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Pancreatic neoplasms

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https://www.readbyqxmd.com/read/28444494/imaging-of-pancreatic-cystic-lesions-with-confocal-laser-endomicroscopy-an-ex-vivo-pilot-study
#1
Abdurrahman Kadayifci, Mustafa Atar, Michelle Yang, Carlos Fernandez-Del Castillo, Mari Mino-Kenudson, William R Brugge
BACKGROUND: The differential diagnosis of pancreatic cystic lesions (PCLs) is an increasingly common clinical challenge. Confocal laser endomicroscopy (CLE) may differentiate PCLs by imaging of the cyst wall. However, clinical experience is still limited, and better image definition and characterization of the cyst wall in a spectrum of cysts are needed. This experimental study aimed to expose detailed imaging characteristics of PCLs by CLE. METHODS: Patients who underwent surgery of a PCL were enrolled...
April 25, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28443205/a-pilot-study-of-radiologic-measures-of-abdominal-adiposity-weighty-contributors-to-early-pancreatic-carcinogenesis-worth-evaluating
#2
Jennifer B Permuth, Jung W Choi, Dung-Tsa Chen, Kun Jiang, Gina DeNicola, Jian-Nong Li, Domenico Coppola, Barbara A Centeno, Anthony Magliocco, Yoganand Balagurunathan, Nipun Merchant, Jose G Trevino, Daniel Jeong
OBJECTIVE: Intra-abdominal fat is a risk factor for pancreatic cancer (PC), but little is known about its contribution to PC precursors known as intraductal papillary mucinous neoplasms (IPMNs). Our goal was to evaluate quantitative radiologic measures of abdominal/visceral obesity as possible diagnostic markers of IPMN severity/pathology. METHODS: In a cohort of 34 surgically-resected, pathologically-confirmed IPMNs (17 benign; 17 malignant) with preoperative abdominal computed tomography (CT) images, we calculated body mass index (BMI) and four radiologic measures of obesity: total abdominal fat (TAF) area, visceral fat area (VFA), subcutaneous fat area (SFA), and visceral to subcutaneous fat ratio (V/S)...
February 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28440240/cystic-pancreatic-lymphangioma-diagnosed-with-endoscopic-ultrasound-guided-fine-needle-aspiration
#3
Ikram Hussain, Tiing Leong Ang
Pancreatic lymphangiomas are rare, but benign neoplasms. Historically, the diagnoses in various case reports were mostly made after surgical resection. There are emerging data concerning the utility of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) to differentiate it from more sinister pancreatic cystic neoplasms. A confident preoperative diagnosis with EUS-FNA is crucial to avoid unnecessary workup or surgery, especially for small and asymptomatic lesions. Here, we present a rare case of asymptomatic pancreatic lymphangioma which was diagnosed with EUS-FNA...
March 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28440237/new-criteria-to-differentiate-between-mucinous-cystic-neoplasm-and-serous-cystic-neoplasm-in-pancreas-by-endoscopic-ultrasound-a-preliminarily-confirmed-outcome-of-41-patients
#4
Wengang Zhang, Enqiang Linghu, Ningli Chai, Huikai Li
BACKGROUND AND OBJECTIVES: The ability to distinguish between mucinous cystic neoplasm (MCN) and serous cystic neoplasm (SCN) in the pancreas preoperatively by endoscopic ultrasound (EUS) remains a clinical challenge. To address this problem, we have developed new criteria using EUS findings and cyst fluid carcinoembryonic antigen (CEA) in the clinic. In this study, the validity and reliability of these criteria were assessed. MATERIALS AND METHODS: Between April of 2015 and May of 2016, a total of 59 patients with pancreatic cystic neoplasms underwent EUS and ultimately received surgery in our hospital...
March 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28438662/never-let-it-go-stopping-key-mechanisms-underlying-metastasis-to-fight-pancreatic-cancer
#5
REVIEW
E Giovannetti, C L van der Borden, A E Frampton, A Ali, O Firuzi, G J Peters
Pancreatic ductal adenocarcinoma (PDAC) is an extremely aggressive neoplasm, predicted to become the second leading cause of cancer-related deaths before 2030. This dismal trend is mainly due to lack of effective treatments against its metastatic behavior. Therefore, a better understanding of the key mechanisms underlying metastasis should provide new opportunities for therapeutic purposes. Genomic analyses revealed that aberrations that fuel PDAC tumorigenesis and progression, such as SMAD4 loss, are also implicated in metastasis...
