for benign or low-grade pancreatic neoplasms. Enucleation preserves the pancreatic parenchyma as well as decreases the risk of long-term endocrine and exocrine dysfunction, but may be associated with a higher rate of postoperative pancreatic fistula (POPF). The aim of this study was to assess short-term outcomes, in particular, POPF. METHODS: Data were collected retrospectively from all 142 patients who underwent pancreatic enucleation between 2009 and 2014 in our institution were analyzed...
December 27, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29279599/solid-pseudopapillary-neoplasm-of-the-pancreas-with-liver-metastasis-initially-misinterpreted-as-benign-haemorrhagic-cyst
#17
M J Jung, H K Kim, S Y Choi, S G Kim, S Y Jin
Solid pseudopapillary neoplasm (SPN) of the pancreas is considered a low-malignant neoplasm with a good prognosis. However, 5% to 15% of patients with SPNs develop metastatic disease, most commonly in the liver. Metastatic hepatic malignancies that show pseudocystic features are rare. Here we describe the case of a middle-aged female with a cystic liver metastasis from SPN. To the best of our knowledge, SPN with a single cystic liver metastasis has not been described, although these tumours frequently undergo haemorrhagic-cystic degeneration...
December 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/29277093/hemosuccus-pancreaticus-in-the-simple-mucinous-cyst-of-the-pancreas
#18
I L Eok Jo, Dae Hwan Kang, Cheol Woong Choi, Hyung Wook Kim, Su Jin Kim, Hyeong Seok Nam, Dae Gon Ryu
Hemosuccus pancreaticus is an unusual gastrointestinal hemorrhage through the main pancreatic duct. We report a rare case of hemosuccus pancreaticus due to a simple mucinous cyst of the pancreas. A 52-year-old man who had been followed-up for a suspected branch duct intraductal papillary mucinous neoplasm (IPMN) visited the emergency room due to hematochezia. Endoscopy showed active bleeding from the ampulla. Computed tomography revealed hemorrhage in a 2.0-cm cystic mass in the pancreatic body. The patient was diagnosed with hemosuccus pancreaticus caused by bleeding into the main pancreatic duct from suspected IPMN...
December 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29273875/robotic-total-pancreatectomy-with-splenectomy-technique-and-outcomes
#19
Ioannis T Konstantinidis, Zeljka Jutric, Oliver S Eng, Susanne G Warner, Laleh G Melstrom, Yuman Fong, Byrne Lee, Gagandeep Singh
BACKGROUND: Robotic total pancreatectomy (TP) represents a minimally invasive approach to a major intra-abdominal operation. Its utility, technique, and outcomes are evolving. METHODS: In this video, we describe a systematic approach to a robotic total pancreatectomy performed for multifocal intraductal papillary mucinous neoplasm (IPMN). Additionally, we reviewed the National Cancer Database (NCDB) to examine the outcomes of robotic TP compared to laparoscopic and open TP between 2010 and 2014...
December 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29260133/clinicopathological-features-of-gastroenteropancreatic-neuroendocrine-tumors-a-retrospective-evaluation-of-42-cases
#20
Kenan Büyükaşık, Aziz Arı, Cihad Tatar, Bülent Akçe, Mert Mahsuni Sevinç, Serkan Sarı, Esra Paşaoğlu, Hasan Bektaş
Objective: Neuroendocrine tumors arise from neuroendocrine cells in any part of the body; approximately two thirds of these tumors are located in the gastrointestinal tract and pancreas. Although gastroenteropancreatic neuroendocrine tumors are known as rare neoplasms, their prevalence has recently increased due to advanced diagnostic methods and increased awareness of the disorder. In the present study, we aimed to review patients who were treated and followed up for gastroenteropancreatic neuroendocrine tumors at our clinic in terms of clinical picture, pathological findings, and prognosis...
2017: Turkish journal of surgery
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