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intraductal papillary mucinous tumor

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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
#1
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/28412205/slc2a1-glut1-expression-in-mural-nodules-of-intraductal-papillary-mucinous-neoplasm-of-the-pancreas
#2
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
#3
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/28390868/small-nucleolar-noncoding-rna-snora23-upregulated-in-human-pancreatic-ductal-adenocarcinoma-regulates-expression-of-syne2-to-promote-growth-and-metastasis-of-xenograft-tumors-in-mice
#4
Lin Cui, Kenji Nakano, Sumalee Obchoei, Kiyoko Setoguchi, Masaki Matsumoto, Tsuyoshi Yamamoto, Satoshi Obika, Kazuaki Shimada, Nobuyoshi Hiraoka
BACKGROUND & AIMS: Small nucleolar noncoding RNAs (snoRNAs) regulate function of ribosomes, and specific snoRNAs are dysregulated in some cancer cells. We investigated dysregulation of snoRNAs in pancreatic ductal adenocarcinoma (PDAC) cells. METHODS: We investigated snoRNA expression in PDAC cell lines by cDNA microarray and quantitative reverse transcription (qRT)-PCR. In PDAC (n=133), intraductal papillary mucinous neoplasm (IPMN, n=16), mucinous cystic neoplasm-associated PDAC (n=1), and non-tumor pancreas (n=8) and liver (n=3) tissues from subjects who underwent surgical resection, levels of snoRNA were measured by qRT-PCR and compared with clinicopathological parameters and survival times determined by Kaplan Meier analysis...
April 5, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28383565/diversity-of-precursor-lesions-for-pancreatic-cancer-the-genetics-and-biology-of-intraductal-papillary-mucinous-neoplasm
#5
Krushna C Patra, Nabeel Bardeesy, Yusuke Mizukami
Pancreatic ductal adenocarcinoma (PDA), one of the most lethal cancers worldwide, is associated with two main types of morphologically distinct precursors-pancreatic intraepithelial neoplasia (PanIN) and intraductal papillary mucinous neoplasm (IPMN). Although the progression of PanIN into invasive cancer has been well characterized, there remains an urgent need to understand the biology of IPMNs, which are larger radiographically detectable cystic tumors. IPMNs comprise a number of subtypes with heterogeneous histopathologic and clinical features...
April 6, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28375170/serum-metabolomic-profiles-for-human-pancreatic-cancer-discrimination
#6
Takao Itoi, Masahiro Sugimoto, Junko Umeda, Atsushi Sofuni, Takayoshi Tsuchiya, Shujiro Tsuji, Reina Tanaka, Ryosuke Tonozuka, Mitsuyoshi Honjo, Fuminori Moriyasu, Kazuhiko Kasuya, Yuichi Nagakawa, Yuta Abe, Kimihiro Takano, Shigeyuki Kawachi, Motohide Shimazu, Tomoyoshi Soga, Masaru Tomita, Makoto Sunamura
This study evaluated the clinical use of serum metabolomics to discriminate malignant cancers including pancreatic cancer (PC) from malignant diseases, such as biliary tract cancer (BTC), intraductal papillary mucinous carcinoma (IPMC), and various benign pancreaticobiliary diseases. Capillary electrophoresismass spectrometry was used to analyze charged metabolites. We repeatedly analyzed serum samples (n = 41) of different storage durations to identify metabolites showing high quantitative reproducibility, and subsequently analyzed all samples (n = 140)...
April 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28374746/intracellular-hmgb1-as-a-novel-tumor-suppressor-of-pancreatic-cancer
#7
Rui Kang, Yangchun Xie, Qiuhong Zhang, Wen Hou, Qingping Jiang, Shan Zhu, Jinbao Liu, Dexing Zeng, Haichao Wang, David L Bartlett, Timothy R Billiar, Herbert J Zeh, Michael T Lotze, Daolin Tang
Pancreatic ductal adenocarcinoma (PDAC) driven by oncogenic K-Ras remains among the most lethal human cancers despite recent advances in modern medicine. The pathogenesis of PDAC is partly attributable to intrinsic chromosome instability and extrinsic inflammation activation. However, the molecular link between these two events in pancreatic tumorigenesis has not yet been fully established. Here, we show that intracellular high mobility group box 1 (HMGB1) remarkably suppresses oncogenic K-Ras-driven pancreatic tumorigenesis by inhibiting chromosome instability-mediated pro-inflammatory nucleosome release...
