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intraductal papillary mucinous tumor

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https://www.readbyqxmd.com/read/29660844/moray-micro-forceps-biopsy-improves-the-diagnosis-of-specific-pancreatic-cysts
#1
M Lisa Zhang, Ronald N Arpin, William R Brugge, David G Forcione, Omer Basar, Martha B Pitman
BACKGROUND: Making a specific diagnosis of pancreatic cysts preoperatively is difficult. The new disposable Moray micro forceps biopsy (MFB) device allows tissue sampling from the pancreatic cyst wall/septum and aims to improve diagnosis. This study compares the diagnostic performance of the MFB with the current conventional analysis of pancreatic cyst fluid (PCF). METHODS: A total of 48 patients sampled with MFB were identified. Cysts were classified as mucinous on PCF based on extracellular mucin/mucinous epithelium, carcinoembryonic antigen (CEA) levels ≥192 ng/mL, or KRAS/GNAS mutation...
April 16, 2018: Cancer Cytopathology
https://www.readbyqxmd.com/read/29658052/reduced-%C3%AE-glcnac-glycosylation-on-gastric-gland-mucin-is-a-biomarker-of-malignant-potential-for-gastric-cancer-barrett-s-adenocarcinoma-and-pancreatic-cancer
#2
REVIEW
Kazuhiro Yamanoi, Jun Nakayama
Gastric gland mucin secreted from pyloric gland cells, mucous neck cells, and cardiac gland cells of the gastric mucosa harbors unique O-glycans carrying terminal α1,4-linked N-acetylglucosamine residues (αGlcNAc), which are primarily attached to the scaffold mucin core protein MUC6. αGlcNAc acts as an antibiotic against Helicobacter pylori (H. pylori), a microbe causing gastric cancer. In addition, mice deficient in A4gnt, which encodes the enzyme α1,4-N-acetylglucosaminyltransferase (α4GnT) that catalyzes αGlcNAc biosynthesis, spontaneously develop gastric differentiated-type adenocarcinoma, even if not infected by H...
April 16, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29650941/-a-case-of-an-intraductal-papillary-mucinous-neoplasm-which-rapidly-worsened-and-penetrated-into-the-stomach-and-the-transverse-colon
#3
Akira Sogawa, Kei Nakamura, Tomoyuki Nagata, Satoshi Mochizuki, Yuen Nakase, Shozo Kitai, Seishirou Inaba, Keiji Shimada
We report a case of a 71-year-old woman.She visited our hospital with a complaint of high fever and abdominal distention. She has been pointed out intraductal papillary mucinous neoplasm(IPMN)4 years ago.Abdominal CT showed cystic legion, 80mm in diameter, on the pancreas.The lesion was unclear at the boundary between the main pancreatic duct and in contact with the stomach, transverse colon.Upper endoscopic and colonoscopic examination revealed the exhaustion image from the intestional tract but not pointed out the malignant findings...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650930/-a-case-of-early-gastric-cancer-with-multiple-lymph-node-metastases-revealed-by-additional-surgical-resection-after-esd
#4
Yoshitaka Nakamura, Masayuki Yubakami, Yutaka Kondo, Yukihisa Nishimura, Momoko Todo, Kiyoto Atsuji, Akihiro Yamaguchi, Naoki Kakihara, Osamu Ikawa, Hiroki Taniguchi
A 74-year-old man was referred to our hospital for further investigation of a cystic lesion in the pancreatic body, which had been detected by ultrasonography at a local hospital. He was diagnosed as intraductal papillary mucinous neoplasm(IPMN) and further preoperative examinations were conducted. Upper gastrointestinal endoscopy demonstrated a type 0-II c tumor of the greater curvature in the upper third of the stomach. Endoscopic ultrasonography showed no sign of submucosal invasion. Endoscopic submucosal dissection(ESD)was carried out and pathological examination of a specimen revealed well differentiated adenocarcinoma with submucosal invasion, which fulfilled the indication for additional gastrectomy with lymph node dissection...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650332/clinicopathological-and-prognostic-significance-of-muc13-and-agr2-expression-in-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#5
Kumiko Mito, Michihiro Saito, Kohei Morita, Iruru Maetani, Naohiro Sata, Makiko Mieno, Noriyoshi Fukushima
BACKGROUND: Intraductal papillary mucinous neoplasm (IPMN) of the pancreas is a primary pancreatic ductal epithelial neoplasm with the potential to develop into an invasive adenocarcinoma. This study aimed to investigate the clinicopathologic and prognostic significance of four potential biomarkers for the preoperative evaluation of patients with IPMN. MATERIALS AND METHODS: Clinicopathologic materials from 104 patients with IPMN who underwent surgical resection at Jichi Medical University Hospital were analyzed...
