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intraductal papillary mucinous tumor

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https://www.readbyqxmd.com/read/28942226/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-associated-with-neuroendocrine-tumor-a-case-report
#1
M Boge, B Gurses, M Vural, S Yilmaz, S Goksel, O Bilge
INTRODUCTION: Intraductal papillary mucinous neoplasm is an uncommon cystic tumor of pancreas that can be associated with ductal adenocarcinoma. Coexistence of pancreatic IPMN and neuroendocrine tumor is very rare. Here, we report the imaging features of mixed type intraductal papillary mucinous neoplasia of the pancreas with high grade dysplasia together with neuroendocrine carcinoma and perform review of the literature. PRESENTATION: A 68-year old patient has been evaluated for possible IPMN that was suspected during ultrasound...
September 14, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28938594/microrna-expression-levels-as-diagnostic-biomarkers-for-intraductal-papillary-mucinous-neoplasm
#2
Lei Wang, Jianming Zheng, Chang Sun, Li Wang, Gang Jin, Lei Xin, Zhendong Jin, Dong Wang, Zhaoshen Li
Intraductal papillary mucinous neoplasms (IPMNs) are deadly exocrine mucinous tumors. Currently the molecular features and diagnostic markers of IPMNs are not well understood. In this study, we performed microRNA (miRNA) profiling assays to study the potential roles of miRNAs in IPMNs using 78 cases of IPMN patients and controls. When comparing the miRNA expression between IPMN patient samples and controls, we found that miR-210, miR-223, miR-221, miR-155 and miR-187 were differentially expressed in normal pancreas and IPMNs...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28918799/new-imaging-techniques-for-endoscopic-ultrasonography-contrast-enhanced-endoscopic-ultrasonography
#3
REVIEW
Masayuki Kitano, Yasunobu Yamashita
Conventional endoscopic ultrasonography (EUS) has limitations in the diagnosis of solid masses. Because most are depicted as a hypoechoic mass, without cytology or biopsy, it can be difficult to distinguish inflammatory masses from malignancy. Recently developed, contrast-enhanced harmonic EUS (CH-EUS) has improved characterization of digestive lesions by depicting microvessels and parenchymal perfusion, particularly for differentiating pancreatic cancer from other pancreatic solid lesions, identifying mural nodules in intraductal papillary mucinous neoplasms, and estimating malignant potential of gastrointestinal stromal tumors...
October 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28913716/a-case-of-a-mucin-producing-bile-duct-tumor-diagnosed-over-the-course-of-6%C3%A2-years
#4
Sho Yamada, Yosuke Kato, Masahiro Hada, Masanori Kotake, Kaeko Oyama, Takuo Hara
We report a case of a mucin-producing intraductal papillary neoplasm of the intrahepatic bile duct (M-IPNB) diagnosed over a period of 6 years. A 64-year-old man underwent follow-up evaluations for an abdominal aortic aneurysm at our hospital. In 2009, a computed tomography (CT) scan revealed a simple hepatic cyst in segment 3 of the liver. Annual CT scans initially showed almost no change in the size or shape of the cyst. The cystic lesion, which measured 5 cm in 2014, had increased to 11 cm by 2015, and a solid component was detected within the cyst...
September 14, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28890216/my-treatment-approach-pancreatic-cysts
#5
Omer Basar, William R Brugge
Our treatment approach for either symptomatic or incidentally found pancreatic cysts continues to improve. The true incidence of pancreatic cysts is not known, and pancreatic cystic neoplasms, especially intraductal papillary mucinous neoplasms, are currently most commonly diagnosed and resected. This is a result of increasing awareness, widespread availability of imaging, and better understanding of the nature of pancreatic cysts as well. Recent studies on molecular analysis and devices such as microbiopsy forceps help us better define and select the treatment approach to alleviate symptoms and to prevent malignant tumors while avoiding unnecessary surgery...