April 4, 2017: Cell Research
https://www.readbyqxmd.com/read/28371566/cytologic-features-and-clinical-implications-of-undifferentiated-carcinoma-with-osteoclastic-giant-cells-of-the-pancreas-an-analysis-of-15-cases
#8
Michelle D Reid, Takashi Muraki, Kim HooKim, Bahar Memis, Rondell P Graham, Daniela Allende, Jiaqi Shi, David F Schaeffer, Remmi Singh, Olca Basturk, Volkan Adsay
BACKGROUND: The cytologic features of undifferentiated pancreatic carcinoma with osteoclastic giant cells (UOC) are rarely described. METHODS: Cytologic and clinicopathologic characteristics in 15 UOC fine-needle aspiration (FNA) specimens were analyzed. RESULTS: FNA specimens were obtained from 6 men and 8 women with a mean age of 65 years who had UOCs (head, n = 7; body, n = 3; and tail, n = 4) with a mean radiologic size 7.3 cm, and some had a cystic component (n = 9)...
April 3, 2017: Cancer
https://www.readbyqxmd.com/read/28369074/annexin-a10-is-a-candidate-marker-associated-with-the-progression-of-pancreatic-precursor-lesions-to-adenocarcinoma
#9
Jianhui Zhu, Jing Wu, Xiucong Pei, Zhijing Tan, Jiaqi Shi, David M Lubman
Annexins are a multigene family of calcium and phospholipid-binding proteins that play important roles in calcium signaling, cell motility, differentiation and proliferation. Our previous mass spectrometry-based proteomics study revealed that annexin A10 (ANXA10) was uniquely overexpressed in pancreatic CD24+ adenocarcinoma cells that were dissected from clinical PDAC tissues but was absent in CD24- adjacent normal cells. The correlation between ANXA10 expression and the progression of pancreatic cancer remains unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28368927/heterotopic-pancreas-of-the-gastrointestinal-tract-and-associated-precursor-and-cancerous-lesions-systematic-pathologic-studies-of-165-cases
#10
Sun-Young Jun, Dahye Son, Mi-Ju Kim, Sung Joo Kim, Soyeon An, Young Soo Park, Sook Ryun Park, Kee Don Choi, Hwoon-Yong Jung, Song Cheol Kim, Jeong Hwan Yook, Byung-Sik Kim, Seung-Mo Hong
Heterotopic pancreas (HP) can be detected by accompanying symptoms or incidentally during gastrointestinal (GI) tract tumor resection. We compared clinicopathologic features among 165 resected HPs (57 gastric [35%], 56 duodenal [34%], 30 omental [18%], and 22 jejunal [13%]). Symptomatic HPs (79/135 GI tract wall HPs, 59%) were larger (P=0.05), more common in younger patients and in a gastric location (both P<0.001), and more frequently associated with lymphoid cuffs (P=0.03) than incidentally found HPs. Gastric/jejunal HPs were more frequently symptomatic (P<0...
March 31, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28337739/intraductal-neoplasms-of-the-bile-duct-a-new-challenge-to-biliary-tract-tumor-pathology
#11
REVIEW
Yasuni Nakanuma, Katsuhiko Uesaka, Shiro Miyayama, Hiroshi Yamaguchi, Masayuki Ohtsuka
Invasive biliary tract carcinomas are usually tubular adenocaricnomas with abundant desmoplastic reactions and frequent ductal and periductal invasion at the time of the diagnosis. Recently, several intraductal neoplasms of the bile duct, particularly at a pre-invasive stage, have been recognized. They include intraductal papillary neoplasm of the bile duct (IPNB), biliary intraepithelial neoplasm (BilIN), and others, such as intraductal tubulopapillary neoplasm (ITPN) of the bile duct. IPNBs are grossly visible predominantly intraductal-growing papillary neoplasms covered by well-differentiated neoplastic epithelium with fine fibrovascular cores in the dilated bile ducts...
