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Pancreatic cancer mri

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https://www.readbyqxmd.com/read/28932093/postoperative-inflammation-as-a-possible-cause-of-portal-vein-thrombosis-after-irreversible-electroporation-for-locally-advanced-pancreatic-cancer
#1
Jun-Jun Su, Ming Su, Kai Xu, Peng-Fei Wang, Li Yan, Shi-Chun Lu, Wan-Qing Gu, Yong-Liang Chen
Portal vein thrombosis (PVT) is a rare but serious postoperative complication associated with irreversible electroporation (IRE). We report a case of postoperative PVT in a 54-year-old woman who underwent IRE for locally advanced pancreatic cancer. Drain removal and discharge of the patient from the hospital were scheduled on postoperative day (POD) 7; however, a magnetic resonance imaging scan revealed the presence of PVT. We suspected postoperative inflammation in the pancreas as the main cause of PVT. However, the patient did not undergo any medical treatment because she did not have any clinical symptoms, and she was discharged on POD 8...
August 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28910821/vascular-disrupting-agent-in-pancreatic-and-hepatic-tumour-allografts-observations-of-location-dependent-efficacy-by-mri-microangiography-and-histomorphology
#2
Ting Yin, Yewei Liu, Ronald Peeters, Yuanbo Feng, Jie Yu, Uwe Himmelreich, Raymond Oyen, Yicheng Ni
BACKGROUND: Tumours growing in organs of different vascular environment could exhibit diverse responses to vascular disrupting agent (VDA). This study was aimed to identify in vivo imaging biomarkers for evaluation of pancreatic and hepatic tumours and comparison of their responses to a VDA Combretastatin A4 Phosphate (CA4P) using multiparametric MRI. METHODS: Male WAG/Rij rats were used for orthotopic pancreatic head tumour and hepatic tumour implantation; tumour growth was monitored by 3D isotropic MRI using a 3...
September 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28903340/multi-modality-imaging-monitored-creation-of-rat-orthotopic-pancreatic-head-cancer-with-obstructive-jaundice
#3
Zhibin Bai, Yaoping Shi, Jianfeng Wang, Longhua Qiu, Gaojun Teng, Feng Zhang, Xiaoming Yang
PURPOSE: To investigate the feasibility of using multi-modality imaging to monitor the creation of rat models with orthotopic pancreatic head cancer with obstructive jaundice. RESULTS: 27 of 52 rats (51.92%) developed pancreatic head cancer. The tumor formation rate was significantly higher in the animal group receiving bioluminescent tumor, compared to the group receiving non-bioluminescent donor tumors [78.1% (25/32 rats) vs 10.0% (2/20 rats), P = 0.0001]. Both ultrasound imaging and MRI clearly characterized the orthotopic tumors...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902791/initial-features-of-hepatic-metastases-from-pancreatic-cancer-histological-and-radiolographical-appraisal-of-hepatic-micrometastases-detected-by-real-time-fluorescent-imaging
#4
Tomohiro Katada, Hideki Hashidate, Naoyuki Yokoyama, Natsuru Sudo, Koko Mitsuma, Tetsuya Otani
OBJECTIVE: The pathophysiology of primary-stage hepatic metastases from gastrointestinal cancers may provide clues to their formation. We investigated initial features of hepatic metastases from pancreatic cancer by examining the histologies of radiographically occult hepatic micrometastases. METHODS: We examined 133 consecutive pancreatic cancer patients with no evident hepatic metastases on preoperative imaging. An indocyanine green near-infrared camera system was used to detect hepatic metastases during surgery; preoperatively acquired images of patients were then retrospectively reviewed...
October 2017: Pancreas
https://www.readbyqxmd.com/read/28902738/false-positive-pancreatic-uptake-detected-on-68ga-psma-pet-ct-a-priority-changing-incidental-finding-while-assessing-the-need-for-a-prostate-biopsy
#5
Mehmet Onur Demirkol, Murat Can Kiremit, Omer Acar, Alan Alper Sag, Yersu Kapran
A 72-year-old man underwent Ga-PSMA PET/CT because of an elevated prostate-specific antigen level despite prior prostatectomy. Besides low-intensity prostatic PSMA reactivities, a faintly PSMA-positive lesion in the pancreatic corpus drew attention, which seemed suggestive of a primary pancreatic cancer on the subsequent MRI and therefore had to be excised. The final diagnosis was pT3 low-grade neuroendocrine tumor. PSMA-positive incidentalomas, detected on Ga-PSMA PET/CT, can reveal more clinically significant extraprostatic disorders...