September 7, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28860411/improved-detection-of-circulating-epithelial-cells-in-patients-with-intraductal-papillary-mucinous-neoplasms
#6
Joseph W Franses, Omer Basar, Abdurrahman Kadayifci, Osman Yuksel, Melissa Choz, Anupriya S Kulkarni, Eric Tai, Kevin D Vo, Kshitij S Arora, Niyati Desai, Joseph A Licausi, Mehmet Toner, Shyamala Maheswaran, Daniel A Haber, David P Ryan, William R Brugge, David T Ting
BACKGROUND: Recent work has demonstrated early shedding of circulating epithelial cells (CECs) from premalignant intraductal papillary mucinous neoplasms (IPMNs). However, the potential use of CECs as a "liquid biopsy" for patients with IPMNs has been limited by antigen dependence of CEC isolation devices and the lack of robust detection biomarkers across CEC phenotypes. MATERIALS AND METHODS: We utilized a negative depletion microfluidic platform to purify CECs from contaminating leukocytes and coupled this platform with immunofluorescence, RNA in situ hybridization, and RNA sequencing (RNA-seq) detection and enumeration...
August 31, 2017: Oncologist
https://www.readbyqxmd.com/read/28831506/-cystic-pancreatic-tumors-diagnostics-and-new-biomarkers
#7
REVIEW
A W Berger, T Seufferlein, A Kleger
Mortality due to pancreatic ductal adenocarcinoma (PDAC) will increase in the near future. The only curative treatment for PDAC is radical resection; however, even small carcinomas exhibit micrometastases leading to early relapse. Accordingly, detection of premalignant precursor lesions is important. In essence, PDAC develops from three precursor lesions: pancreatic intraepithelial lesions (PanIN), intraductal papillary-mucinous neoplasia (IPMN) and mucinous-cystic neoplasia (MCN). Together with serous cystic neoplasia (SCN) and solid pseudopapillary neoplasia (SPN), these cystic lesions constitute the most common cystic neoplasms in the pancreas...
August 22, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28815810/proteome-characterization-of-human-pancreatic-cyst-fluid-from-intraductal-papillary-mucinous-neoplasm-by-lc-ms-ms
#8
Joonho Park, Dohyun Han, Misol Do, Jongmin Woo, Joseph I Wang, Youngmin Han, Wooil Kwon, Sun-Whe Kim, Jin-Young Jang, Youngsoo Kim
RATIONALE: In recent years, the molecular components of pancreatic cyst fluid has been used for diagnosis and prognosis. Because the protein markers that are currently used in clinical tests are unreliable, proteomic studies to find new protein markers are being conducted. However, such researches have been limited due to the complexity of pancreatic cyst fluid and the immaturity of proteomic techniques. METHODS: To overcome these limitations and provide a pancreatic cyst proteome dataset, we examined cyst fluid proteome with tandem mass spectrometry...
August 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28776576/gnas-mutations-in-primary-mucinous-and-non-mucinous-lung-adenocarcinomas
#9
Lauren L Ritterhouse, Marina Vivero, Mari Mino-Kenudson, Lynette M Sholl, A John Iafrate, Valentina Nardi, Fei Dong
GNAS mutations have been described in mucinous and non-mucinous epithelial neoplasms of the appendix, pancreas, and colon, with hotspot GNAS mutations found in up to two-thirds of pancreatic intraductal papillary mucinous neoplasms. Additionally, many GNAS-mutated tumors have concurrent mutations in the Ras/Raf pathway. The clinicopathologic features of GNAS-mutated lung carcinomas, however, have not yet been characterized. Primary lung carcinomas from Brigham and Women's Hospital (n=1282) or Massachusetts General Hospital (n=1070) were genotyped on a targeted massively parallel sequencing panel of oncogenes and tumor suppressor genes including GNAS...
August 4, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28739282/long-term-risk-of-pancreatic-malignancy-in-patients-with-branch-duct-intraductal-papillary-mucinous-neoplasm-in-a-referral-center
#10
Ilaria Pergolini, Klaus Sahora, Cristina R Ferrone, Vicente Morales-Oyarvide, Brian M Wolpin, Lorelei A Mucci, William R Brugge, Mari Mino-Kenudson, Manuel Patino, Dushyant V Sahani, Andrew L Warshaw, Keith D Lillemoe, Carlos Fernández-Del Castillo
BACKGROUND & AIMS: Little is known about development of branch duct intraductal papillary mucinous neoplasms (BD-IPMNs). We evaluated long-term outcomes of a large cohort of patients with BD-IPMNs to determine risk of malignancy and define a subset of low-risk BD-IPMNs. METHODS: We performed a retrospective analysis of data from 577 patients with suspected or presumed BD-IPMN under surveillance at the Massachusetts General Hospital. Patients underwent cross-sectional imaging analysis at 3 months or later after their initial diagnosis...