March 24, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28278438/diagnosis-of-autoimmune-pancreatitis-with-cholesterol-granuloma-mimicking-intraductal-papillary-mucinous-carcinoma-a-case-report
#12
Yusuke Takahashi, Naoyuki Yokoyama, Daisuke Sato, Tetsuya Otani, Koko Mitsuma, Hideki Hashidate
INTRODUCTION: Pancreatic cysts are often observed incidentally on abdominal computed tomography (CT). For cysts involving intracystic nodules, malignant neoplasms such as intraductal papillary-mucinous carcinoma (IPMC) should be suspected. In contrast, cholesterol granuloma (CG) rarely occurs in the pancreas, and CG-associated autoimmune pancreatitis (AIP) has not yet been reported. To our knowledge, this is the first reported case of AIP with CG mimicking IPMC. PRESENTATION OF CASE: A 56-year-old woman underwent abdominal CT for preoperative breast cancer screening...
March 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28269978/differential-diagnosis-between-intraductal-papillary-mucinous-neoplasm-with-an-associated-invasive-carcinoma-and-pancreatic-ductal-adenocarcinoma-on-ultrasonography-the-utility-of-echo-intensity-and-contrast-enhancement
#13
Masato Saito, Naoki Hirokawa, Yoko Usami, Masanori Someya, Koh-Ichi Sakata
Purpose: The aim of this study was to investigate the utility of echo intensity and contrast enhancement in the differential diagnosis between intraductal papillary mucinous neoplasm with an associated invasive carcinoma (IPMN-IC) and pancreatic ductal adenocarcinoma (PDAC) on ultrasonography. Methods: This study included eight and 33 patients who had pathologically confirmed IPMN-IC and PDAC, respectively, and were enrolled for a comparative analysis of the sonographic features of the tumors...
February 4, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28196015/genomic-characterization-of-low-and-high-grade-pancreatic-mucinous-cystic-neoplasms-reveals-recurrent-kras-alterations-in-high-risk-lesions
#14
James R Conner, Adrián Mariño-Enríquez, Mari Mino-Kenudson, Elizabeth Garcia, Martha B Pitman, Lynette M Sholl, Amitabh Srivastava, Leona A Doyle
OBJECTIVES: Pancreatic ductal adenocarcinoma arises from the following 3 distinct precursor lesions: pancreatic intraepithelial neoplasia, intraductal papillary mucinous neoplasm, and mucinous cystic neoplasm (MCN). Genetic abnormalities in the first 2 precursor lesions have been well characterized, but there are limited data on progression pathways in MCNs. This study aimed to characterize genomic differences between MCNs with low-grade (LG) and high-grade (HG) dysplasia or carcinoma...
May 2017: Pancreas
https://www.readbyqxmd.com/read/28153575/intraductal-papillary-mucinous-neoplasms-of-the-pancreas-correlation-of-helical-computed-tomography-ct-features-with-pathologic-findings
#15
Wanbo Xu, Xiaojin Liu, Jiawen Zhang, Li Yang
RATIONALE AND OBJECTIVES: Intraductal papillary mucinous neoplasms (IPMNs) are precancerous lesions of the pancreas. Computed tomography (CT) has been recommended to screen the malignant potential of IPMNs. However, data evaluating the use of CT to differentiate categories of IPMN based on disease progression are limited. This study aimed to explore the correlation between CT characteristics and pathology in IPMN associated with invasive carcinoma. MATERIALS AND METHODS: A total of 31 patients with intraductal papillary mucinous carcinoma (IPMC) treated at one local regional hospital in Shanghai, China, were enrolled in this study...
