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Pancreas imaging

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https://www.readbyqxmd.com/read/29777518/total-pancreatic-necrosis-after-organophosphate-intoxication
#1
Rui Hou, Hongmin Zhang, Huan Chen, Yuankai Zhou, Yun Long, Dawei Liu
Cases of acute pancreatitis induced by organophosphate intoxication are encountered occasionally in clinics, but very few of them develop into severe pancreas necrosis and irreversible pancreatic function impairment. Here, we report a 47-year-old female organophosphate poisoning case after ingestion of massive insecticides; she was considered to have total necrosis and function failure of the pancreas via serum amylase test, glucose level test, and CT imaging. The patient exhibited no relief under the regular medicine treatment, which included sandostatin, antibiotics, intravenous atropine, and pralidoxime methiodide...
May 18, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29769055/one-visceral-artery-may-be-enough-successful-pancreatectomy-in-a-patient-with-total-occlusion-of-the-celiac-and-superior-mesenteric-arteries
#2
Evangelos Tagkalos, Florian Jungmann, Hauke Lang, Stefan Heinrich
BACKGROUND: The anatomic variations of the visceral arteries are not uncommon. The liver arterial blood supply shows 50% variability between humans, with the most common anatomy being one hepatic artery arising from the celiac trunk and one pancreatico-duodenal arcade between the celiac trunk and the superior mesenteric artery. Occlusion of one artery are mostly asymptomatic but may become clinically relevant when surgery of the liver, bile duct or the pancreas is required. If these pathologies are not reversible, an oncologic pancreatic head resection cannot be performed...
May 16, 2018: BMC Surgery
https://www.readbyqxmd.com/read/29764827/not-so-mass-effect-finding-of-a-remarkable-incidentaloma-in-a-teenager-with-neurofibromatosis
#3
Daniel John Keen, Hannah Norman-Bruce, Salah Mansy
A 13-year-old boy with neurofibromatosis type 1 presented to the emergency department twice in a fortnight with moderate intermittent abdominal pain, radiating to the back and associated with nausea and vomiting. He examined as a well child with a soft abdomen and minimal tenderness. A history of constipation was identified but he failed to respond to a trial of laxatives. Subsequent ultrasound abdomen demonstrated a large mass surrounding the porta hepatis. MRI further characterised a focal, non-aggressive lesion extending from his liver, encapsulating his pancreas, portal vessels and laterally displacing his spleen and left kidney...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29761521/negative-predictive-value-of-contrast-enhanced-ultrasound-in-differentiating-avascular-solid-appearing-from-vascularized-masses-a-retrospective-consecutive-study
#4
Abdulmohsen Alrashed, Hassan Ahmad, Korosh Khalili, Tae Kyoung Kim, Huynh-Jung Jang, Mostafa Atri
OBJECTIVES: To determine the negative predictive value (NPV) of contrast-enhanced ultrasound (CEUS) to establish the lack of vascularity in a mass. METHODS: This work was an Institutional Review Board-approved, Health Insurance Portability and Accountability Act-compliant retrospective study. Acquisition of consent was waived. We included all CEUS examinations performed for tissue characterization between 2004 and 2014 that reported showing no vascularity in a mass...
May 15, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29757145/frequency-of-bile-duct-confluence-variations-in-subjects-with-pancreas-divisum-an-analysis-of-mrcp-findings
#5
Ayşegül Gürsoy Çoruh, Başak Gülpınar, Hakan Baş, Ayşe Erden
PURPOSE: We aimed to evaluate the frequency of bile duct branching pattern variations at the hepatic confluence in patients with pancreas divisum (PD). METHODS: A search was performed through the hospital database using the keyword "pancreas divisum" to identify patients. The magnetic resonance cholangiopancreatography (MRCP) images of 137 patients who were diagnosed with PD between August 2011 and November 2016 were retrospectively analyzed for the presence of bile duct variations...