April 3, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29599359/clinicopathological-aspects-and-diagnostic-problems-in-patients-with-intraductal-papillary-neoplasm-of-the-bile-duct
#6
Atsushi Nanashima, Naoya Imamura, Yorihisa Sumida, Masahide Hiyoshi, Takeomi Hamada, Takeshi Nagayasu
BACKGROUND/AIM: Intraductal papillary neoplasm of the bile duct (IPNB) is defined as a non-invasive malignancy and disparity of its histological diagnosis with related diseases remains. PATIENTS AND METHODS: Twenty-six cases of IPNB and 12 of papillary adenocarcinomas (PAC) at two Institutes were investigated. RESULTS: The prevalence of biliary dilatation and mucin secretion in the group with IPNB was significantly higher compared to the group with PAC (p<0...
April 2018: Anticancer Research
https://www.readbyqxmd.com/read/29557419/intraductal-tubulopapillary-epithelial-proliferation-associated-with-type-1-autoimmune-pancreatitis
#7
Shinya Fujie, Hiroyuki Matsubayashi, Hirotoshi Ishiwatari, Hiromasa Hazama, Takaaki Ito, Keiko Sasaki, Hiroyuki Ono
A 70-year-old man was referred to our hospital with exacerbation of diabetes. His blood tests showed elevated levels of serum IgG4 and HbA1c. Computed tomography of the pancreatic body demonstrated a weakly enhanced mass, 2 cm in size, with indistinct borders. Magnetic resonance cholangiopancreatography revealed a narrowing of the main pancreatic duct (MPD) at the pancreatic body, a markedly dilated upstream duct, and a slightly dilated downstream duct. Endoscopic ultrasonography demonstrated an iso-hypoechoic heterogeneous mass, protruding and spreading in the pancreatic duct...
March 2018: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/29557198/double-cystic-brain-metastasis-in-a-patient-with-stable-pancreatic-intraductal-papillary-mucinous-neoplasm
#8
Valentina Tardivo, Francesca Vincitorio, Matteo Monticelli, Luca Bertero, Francesco Zenga, Alessandro Ducati, Paola Cassoni, Diego Garbossa
BACKGROUND: Brain metastases in pancreatic cancer are a rare condition and are usually seen in case of pancreatic adenocarcinoma. Only few cases of brain metastasis in patients affected by Intraductal papillary mucinous neoplasm (IPMN) are actually reported. CASE DESCRIPTION: We report a patient diagnosed with double cystic brain lesions that the histological examination reveal to be consistent, with pancreatic metastasis. Our patient had an history shown of stable pancreatic IPMN which has never made the oncologist suspicious about neoplastic progression or degeneration into pancreatic carcinoma...
March 20, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29546568/spontaneous-regression-of-colorectal-liver-metastasis
#9
Ryota Matsuki, Masanori Sugiyama, Shinya Yoshiike, Junji Shibahara, Masaharu Kogure, Masaaki Yokoyama, Yutaka Suzuki, Nobutsugu Abe, Tadahiko Masaki, Toshiyuki Mori
A 72-year-old woman with advanced ascending colon cancer and an intraductal papillary mucinous neoplasm (IPMN) of the pancreatic head was treated by right hemicolectomy (RHC) and pylorus-preserving pancreaticoduodenectomy (PpPD). Adjuvant chemotherapy was not administered. Multimodal examinations at 5 months after surgery detected a solitary metastatic liver tumor derived from cancer of the ascending colon. Liver resection proceeded at 7 months after the first surgery. A pathological study of a surgical specimen of the liver identified a necrotic nodule that did not contain viable tumor cells...
March 15, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29526803/pancreatic-dclk1-cells-originate-distinctly-from-pdx1-progenitors-and-contribute-to-the-initiation-of-intraductal-papillary-mucinous-neoplasm-in-mice
#10
Wanglong Qiu, Helen E Remotti, Sophia M Tang, Elizabeth Wang, Lily Dobberteen, Ayman Lee Youssof, Joo Hee Lee, Edwin C Cheung, Gloria H Su
PanINs and IPMNs are the two most common precursor lesions that can progress to invasive pancreatic ductal adenocarcinoma (PDA). DCLK1 has been identified as a biomarker of progenitor cells in PDA progressed from PanINs. To explore the potential role of DCLK1-expressing cells in the genesis of IPMNs, we compared the incidence of DCLK1-positive cells in pancreatic tissue samples from genetically-engineered mouse models (GEMMs) for IPMNs, PanINs, and acinar to ductal metaplasia by immunohistochemistry and immunofluorescence...