September 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28898198/appropriate-interval-for-imaging-follow-up-of-small-simple-pancreatic-cysts
#6
Jordan Menda, Maile E Yoon, Hyo-Chun Yoon
CONTEXT: The frequency at which patients should undergo follow-up imaging of small pancreatic cysts is problematic because different medical societies have different follow-up guidelines. OBJECTIVE: To determine whether short-term follow-up of small pancreatic cysts is necessary to detect pancreatic cancer or cystic neoplasia. DESIGN: We retrospectively reviewed all abdominal magnetic resonance imaging (MRI) studies obtained in a geographically isolated health maintenance organization between January 1, 2012, and December 31, 2014, looking for pancreatic cysts...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28886329/a-case-of-igg4-related-retroperitoneal-fibrosis-with-multiple-involvement
#7
Y-K Zheng, N-Y Gu, J Wu, X Fang, C Zhang, Q-Y Li
To increase awareness of IgG4-related retroperitoneal fibrosis (IgG4-RRPF) and reduce clinical misdiagnosis. We report a 79-year-old man with multiple organs involvement of IgG4-RRPF, who developed right lower extremity edema, hemoptysis and fever. The abdomen computed tomography (CT) scan image showed lymph nodes enlargement. The positron emission tomography/CT scan image showed pancreatic malignancy with multiple nodal lymph node metastasis, lung fibroblast proliferation, and right lung apex bullae. The chest CT scan image showed pulmonary multiple lymph nodes with calcification in the mediastinum...
August 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28872701/natural-history-of-pancreatic-cystic-lesions-a-multicenter-prospective-observational-study-for-evaluating-the-risk-of-pancreatic-cancer
#8
Eizaburo Ohno, Yoshiki Hirooka, Hiroki Kawashima, Takuya Ishikawa, Akira Kanamori, Hideki Ishikawa, Yoji Sasaki, Koji Nonogaki, Kazuo Hara, Senju Hashimoto, Hiroshi Matsubara, Takanori Hirai, Hajime Sumi, Hiroyuki Sugimoto, Hidemi Goto
BACKGROUD AND AIM: To elucidate the natural history of pancreatic cystic lesions (PCLs), including branch-duct intraductal papillary mucinous neoplasm (BD-IPMN), via mid-term follow-up analysis of a multicenter prospective observational study (NSPINAL study). METHODS: From July 2011 to October 2016, 881 patients with PCLs were enrolled in NSPINAL study, and 664 patients with >12 months of follow-up were analysed. Every patient was asymptomatic, and endoscopic ultrasound (EUS) was performed at the initial diagnosis to exclude high-risk individuals...
September 5, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28857897/mri-assessed-pancreatic-morphology-and-exocrine-function-are-associated-with-disease-burden-in-chronic-pancreatitis
#9
Adnan Madzak, Søren Schou Olesen, Jakob Lykke Poulsen, Esben Bolvig Mark, Asbjørn Mohr Drewes, Jens Brøndum Frøkjær
BACKGROUND AND AIM: The aim of this study was to explore the association between morphological and functional secretin-stimulated MRI parameters with hospitalization, quality of life (QOL), and pain in patients with chronic pancreatitis (CP). PATIENTS AND METHODS: This prospective cohort study included 82 patients with CP. Data were obtained from clinical information, QOL, and pain as assessed by questionnaires (The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire and modified Brief Pain Inventory short form)...
August 29, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28842734/-resection-of-main-duct-and-mixed-type-ipmn-%C3%A2-5%C3%A2-mm
#10
REVIEW
G O Ceyhan, F Scheufele, H Friess
The incidence of cystic pancreatic lesions is steadily increasing due to the technical advances in imaging. Within the group of cystic pancreatic lesions intraductal papillary mucinous neoplasms (IPMNs) depict an important entity. Due to a possible progression to malignancy the clinical strategy has to be well chosen. For primary diagnostic work-up imaging by magnetic resonance imaging (MRI) with MR cholangiopancreatography (MRCP) and computed tomography (CT) scanning is recommended. Additional information can be gained by endosonography and a biopsy of the cystic lesion, allowing analysis of biomarkers, such as GNAS and KRAS mutation as wells as NLR...