April 21, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28435405/establishment-and-characterization-of-6-novel-patient-derived-primary-pancreatic-ductal-adenocarcinoma-cell-lines-from-korean-pancreatic-cancer-patients
#6
Mi-Ju Kim, Min-Sun Kim, Sung Joo Kim, Soyeon An, Jin Park, Hosub Park, Jae Hoon Lee, Ki-Byung Song, Dae Wook Hwang, Suhwan Chang, Kyu-Pyo Kim, Seong-Yun Jeong, Song Cheol Kim, Seung-Mo Hong
BACKGROUND: Pancreatic ductal adenocarcinomas are among the most malignant neoplasms and have very poor prognosis. Our understanding of various cancers has recently improved the survival of patients with cancer, except for pancreatic cancers. Establishment of primary cancer cell lines of pancreatic ductal adenocarcinomas will be useful for understanding the molecular mechanisms of this disease. METHODS: Eighty-one surgically resected pancreatic ductal adenocarcinomas were collected...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28423671/genome-wide-dna-methylation-analysis-reveals-molecular-subtypes-of-pancreatic-cancer
#7
Nitish Kumar Mishra, Chittibabu Guda
Pancreatic cancer (PC) is the fourth leading cause of cancer deaths in the United States with a five-year patient survival rate of only 6%. Early detection and treatment of this disease is hampered due to lack of reliable diagnostic and prognostic markers. Recent studies have shown that dynamic changes in the global DNA methylation and gene expression patterns play key roles in the PC development; hence, provide valuable insights for better understanding the initiation and progression of PC. In the current study, we used DNA methylation, gene expression, copy number, mutational and clinical data from pancreatic patients...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422824/pancreatic-carcinoids-serotonin-producing-pancreatic-neuroendocrine-neoplasms-report-of-5-cases-and-review-of-the-literature
#8
Nikolaos Tsoukalas, Eleftherios Chatzellis, Dimitra Rontogianni, Krystallenia I Alexandraki, Georgios Boutzios, Anna Angelousi, Gregory Kaltsas
INTRODUCTION: Pancreatic neuroendocrine neoplasms (pNENs) are relatively rare tumors representing 1% to 2% of all pancreatic neoplasms. These tumors can secrete a variety of biologically active substances giving rise to distinct clinical symptoms or can be clinically nonfunctioning. Apart from insulinomas and gastrinomas, which constitute the majority of functioning pNENs, some tumors may secrete serotonin presenting with the features of the carcinoid syndrome. These so-called pancreatic carcinoids are considered relatively rare tumors and are associated with increased urinary levels of 5-hydroxyindoleacetic acid (5-HIAA)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422722/the-clinical-value-regulatory-mechanisms-and-gene-network-of-the-cancer-testis-gene-stk31-in-pancreatic-cancer
#9
Kai Zhang, Zipeng Lu, Yi Zhu, Lei Tian, Jingjing Zhang, Chunhua Xi, Wentao Gao, Kuirong Jiang, Yi Miao
We aimed to identify STK31 as a cancer-testis (CT) gene and to explore its potential clinical value, regulatory mechanisms, and gene network in pancreatic cancer (PC). Gene expression data were generated from normal organ samples and pancreatic cancer samples from three public databases. STK31 expression patterns in normal and PC tissues were identified, and we explored its regulatory mechanisms. Gene ontology (GO) and pathway analyses of STK31-related genes were performed and an STK31 protein-protein interaction (PPI) network was constructed...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421458/surgical-management-of-pancreatic-cysts-a-shifting-paradigm-toward-selective-resection
#10
REVIEW
Jon M Gerry, George A Poultsides
Due to the widespread use of high-quality cross-sectional imaging, pancreatic cystic neoplasms are being diagnosed with increasing frequency. Clinicians are therefore asked to counsel a growing number of patients with pancreatic cysts diagnosed incidentally at an early, asymptomatic stage. Over the last two decades, accumulating knowledge on the biologic behavior of these neoplasms along with improved diagnostics through imaging and endoscopic cyst fluid analysis have allowed for a selective therapeutic approach toward these neoplasms...