July 21, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28724304/synchronous-intraductal-papillary-mucinous-neoplasm-and-a-pancreatic-neuroendocrine-tumor-more-than-a-coincidence
#11
Juliana M Costa, Sofia Carvalho, João B Soares
Although the association between intraductal papillary mucinous neoplasm of the pancreas (IPMN) and pancreatic neuroendocrine tumor (PNET) has been increasingly reported, whether this association is real or coincidence remains unclear. We report a case of synchronous IPMN and a PNET which were diagnosed preoperatively and discuss the tumorigenesis, clinicopathological features and management of these rare tumors based on the published literature. A 56-year-old male was incidentally diagnosed with a 14 mm branch duct IPMN and a 3...
July 14, 2017: Revista Española de Enfermedades Digestivas
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
#12
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
#13
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/28693147/pancreatic-intraductal-tubulopapillary-neoplasm-with-associated-invasive-cancer-successfully-treated-by-total-pancreatectomy-a-case-report
#14
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/28685935/gastric-gland-mucin-specific-o-glycan-expression-decreases-with-tumor-progression-from-precursor-lesions-to-pancreatic-cancer
#15
Ayumi Ohya, Kazuhiro Yamanoi, Hisashi Shimojo, Chifumi Fujii, Jun Nakayama
Pancreatic cancer is lethal, as it is often detected late. Thus, novel biomarkers of precursor lesions are needed to devise timely therapies. Pancreatic intraepithelial neoplasia (PanIN) and intraductal papillary mucinous neoplasm (IPMN) are major precursors of pancreatic cancer. In normal gastric mucosa, gastric gland mucin-specific O-glycans are unique in having α1,4-linked N-acetylglucosamine (αGlcNAc) residues attached to MUC6. Recently we reported that αGlcNAc functions as a tumor suppressor for differentiated-type gastric adenocarcinoma (Karasawa et al...
September 2017: Cancer Science
https://www.readbyqxmd.com/read/28682431/uptodate-in-the-assessment-and-management-of-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#16
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/28591030/pancreatic-carcinosarcoma-mimics-malignant-intraductal-papillary-mucinous-neoplasm-a-rare-case-report-and-literature-review
#17
REVIEW
Bing-Qi Li, Qiao-Fei Liu, Xiao-Yan Chang, Ya Hu, Jie Chen, Jun-Chao Guo
RATIONALE: Carcinosarcoma, an extremely rare pancreatic primary tumor, is characterized by coexistence of both carcinomatous and sarcomatous components. Due to its rarity, the clinical manifestation and imaging features have not been recognized. An accurate diagnostic method has not been available and a widely accepted guidelines instructing treatment has not been established. PATIENT CONCERNS: We present an uncommon case of pancreatic carcinosarcoma (PCS) which has been preoperatively diagnosed as pancreatic malignant intraductal papillary mucinous neoplasm...
June 2017: Medicine (Baltimore)
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
#18
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
#19
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/28550497/clinicopathological-features-of-intraductal-papillary-neoplasms-of-the-bile-duct-a-comparison-with-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-with-reference-to-subtypes
#20
Yuki Fukumura, Yasuni Nakanuma, Yuko Kakuda, Masaru Takase, Takashi Yao
Intraductal papillary epithelial neoplasms of the pancreatobiliary system (intraductal papillary neoplasm of the bile duct (IPNB) and intraductal papillary mucinous neoplasm (IPMN)) seem to share many clinicopathological features; however, IPNB has not been fully characterized. In order to understand the clinicopathological/immunohistochemical features of IPNB better, we compared 52 cases of IPNB with 42 cases of IPMNs with mural nodules. The IPNB cases were divided into two groups according to their histological similarity and according to five key histological findings...
July 2017: Virchows Archiv: An International Journal of Pathology
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