August 25, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28814809/non-thermal-plasma-treated-solution-demonstrates-antitumor-activity-against-pancreatic-cancer-cells-in-vitro-and-in-vivo
#11
Kim Rouven Liedtke, Sander Bekeschus, André Kaeding, Christine Hackbarth, Jens-Peter Kuehn, Claus-Dieter Heidecke, Wolfram von Bernstorff, Thomas von Woedtke, Lars Ivo Partecke
Pancreatic cancer is associated with a high mortality rate. In advanced stage, patients often experience peritoneal carcinomatosis. Using a syngeneic murine pancreatic cancer cell tumor model, the effect of non-thermal plasma (NTP) on peritoneal metastatic lesions was studied. NTP generates reactive species of several kinds which have been proven to be of relevance in cancer. In vitro, exposure to both plasma and plasma-treated solution significantly decreased cell viability and proliferation of 6606PDA cancer cells, whereas mouse fibroblasts were less affected...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808290/molecular-mr-imaging-of-fibrosis-in-a-mouse-model-of-pancreatic-cancer
#12
Miloslav Polasek, Yan Yang, Daniel T Schühle, Mohammad A Yaseen, Young R Kim, Yu Sub Sung, Alexander R Guimaraes, Peter Caravan
Fibrosis with excessive amounts of type I collagen is a hallmark of many solid tumours, and fibrosis is a promising target in cancer therapy, but tools for its non-invasive quantification are missing. Here we used magnetic resonance imaging with a gadolinium-based probe targeted to type I collagen (EP-3533) to image and quantify fibrosis in pancreatic ductal adenocarcinoma. An orthotopic syngeneic mouse model resulted in tumours with 2.3-fold higher collagen level compared to healthy pancreas. Animals were scanned at 4...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28771447/chronic-pancreatitis
#13
Dennis Yang, Chris E Forsmark
PURPOSE OF REVIEW: Summarize key clinical advances in chronic pancreatitis reported in 2016. RECENT FINDINGS: Early diagnosis of chronic pancreatitis remains elusive. Recent studies suggest that endoscopic ultrasound may be less accurate than previously thought and new MRI techniques may be helpful. Genetic predisposition may independently affect the clinical course of chronic pancreatitis and the risk for pancreatic cancer. Cigarette smoking may have a greater negative impact on chronic pancreatitis than previously thought and moderate alcohol consumption may be protective...
September 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28765698/early-radiological-assessment-of-locally-advanced-pancreatic-cancer-treated-with-electrochemotherapy
#14
Vincenza Granata, Roberta Fusco, Sergio Venanzio Setola, Mauro Piccirillo, Maddalena Leongito, Raffaele Palaia, Francesco Granata, Secondo Lastoria, Francesco Izzo, Antonella Petrillo
AIM: To report early imaging assessment of ablated area post electrochemotherapy (ECT) in patients with locally advanced pancreatic cancer (LAPC). METHODS: ECT was performed in 19 LAPC patients enrolled in an approved ongoing clinical phase I/II study. Before and after ECT, 18 patients underwent computed tomography (CT) scan, 11 patients underwent morphological and functional magnetic resonance (MR) scan (dynamic contrast enhanced-MRI) calculating wash-in slope (WIS) and wash-out slope (WOS); diffusion weighted imaging calculating pseudo-diffusivity (Dp), perfusion fraction (fp) and tissue diffusivity (Dt); 10 patients underwent positron emission tomography (PET)...
July 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28750659/alliance-for-clinical-trials-in-oncology-alliance-trial-a021501-preoperative-extended-chemotherapy-vs-chemotherapy-plus-hypofractionated-radiation-therapy-for-borderline-resectable-adenocarcinoma-of-the-head-of-the-pancreas
#15
Matthew H G Katz, Fang-Shu Ou, Joseph M Herman, Syed A Ahmad, Brian Wolpin, Robert Marsh, Spencer Behr, Qian Shi, Michael Chuong, Lawrence H Schwartz, Wendy Frankel, Eric Collisson, Eugene J Koay, JoLeen M Hubbard, James L Leenstra, Jeffrey Meyerhardt, Eileen O'Reilly
BACKGROUND: Borderline resectable pancreatic cancers infiltrate into adjacent vascular structures to an extent that makes an R0 resection unlikely when pancreatectomy is performed de novo. In a pilot study, Alliance for Clinical Trials in Oncology Trial A021101, the median survival of patients who received chemotherapy and radiation prior to anticipated pancreatectomy was 22 months, and 64% of operations achieved an R0 resection. However, the individual contributions of preoperative chemotherapy and radiation therapy to therapeutic outcome remain poorly defined...