April 18, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28416122/patients-with-a-resected-pancreatic-mucinous-cystic-neoplasm-have-a-better-prognosis-than-patients-with-an-intraductal-papillary-mucinous-neoplasm-a-large-single-institution-series
#11
James F Griffin, Andrew J Page, Georges J Samaha, Adrienne Christopher, Feriyl Bhaijee, Maryam K Pezhouh, Niek A Peters, Ralph H Hruban, Jin He, Martin A Makary, Anne Marie Lennon, John L Cameron, Christopher L Wolfgang, Matthew J Weiss
BACKGROUND/OBJECTIVES: Mucinous cystic neoplasms (MCNs) are rare pancreas tumors distinguished from intraductal papillary mucinous neoplasms (IPMNs) by the presence of ovarian-type stroma. Historical outcomes for MCNs vary due to previously ambiguous diagnostic criteria resulting in confusion with IPMNs. This study seeks to characterize and clarify the clinical features and long-term outcomes of MCNs versus IPMNs in the largest single-institution series of pathology-confirmed MCNs to date...
April 11, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28414996/a-case-of-multiple-synchronous-quadruple-cancers-of-the-stomach-sigmoid-colon-rectum-and-pancreas
#12
Atsushi Nanashima, Tetsuro Tominaga, Takashi Nonaka, Kouki Wakata, Masaki Kunizaki, Shuichi Tobinaga, Yorihisa Sumida, Shigekazu Hidaka, Naoe Kinoshita, Terumitsu Sawai, Takeshi Nagayasu
INTRODUCTION: Multiple primary neoplasms are relatively rare, but their incidence has increased because of aging and improvements in diagnostic imaging. PRESENTATION OF CASE: A 67-year-old man presented with epigastric pain. On upper gastrointestinal endoscopy, an ulcer was seen at the gastric angle, and biopsy showed moderately differentiated adenocarcinoma (AC). Colonoscopy demonstrated a 15-mm lesion in the sigmoid colon and a submucosal lesion in the lower rectum...
April 2, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28413390/a-serous-cystic-neoplasm-of-the-pancreas-coexisting-with-high-grade-pancreatic-intraepithelial-neoplasia-mimicking-an-intraepithelial-papillary-mucinous-neoplasm-a-case-report
#13
Aya Kawanishi, Kenichi Hirabayashi, Hirotaka Kono, Yumi Takanashi, Atsuko Hadano, Yohei Kawashima, Masami Ogawa, Yoshiaki Kawaguchi, Misuzu Yamada, Toshio Nakagohri, Naoya Nakamura, Tetsuya Mine
Serous cystic neoplasms of the pancreas are rare exocrine pancreatic neoplasms, most of which are benign and do not communicate with the pancreatic duct. Pancreatic intraepithelial neoplasm (PanIN) is considered a precursor of ductal adenocarcinoma that is microscopically recognized in pancreatic ducts. A 67-year-old Japanese woman presented with a 10-mm multilocular cystic lesion at the pancreatic body. Magnetic resonance pancreatography showed stenosis of the main pancreatic duct at the pancreatic body and dilatation of the distal side of the main pancreatic duct...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28412205/slc2a1-glut1-expression-in-mural-nodules-of-intraductal-papillary-mucinous-neoplasm-of-the-pancreas
#14
Yasunori Oda, Shinichi Aishima, Koji Shindo, Minoru Fujino, Yusuke Mizuuchi, Masami Hattori, Tetsuyuki Miyazaki, Masao Tanaka, Yoshinao Oda
In intraductal papillary mucinous neoplasms (IPMNs), the presence of a mural nodule showing a papillary or nodular proliferation of tumor cells in the dilated pancreatic duct is an indication for resection of the IPMN. Solute carrier family 2, facilitated glucose transporter member 1, known as Glucose transporter type 1 (SLC2A1/GLUT1) mediates cellular glucose uptake in many carcinomas and is correlated with increased 18F-fluorodeoxyglucose ((18)F-FDG) uptake. We examined SLC2A1/GLUT1 expression in the mural nodules of 180 IPMN specimens to distinguish malignant/benign tumors...