January 30, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28133317/-pancreatic-adenosquamous-carcinoma-that-developed-after-resection-of-ipma-in-the-pancreatic-tail
#16
Akinao Kaneta, Takao Tsuchiya, Takahiro Saito, Satoshi Otani, Fujio Ito, Junichi Miura
Pancreatic adenosquamous carcinoma coexisting with intraductal papillary mucinous neoplasm(IPMN)is extremely rare. We report a rare case of pancreatic adenosquamous carcinoma that developed after resection of intraductal papillary mucinous adenoma(IPMA). A 67-year-old man was suspected of having a pancreatic cystic lesion. MRCP demonstrated a cystic lesion measuring 25mm in the pancreatic tail, which had an enhanced nodule. We therefore diagnosed branch duct type IPMN of the pancreas. Although pancreatic juice cytology did not indicate malignancy, we performed laparoscope-assisted distal pancreatectomy...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133201/-long-term-survival-in-response-to-multimodality-therapy-in-a-patient-with-invasive-pancreatic-cancer-with-cyst-formation
#17
Hironobu Makino, Hisashi Kametaka, Tadaomi Fukada, Kazuhiro Seike, Akio Hasegawa, Masaru Isozaki
The patient was a 61-year-old man. Computed tomography(CT)in April 2007 revealed a pancreatic cyst in the tail of the pancreas. Rapid enlargement was noted in November 2007, and the patient was referred to the surgery department. CT showed a cystic lesion containing a nodular shadow in the pancreatic tail. Tumor marker measurements yielded normal carcinoembryonic antigen(CEA)and carbohydrate antigen 19-9(CA19-9)levels, but the duke pancreatic monoclonal antigen type 2(DUPAN-2)level was elevated. A diagnosis of mucinous cystic neoplasm(MCN)of the pancreas was made in December 2007, and distal pancreatectomy and partial colectomy were performed...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133192/-a-radically-resected-case-of-ruptured-ipmc-of-the-pancreas-after-abscess-drainage-using-an-endoscopic-naso-pancreatic-drainage-tube
#18
Arata Furukawa, Satoshi Kuboki, Hiroaki Shimizu, Masayuki Ohtsuka, Hideyuki Yoshitomi, Katsunori Furukawa, Tsukasa Takayashiki, Shigetsugu Takano, Daisuke Suzuki, Nozomu Sakai, Shingo Kagawa, Hiroyuki Nojima, Masaru Miyazaki
A 79-year-old man was referred to our hospital because of sudden upper abdominal pain. Enhanced computed tomography revealed a huge multilocular cystic tumor with a thickened wall, which was connected with the main pancreatic duct of the pancreatic body. Abscess formation was seen inside the omental bursa; however, there were no signs of direct invasion of the cystic tumor into the stomach or transverse colon. Therefore, we performed emergency endoscopic naso-pancreatic drainage(ENPD)under the diagnosis of an intraperitoneal abscess caused by rupture of intraductal papillary mucinous carcinoma(IPMC)...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133130/-a-resected-case-of-intraductal-pupillary-mucinous-neoplasm-of-the-pancreas-characterized-by-recurrence-in-the-remnant-pancreas-and-multiple-malignant-neoplasms-in-other-organs
#19
Ryo Yoshioka, Yoshito Tomimaru, Kozo Noguchi, Hirotsugu Nagase, Atsushi Hamabe, Masashi Hirota, Kazuteru Oshima, Tsukasa Tanida, Tomono Kawase, Shunji Morita, Hiroshi Imamura, Takashi Iwazawa, Kenzo Akagi, Shiro Adachi, Keizo Dono
A 74-year-old man underwent pancreaticoduodenectomy for intraductal pupillary mucinous neoplasm(IPMN)of the pancreatic head. Histopathological examination of the specimen revealed non-invasive intraductal papillary mucinous carcinoma( IPMC). Two years after surgery, recurrent IPMN developed in the remnant pancreas, and a liver tumor was identified in S8 of the liver. The patient underwent total pancreatectomy of the remnant pancreas and partial resection of S8. These tumors were histopathologically diagnosed as invasive IPMC and hepatocellular carcinoma, respectively...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133049/-advanced-digestive-cancer-in-super-elderly-patients-more-than-85-years-old-two-cases-that-required-major-invasive-surgery
#20
Shigeru Ueda, Kenichi Nomoto, Tomonori Nakanoko, Hirofumi Hasegawa, Tomonobu Gion, Masayuki Kitamura
Case 1 involved an 87-year-old woman. She had increased serum amylase levels, and intraductal papillary mucinous adenocarcinoma( IPMC)in the accessory pancreatic duct was diagnosed following various medical examinations. Radical surgery is possible for such a lesion when there are no issues detected following evaluation. The patient and her family decided that she should undergo surgery; therefore, pancreatoduodenectomy was performed for Stage III IPMC. Various morbidities required medical treatment, but she was finally discharged from hospital 89 days after surgery...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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