March 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29753278/adult-pancreatoblastoma-a-case-report-and-clinicopathological-review-of-the-literature
#6
Menglin Chen, Haijie Zhang, Yixin Hu, Kai Liu, Yanjia Deng, Yuanmeng Yu, Yulan Wu, Anqi Qi, Yingjia Li, Ge Wen
PURPOSE: Our purpose was to report a case of adult pancreatoblastoma, and review the literature in order to assist clinicians in the management of the disease. MATERIALS AND METHODS: The demographic, clinical, and imaging findings of 41 patients with pathologically proven pancreatoblastoma from 1986 to 2017 identified in PubMed were reviewed. The key words used for searching PubMed were: "pancreatoblastoma", "pancreatic tumor", and "adult pancreatoblastoma...
May 4, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29751784/henoch-sch%C3%A3-nlein-purpura-with-acute-pancreatitis-analysis-of-13-cases
#7
Qin Zhang, Qi Guo, Ming Gui, Zhenhua Ren, Bo Hu, Ling Lu, Fang Deng
BACKGROUND: Henoch-Schönlein purpura is a common small vessel vasculitis in children. Acute pancreatitis rarely presents as a complication of Henoch-Schönlein purpura and has not been well characterized. METHODS: We retrospectively reviewed 13 cases of Henoch-Schönlein purpura with acute pancreatitis among 3212 patients who attended our hospital between January 2003 and June 2016 and analyzed their clinical characteristics, laboratory findings, imaging findings, treatment and overall prognosis...
May 11, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29750397/fdg-pet-ct-in-the-evaluation-of-primary-and-secondary-pancreatic-malignancies
#8
Casey E Bohl, Sara M Federico, Giles W Robinson, Armita Bahrami, Barry L Shulkin
PURPOSE: Primary pancreatic carcinoma and pancreatic metastases are rare in the pediatric population. Pancreatoblastoma is the most common pancreatic malignant tumor in young children and solid-pseudopapillary tumor in teenagers. Pancreatic adenocarcinoma is extremely rare under the age of 40 and is usually associated with underlying genetic abnormalities. Secondary malignancies of the pancreas occur more frequently than primary pancreatic malignancies in children and are most commonly seen with non-Hodgkin lymphomas (NHL) and mesenchymal sarcomas...
May 11, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29745840/hierarchical-combinatorial-deep-learning-architecture-for-pancreas-segmentation-of-medical-computed-tomography-cancer-images
#9
Min Fu, Wenming Wu, Xiafei Hong, Qiuhua Liu, Jialin Jiang, Yaobin Ou, Yupei Zhao, Xinqi Gong
BACKGROUND: Efficient computational recognition and segmentation of target organ from medical images are foundational in diagnosis and treatment, especially about pancreas cancer. In practice, the diversity in appearance of pancreas and organs in abdomen, makes detailed texture information of objects important in segmentation algorithm. According to our observations, however, the structures of previous networks, such as the Richer Feature Convolutional Network (RCF), are too coarse to segment the object (pancreas) accurately, especially the edge...
April 24, 2018: BMC Systems Biology
https://www.readbyqxmd.com/read/29745561/-image-segmentation-and-classification-of-cytological-cells-based-on-multi-features-clustering-and-chain-splitting-model
#10
Pin Wang, Qianqian Liu, Lirui Wang, Yongming Li, Shujun Liu, Fang Yan
The diagnosis of pancreatic cancer is very important. The main method of diagnosis is based on pathological analysis of microscopic image of Pap smear slide. The accurate segmentation and classification of images are two important phases of the analysis. In this paper, we proposed a new automatic segmentation and classification method for microscopic images of pancreas. For the segmentation phase, firstly multi-features Mean-shift clustering algorithm (MFMS) was applied to localize regions of nuclei. Then, chain splitting model (CSM) containing flexible mathematical morphology and curvature scale space corner detection method was applied to split overlapped cells for better accuracy and robustness...
August 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29744101/metastatic-renal-cell-carcinoma-presenting-with-melena
#11
Ashwini Sadhale, Abimbola Adike, Dora Lam-Himlin
Renal cell carcinoma is a highly malignant neoplasm. Metastasis to the pancreas and gastrointestinal tract is rare. In this case report, we show images of metastatic renal cell carcinoma to the upper gastrointestinal tract in a patient who presented with melena.