April 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28407704/delayed-epidural-mucin-collection-after-surgery-for-spinal-metastatic-pancreatic-adenocarcinoma
#15
Dong Ha Kim, Dong Hwan Kim, Hwan Soo Kim, Kyoung Hyup Nam, Byung Kwan Choi, In Ho Han
A rare case of delayed large epidural mucin collection causing neurologic deficit after surgery for metastatic pancreatic cancer is reported. A 65-year-old man presented with intractable upper-thoracic back pain radiating to the chest and gait disturbance. He had a history of subtotal pancreatectomy due to intraductal papillary mucinous neoplasm (IPMN) of the pancreas and concurrent chemotherapy. Eight months after pancreatectomy, multiple thoracic spinal metastasis was diagnosed with routine up positron emission tomography-computed tomography...
March 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28404017/dna-testing-of-pancreatic-cyst-fluid-is-it-ready-for-prime-time
#16
REVIEW
Aatur D Singhi, Marina N Nikiforova, Kevin McGrath
Pancreatic cysts are a clinical quandary in both diagnosis and management. Although many cysts, such as pseudocysts and serous cystadenomas, are benign and can be monitored clinically, mucinous cysts, such as intraductal papillary mucinous neoplasms and mucinous cystic neoplasms, have the potential to progress to pancreatic cancer. Considering the poor prognosis of pancreatic cancer, the detection of a pancreatic cyst can be a source of anxiety for both the patient and physician. This diagnosis in turn can lead to expensive, invasive, and even harmful surveillance and treatment options...
January 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28403101/prognostic-value-of-histological-subtype-in-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-a-retrospective-analysis-of-outcome-from-one-single-center
#17
Yefei Rong, Dansong Wang, Chen Xu, Yuan Ji, Dayong Jin, Wenchuan Wu, Xuefeng Xu, Tiantao Kuang, Wenhui Lou
We sought to retrospectively analyze the outcomes of patients with intraductal papillary mucinous neoplasm (IPMN) at our pancreatic surgery center, and to evaluate the prognostic value of histological subtype.The clinical data of 121 IPMNs treated in our center between 2005 and 2014 were retrospectively analyzed. Pathological slides were thoroughly reviewed by 2 specialized pathologists.Of the 121 patients, 48, 57, and 16 had main-duct, branch-duct, and mixed type IPMNs, respectively. Forty-one patients had invasive IPMNs...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28398963/molecular-evidence-for-monoclonal-skip-progression-in-main-duct-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#18
Kenjiro Date, Takao Ohtsuka, Takaaki Fujimoto, Koji Tamura, Hideyo Kimura, Taketo Matsunaga, Naoki Mochidome, Tetsuyuki Miyazaki, Yasuhisa Mori, Yoshinao Oda, Masafumi Nakamura, Masao Tanaka
OBJECTIVE: To clarify clonality of distinct multisegmental main duct (MD)-intraductal papillary mucinous neoplasms (IPMNs) using microarray analysis. BACKGROUND: IPMNs represent a pancreatic ductal cell field defect, which causes multiple occurrences of lesions. In addtion, it has been speculated that MD-IPMNs display features of monoclonal skip progression. METHODS: Total RNA was extracted from fresh-frozen tissue samples of metachronous MD-IPMNs and nonneoplastic pancreas tissue from the same pancreas from two individuals, and whole human genome microarray analysis was performed...
May 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28396783/young-lady-with-a-typical-solid-cystic-abdominal-mass
#19
Saket Kumar, Rahul Rahul, Abhijit Chandra
Solid pseudopapillary tumor is a rare pancreatic neoplasm that typically affects young women. Characteristic CT appearance is that of a mixed-density lesion with solid component peripherally and cystic component centrally. Even larger tumors are well encapsulated with sharp demarcation, amenable to complete resection.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28396777/pancreatic-pseudocyst-or-mucinous-cystadenocarcinoma-of-pancreas-a-diagnostic-dilemma
#20
Utsav Joshi, Prakash Poudel, Ram Kumar Ghimire, Babin Basnet
Pancreatic cystic neoplasm is difficult to distinguish from pseudocyst as clinical and radiological evidences may not be sufficient to make an accurate diagnosis. This may result in misdiagnosis with inappropriate management. Hence, every effort should be made for their distinction to avoid internal drainage procedures for neoplasms instead of extirpation.
April 2017: Clinical Case Reports
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