March 8, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29494224/intraductal-tubulopapillary-neoplasm-of-the-pancreas-an-overview
#11
Hyunsung Kim, Jae Y Ro
Intraductal tubulopapillary neoplasm is a rare tumor that the World Health Organization recognized in 2010 as a subtype of premalignant pancreatic neoplasms. It is important to distinguish it from other intraductal neoplasms, including intraductal papillary mucinous neoplasm, pancreatic ductal adenocarcinoma, and intraductal variant of acinar cell carcinoma, because intraductal tubulopapillary neoplasm has a favorable prognosis. Histopathologically, intraductal tubulopapillary neoplasms are characterized by tubulopapillary growth, uniform high-grade cytologic atypia, frequent necrotic foci, evident ductal differentiation, and absence of mucin...
March 2018: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29456656/comparison-of-the-diagnostic-efficacy-between-ultrasound-elastography-and-magnetic-resonance-imaging-for-breast-masses
#12
Rong Cheng, Jing Li, Li Ji, Huining Liu, Limin Zhu
The present study compared the efficacy of ultrasound elastography (UE), magnetic resonance imaging (MRI) and the combination of the two methods (UE+MRI) in the differential diagnosis of benign and malignant breast tumors. In total, 86 patients with breast masses were recruited and evaluated by UE, MRI and UE+MRI. Strain ratios of UE were calculated for the breast mass and adjacent normal tissues. In addition, the receiver operating characteristic (ROC) curve was obtained, while the sensitivity and specificity were calculated to determine the optimal cut-off point for the differential diagnosis...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29451897/selective-identification-of-somatic-mutations-in-pancreatic-cancer-cells-through-a-combination-of-next-generation-sequencing-of-plasma-dna-using-molecular-barcodes-and-a-bioinformatic-variant-filter
#13
Yoji Kukita, Kazuyoshi Ohkawa, Ryoji Takada, Hiroyuki Uehara, Kazuhiro Katayama, Kikuya Kato
The accuracy of next-generation sequencing (NGS) for detecting tumor-specific mutations in plasma DNA is hindered by errors introduced during PCR/sequencing, base substitutions caused by DNA damage, and pre-existing mutations in normal cells that are present at a low frequency. Here, we performed NGS of genes related to pancreatic cancer (comprising 2.8 kb of genomic DNA) in plasma DNA (average 4.5 ng) using molecular barcodes. The average number of sequenced molecules was 900, and the sequencing depth per molecule was 100 or more...
2018: PloS One
https://www.readbyqxmd.com/read/29443760/resection-of-benign-side-branch-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-is-long-term-follow-up-indicated-a-case-report-and-review-of-the-literature
#14
Stefan Fritz, Regina Küper-Steffen, Katharina Feilhauer, Christoph M Sommer, Götz M Richter, René Hennig, Jörg Köninger
RATIONALE: Intraductal papillary mucinous neoplasms of the pancreas (IPMNs) are benign cystic tumors with a relevant risk of malignant transformation over time. Currently, follow-up after surgical resection of benign IPMNs remains controversial. PATIENT CONCERNS: This is a case report of a 68-year-old male who underwent pancreatic head resection for a multicystic side-branch IPMN with low-grade epithelial dysplasia in March 2009 at the Katharinenhospital Stuttgart, Germany...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29442219/a-case-of-mixed-adenoneuroendocrine-carcinoma-of-the-pancreas-mimicking-intraductal-papillary-mucinous-carcinoma
#15
Hideki Mori, Keiji Hanada, Tomoyuki Minami, Shigeki Yano, Motomitsu Fukuhara, Hirotsugu Maruyama, Akinori Shimizu, Naomichi Hirano, Fumiaki Hino, Hironobu Amano, Shuji Yonehara
A previously healthy 52-year-old man was referred to our hospital for further evaluation of main pancreatic duct dilatation. The preoperative work-up was consistent with intraductal papillary mucinous carcinoma (IPMC) derived from a mixed type intraductal papillary mucinous neoplasm (IPMN), because multilocular cysts with enhancing thickened pancreatic head walls and dilated pancreatic ducts lined with dysplastic mucinous epithelium, with papillary proliferation from the pancreatic body to the tail, were observed; in addition, the pancreatic juice cytology was class V, which is suggestive of adenocarcinoma...