July 27, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28736585/late-onset-asymptomatic-pancreatic-neuroendocrine-tumor-a-case-report-on-the-phenotypic-expansion-for-men1
#16
Charu Kaiwar, Sarah K Macklin, Jennifer M Gass, Jessica Jackson, Eric W Klee, Stephanie L Hines, John A Stauffer, Paldeep S Atwal
BACKGROUND: Multiple endocrine neoplasia type 1 (MEN1) is a hereditary cancer syndrome associated with several endocrine as well as non-endocrine tumors and is caused by mutations in the MEN1 gene. Primary hyperparathyroidism affects the majority of MEN1 individuals by age 50 years. Additionally, MEN1 mutations trigger familial isolated hyperparathyroidism. We describe a seemingly unaffected 76-year-old female who presented to our Genetics Clinic with a family history of primary hyperparathyroidism and the identification of a pathogenic MEN1 variant...
2017: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/28732002/-gastrointestinal-stromal-tumor-in-young-pregnant-woman-case-report
#17
Walker Del Cid Jove Oblitas, Miguel Joseph Abril Barreda
Female patient, 28 years old, with a gestation of 14 weeks, natural and from Ilo-Moquegua. Came with a time of disease 4 days with hematemesis, melena, epigastric pain and syncope. Background of colonic resection for peritonitis due to trauma 20 years ago; upper gastrointestinal bleeding three years ago; paternal grandparents died of gastric cancer; chronic gastritis diagnosed from 19 year old. In laboratory studies hemoglobin of 9.2. In the upper gastrointestinal endoscopy was found absence of active upper gastrointestinal bleeding, a large tumor in proximal body toward greater curvature and posterior wall, 8 cm in diameter approximately, lobed appearance, with most of the mucosal surface unscathed is evidence, areas of ulceration of 2-3 mm covered with fibrin (biopsies taken), hard consistency, tent sign (positive) and cushionsign (negative)...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28719864/in-vivo-magnetic-resonance-imaging-of-pancreatic-tumors-using-iron-oxide-nanoworms-targeted-with-ptr86-peptide
#18
Yasaman Ahmadi, Genady Kostenich, Mor Oron-Herman, Wolfgang Wadsak, Markus Mitterhauser, Arie Orenstein, Siroos Mirzaei, Peter Knoll
To cut the high mortality rate of malignant disease such as pancreatic cancer, development of newly diagnostic probes for early stage detection of tumor lesions is required. Multimodal imaging nanoprobes allowing targeted and real time functional/anatomical imaging of tumors meet the demands. For this purpose, a MRI/optical dual-modality probe based on biodegradable magnetic iron oxide nanoworms has been developed. The cross-linked surface of nanoworms were anchored to fluorescent dyes and to FITC.PTR86; a novel synthetic peptide with high affinity towards somatostatin receptors...
July 6, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28704462/a-longitudinal-mri-study-on-lymph-nodes-histiocytosis-of-a-xenograft-cancer-model
#19
María Jiménez-González, Sandra Plaza-García, Janire Arizeta, Silvia Bianchessi, César Trigueros, Torsten Reese
BACKGROUND: Efforts are continuously made to detect and investigate the pivotal processes and interplay between the response of sentinel lymph node and malignant cells from a primary tumor. Conversely, some frequently used tumor animal models, such as human cancer xenografts, rarely feature metastasis. Therefore, lymph node alterations are seldom assessed. We consider that studying lymph node response could contribute to the understanding of host reaction to cancer. In the present study, we explored the presence of regional lymph node alterations in parallel with tumor growth using a pancreatic tumor xenograft model which does not develop metastasis...
2017: PloS One
https://www.readbyqxmd.com/read/28702373/murine-pancreatic-acinar-cell-carcinoma-growth-kinetics-are-independent-of-dietary-vitamin-d-deficiency-or-supplementation
#20
James Dooley, Vasiliki Lagou, Nathalie Heirman, Tom Dresselaers, Uwe Himmelreich, Adrian Liston
Vitamin D has been proposed as a therapeutic strategy in pancreatic cancer, yet evidence for an effect of dietary vitamin D on pancreatic cancer is ambiguous, with conflicting data from human epidemiological and intervention studies. Here, we tested the role of dietary vitamin D in the in vivo context of the well-characterized Ela1-TAg transgenic mouse model of pancreatic acinar cell carcinoma. Through longitudinal magnetic resonance imaging of mice under conditions of either dietary vitamin D deficiency (<5 IU/kg vitamin D) or excess (76,500 IU/kg vitamin D), compared to control diet (1,500 IU/kg vitamin D), we measured the effect of variation of dietary vitamin D on tumor kinetics...
2017: Frontiers in Oncology
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