May 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29740111/tumor-heterogeneity-of-pancreas-head-cancer-assessed-by-ct-texture-analysis-association-with-survival-outcomes-after-curative-resection
#12
Gabin Yun, Young Hoon Kim, Yoon Jin Lee, Bohyoung Kim, Jin-Hyeok Hwang, Dong Joon Choi
The value of image based texture features as a powerful method to predict prognosis and assist clinical management in cancer patients has been established recently. However, texture analysis using histograms and grey-level co-occurrence matrix in pancreas cancer patients has rarely been reported. We aimed to analyze the association of survival outcomes with texture features in pancreas head cancer patients. Eighty-eight pancreas head cancer patients who underwent preoperative CT images followed by curative resection were included...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29738349/a-pilot-study-of-pancreatic-islet-amyloid-pet-imaging-with-18f-fddnp
#13
Zhi Lu, Jinghui Xie, Ran Yan, Zilin Yu, Zhigang Sun, Fei Yu, Xiaoyan Gong, Hongbo Feng, Jing Lu, Yanjun Zhang
OBJECTIVES: Pancreatic islet amyloid deposition occurs before β-cell damage in type 2 diabetes mellitus patients. The islet and Alzheimer's disease β-amyloid shares similar secondary structures. The Alzheimer's disease β-amyloid targeting tracer [F]FDDNP could be used to image pancreatic islet amyloid with PET. PATIENTS AND METHODS: Consecutive pancreatic tissue sections from a 69-year-old male type 2 diabetes mellitus patient were stained by hematoxylin and eosin, anti-amylin antibody, Congo Red, periodic acid-Schiff, and [F]FDDNP reference compound, respectively...
May 5, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29736662/serous-pancreatic-cystadenoma-with-compression-of-wirsung-s-duct
#14
Enio Campos Amico, José Roberto Alves, Adriano de Araújo Lima Liguori, Rogério Lacerda Sousa
Serous cystadenoma of the pancreas is a common cystic neoplasm typically of benign evolution that rarely communicates with the pancreatic ductal system. We present several images originating from two cases of serous cystadenoma of the pancreas which led to compression and dilatation of Wirsung's duct. These cases suggest that when the diagnosis of pancreatic microcystic lesion is detected, associated, or not associated with a central fibrous scar and a low carcinoembryonic antigen level in the aspirated fluid, the presence of dilatation of Wirsung's duct does not exclude the diagnosis of serous pancreatic cystadenoma...
May 7, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29732356/clinical-significance-of-pancreatic-intraepithelial-neoplasia-in-resectable-pancreatic-cancer-on-survivals
#15
Da-Young Yu, Young-Dong Yu, Wan-Bae Kim, Hyung-Joon Han, Sae-Byul Choi, Dong-Sik Kim, Sang-Yong Choi, Joo-Young Kim, Hyeyoon Chang, Baek-Hui Kim
Purpose: Noninvasive precursor lesions for pancreatic adenocarcinoma include pancreatic intraepithelial neoplasia (PanIN), intraductal papillary mucinous neoplasm, and mucinous cystic neoplasm. PanIN is often found synchronously adjacent to resected pancreatic ductal adenocarcinoma (PDAC) tumors. However, its prognostic significance on outcome after PDAC resection is unknown. The purpose of the current study was to determine if the presence of PanIN has a prognostic or predictive effect on survival after resection for PDAC with curative intent...
May 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29730906/predictors-of-malignancy-in-pure-branch-duct-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-without-enhanced-mural-nodules-on-ct-imaging-a-nationwide-multicenter-study
#16
Tae Hyeon Kim, Young Sik Woo, Hyung Ku Chon, Jin Hyeok Hwang, Kyo Sang Yoo, Woo Jin Lee, Kwang Hyuck Lee, Jong Kyun Lee, Seok Ho Dong, Chang Hwan Park, Eun Taek Park, Jong Ho Moon, Ho Gak Kim, Kwang Bum Cho, Hong Ja Kim, Seung Ok Lee, Young Koog Cheon, Jeong-Mi Lee, Jin Woo Park, Myung-Hwan Kim
Background/Aim: Enhanced mural nodules, which can be visualized using computed tomography (CT), constitute high-risk stigmata in branch-duct intraductal papillary mucinous neoplasms (BD-IPMNs). Conversely, the absence of enhanced mural nodules on preoperative imaging does not exclude malignant risk. The present study aimed to investigate other morphological features as predictors of malignancy in "pure" BD-IPMNs without enhanced mural nodules on CT. Method: This retrospective study included 180 patients with surgically confirmed "pure" BD-IPMNs of the pancreas and no enhanced mural nodules on preoperative CT...