February 13, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29426780/conditional-survival-analysis-for-patients-with-intraductal-papillary-mucinous-neoplasms-ipmns-undergoing-curative-resection
#16
Apostolos Gaitanidis, Michail Alevizakos, Alexandra Tsaroucha, Christos Tsalikidis, Constantinos Simopoulos, Michail Pitiakoudis
BACKGROUND: Conditional survival (CS) analysis represents a novel method that may provide more clinically relevant perspectives to cancer management compared to conventional survival analysis. The purpose of this study was to evaluate conditional survival for patients with intraductal papillary mucinous neoplasms (IPMNs) undergoing curative resection. METHODS: A retrospective search of the Surveillance Epidemiology and End Results (SEER) database was performed. Three-year conditional survival (i...
January 12, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29424809/intraductal-papillary-mucinous-neoplasms-of-the-pancreas-current-understanding-and-future-directions-for-stratification-of-malignancy-risk
#17
Annabelle L Fonseca, Kimberly Kirkwood, Michael P Kim, Anirban Maitra, Eugene J Koay
The incidence of intraductal papillary mucinous neoplasms (IPMNs) has been increasing over the past decade, mainly owing to increased awareness and the increased use of cross-sectional imaging. The Sendai and Fukuoka consensus guidelines provide us with clinical management guidelines and algorithms; however, the clinical management of IPMNs continues to be challenging. Our incomplete understanding of the natural history of the disease, and the events and pathways that permit progression to adenocarcinoma, result in difficulties predicting which tumors are high risk and will progress to invasive disease...
March 2018: Pancreas
https://www.readbyqxmd.com/read/29421807/the-clinical-management-of-main-duct-intraductal-papillary-mucinous-neoplasm-of-the-pancreas
#18
Chiara Dal Borgo, Giampaolo Perri, Alex Borin, Giovanni Marchegiani, Roberto Salvia, Claudio Bassi
BACKGROUND: Intraductal papillary mucinous neoplasms (IPMNs) of the pancreas comprise a heterogeneous group of intraductal mucin-producing neoplasms representing a typical adenoma-to-carcinoma sequence. The involvement of the main pancreatic duct (MPD) is a feature of paramount importance, directly related to a more aggressive biology and a higher malignancy rate. METHOD: We review and discuss the clinical management of IPMNs with a MPD involvement, recalling the different consensus guidelines and addressing recent controversies in literature, presenting the current clinical practice in Verona Pancreas Institute...
February 8, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29417328/identification-of-small-proteins-and-peptides-in-the-differentiation-of-patients-with-intraductal-mucinous-neoplasms-of-the-pancreas-chronic-pancreatitis-and-pancreatic-adenocarcinoma
#19
Chiara Fania, Raffaele Pezzilli, Gianvico Melzi d'Eril, Cecilia Gelfi, Alessandra Barassi
BACKGROUND: There are a limited number of studies investigating the type of serum proteins capable of differentiating intraductal papillary mucinous neoplasms from benign or malignant diseases of the pancreas. AIMS: To select proteins able to differentiate intraductal papillary mucinous neoplasms from benign and malignant pancreatic disease using semiquantitative proteomics. METHODS: Serum samples were obtained from 74 patients (19 with type II intraductal papillary mucinous neoplasms, 8 with type I/III intraductal papillary mucinous neoplasms, 24 with chronic pancreatitis, 23 with pancreatic ductal adenocarcinomas) and 21 healthy subjects...
February 8, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29410139/significance-of-microcystic-elongated-and-fragmented-glandular-like-features-in-intraductal-papillary-mucinous-neoplasm-of-the-pancreas
#20
Ji Y Park, Jae Hoon Lee, Ki-Byung Song, Dae Wook Hwang, Kyu-Rae Kim, Song Cheol Kim, Seung-Mo Hong
Microcystic, elongated, and fragmented (MELF) glandular features are associated with epithelial-mesenchymal transition, invasion, and progression in endometrioid adenocarcinoma of the uterus. Similar histological features are also observed at the periphery of pancreatic intraductal papillary mucinous neoplasms (IPMNs). However, the clinicopathological significance of MELF-like features-particularly whether they represent regenerative or truly neoplastic conditions-in IPMNs remains unclear. We assessed a total of 152 surgically resected IPMNs...
February 1, 2018: Human Pathology
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