May 4, 2018: Gut and Liver
https://www.readbyqxmd.com/read/29729951/pancreatic-stiffness-response-to-an-oral-glucose-load-in-obese-adults-measured-by-magnetic-resonance-elastography
#17
Ruoyun Ji, Jiahui Li, Ziying Yin, Yanqing Liu, Lizhuo Cang, Min Wang, Yu Shi
BACKGROUND: To test the feasibility of magnetic resonance elastography (MRE) for assessing changes in pancreatic stiffness of obese adults administered an oral glucose load. METHODS: MRE scans were performed on 21 asymptomatic obese volunteers (BMI ≥ 27 kg/m2 ) before and after receiving a 75-g oral glucose load, and repeated in 7 days without a glucose load. Shear waves at 40 and 60 Hz were introduced into the upper abdomen by a pneumatic drum driver (diameter of 12 cm)...
May 3, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29725766/the-anatomical-configuration-of-the-splenic-artery-influences-suprapancreatic-lymph-node-dissection-in-laparoscopic-gastrectomy-analysis-using-a-3d-volume-rendering-program
#18
Chunchao Zhu, Seong-Ho Kong, Tae-Han Kim, Shin-Hoo Park, Rene Ronson G Ang, Michele Diana, Luc Soler, Yun-Suhk Suh, Hyuk-Joon Lee, Jacques Marescaux, Hui Cao, Han-Kwang Yang
BACKGROUND: The aim of this study is to categorize splenic artery and vein configurations, and examine their influence on suprapancreatic lymph node (LN) dissection in laparoscopic gastrectomy. METHODS: Digital Imaging and Communications in Medicine images from 169 advanced cancer patients who underwent laparoscopic gastrectomy with D2 dissection were used to reconstruct perigastric vessels in 3D using a volume rendering program (VP Planning® ). Splenic artery and vein configuration were classified depending on the relative position of their lowest part in regard to the pancreas...
May 3, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29725534/middle-segment-pancreatectomy-for-a-solid-serous-cystadenoma-diagnosed-by-mrcp-and-review-of-the-literature-a-case-report
#19
Yuichiro Okumura, Takehiro Noda, Hidetoshi Eguchi, Yoshifumi Iwagami, Daisaku Yamada, Tadafumi Asaoka, Koichi Kawamoto, Kunihito Gotoh, Shogo Kobayashi, Koji Umeshita, Yasuji Hashimoto, Yutaka Takeda, Masahiro Tanemura, Minoru Shigekawa, Eiichi Morii, Tetsuo Takehara, Masaki Mori, Yuichiro Doki
Solid serous cystadenoma of the pancreas is the rarest subtype of serous cystadenoma. Cystic structures are difficult to recognize by imaging studies. In the clinical setting, it is crucial to discriminate a solid serious cystadenoma from other solid pancreatic tumors. The present study reported a case of solid serous cystadenoma in which the magnetic resonance cholangiopancreatography (MRCP) findings were useful for diagnosis and decision-making regarding the surgical strategy, with a review of the previous reports of solid serous cystadenoma...
May 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29722271/endoscopic-ultrasound-eus-guided-fine-needle-biopsy-fnb-with-the-procore%C3%A2-needle-provides-inadequate-material-for-the-histological-diagnosis-of-early-chronic-pancreatitis
#20
Julio Iglesias García, José Lariño-Noia, Ihab Abdulkader Nallib, Björn Lindkvist, J Enrique Domínguez-Muñoz
BACKGROUND: diagnosis of early chronic pancreatitis (CP) is hampered due to the low accuracy of current imaging techniques and the absence of methods for histological confirmation. We aimed to evaluate the efficacy of endoscopic ultrasound-guided fine needle biopsy (EUS-FNB) for the histological diagnosis of early CP. METHODS: a prospective, cross-sectional, single-center study was designed. Consecutive patients referred for EUS with a clinical suspicion of CP were evaluated for inclusion into the study...
May 3, 2018: Revista Española de Enfermedades Digestivas
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