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https://www.readbyqxmd.com/read/29786487/diffusion-weighted-mri-is-superior-to-pet-ct-in-predicting-survival-of-patients-undergoing-90-y-radioembolization-of-hepatic-metastases
#1
Alexandra Barabasch, Alexander Heinzel, Philipp Bruners, Nils A Kraemer, Christiane K Kuhl
Purpose To determine the relationship between diffusion-weighted (DW) liver MR images obtained 4-6 weeks after lobar yttrium 90 (90 Y) treatment and overall survival in comparison with PET/CT or established oncologic factors known to affect survival. Materials and Methods The institutional review board approved this prospective intraindividual comparative study in 36 consecutive patients (25 women) with liver-dominant metastases (20 colorectal, 14 breast, two other) (mean age, 60 years ± 10 [standard deviation]) who underwent fluorine 18 (18 F) fluorodeoxyglucose (FDG) PET/CT and DW MRI before and 4-6 weeks after 90 Y radioembolization...
May 21, 2018: Radiology
https://www.readbyqxmd.com/read/29781871/early-onset-of-diffuse-melanosis-cutis-under-pembrolizumab-therapy-illustrates-the-limitations-of-anti-pd-1-checkpoint-inhibitors
#2
Alexander Thiem, Patrick Schummer, Simon Ueberschaar, Andreas Kerstan, Hermann Kneitz, David Schrama, Silke Appenzeller, Svenja Meierjohann, Bastian Schilling, Matthias Goebeler, Anja Gesierich
Anti-PD-1 targeted immunotherapies have revolutionized the treatment of advanced melanoma and other tumor entities, and long disease-free intervals have been reported in responding patients. However, a considerable number of patients still progress rapidly after the start of anti-PD-1 antibodies. Here, we document two patients, 78 and 85-year old, who suffered from advanced BRAF-V600 wild-type melanoma and received pembrolizumab 2 mg/kg every 3 weeks as the first systemic treatment. After only one, respectively, two infusions of pembrolizumab, both patients developed melanuria and diffuse melanosis cutis (DMC) on sun-exposed areas of their skin...
May 17, 2018: Melanoma Research
https://www.readbyqxmd.com/read/29757146/imaging-of-pathology-involving-the-space-around-the-hepatic-veins-perivenous-pattern
#3
Ali Devrim Karaosmanoğlu, Mehmet Ruhi Onur, Mustafa Nasuh Özmen, Deniz Akata, Muşturay Karçaaltıncaba
We aimed to illustrate diseases involving the potential space around the hepatic veins. Perivenous halo sign can be seen in patients with congestive heart failure or fluid overload. Perivenous involvement can be observed in patients with alcoholic fatty liver disease, which can be focal or diffuse. Metastasis and primary liver tumor spread can also involve this space most likely due to involvement of lymphatics around hepatic veins.
March 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29755847/-18-f-fdg-pet-ct-findings-in-hepatosplenic-gamma-delta-t-cell-lymphoma-case-reports-and-review-of-the-literature
#4
Michael W Cho, Bennett B Chin
Hepatosplenic Gamma Delta T cell lymphoma (γδHSTL) is a rare, highly aggressive, and rapidly lethal T cell lymphoma which manifests 18 F-FDG PET/CT findings that can mimic benign conditions. Patients with γδHSTL present with unexplained symptoms of a hematologic malignancy like the B symptoms of lymphoma including weight loss, fevers, and night sweats, as well as, splenomegaly and hepatomegaly. Thrombocytopenia, anemia, or neutropenia are also common due to spleen, liver and bone marrow involvement. The peripheral blood, however, typically does not show abnormal T cells...
2018: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29714035/myocardial-extracellular-volume-quantified-by-magnetic-resonance-is-increased-in-cirrhosis-and-related-to-poor-outcome
#5
Signe Wiese, Jens Hove, Silje Mo, Rajeshwar P Mookerjee, Claus L Petersen, Marianne K Vester-Andersen, Naja D Mygind, Jens P Goetze, Andreas Kjaer, Flemming Bendtsen, Søren Møller
BACKGROUND & AIMS: The underlying pathogenesis of cirrhotic cardiomyopathy is unclear. Structural myocardial changes including diffuse fibrosis may be involved and can be accurately assessed by cardiac MRI (CMR) with quantification of the extracellular volume (ECV).This is the first application of this technique in patients with cirrhosis. We aimed to investigate the presence of diffuse myocardial fibrosis and to determine the relation to disease severity, cardiac function, and outcome...
April 30, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29705972/p-tau-and-subunit-c-mitochondrial-atp-synthase-accumulation-in-the-central-nervous-system-of-a-woman-with-hurler-scheie-syndrome-treated-with-enzyme-replacement-therapy-for-12-years
#6
Hiroshi Kobayashi, Masamichi Ariga, Yohei Sato, Masako Fujiwara, Nei Fukasawa, Takahiro Fukuda, Hiroyuki Takahashi, Masahiro Ikegami, Motomichi Kosuga, Torayuki Okuyama, Yoshikatsu Eto, Hiroyuki Ida
We report an autopsy case of a woman with mucopolysaccharidosis type I (MPS I) Hurler-Scheie syndrome who was treated with enzyme replacement therapy (ERT) for 12 years. This was the first case of MPS I treated with ERT in Japan. Pathological analysis showed no glycosaminoglycan accumulation in the liver and spleen as a result of long-term ERT, although severe aortic stenosis, diffuse intimal hyperplasia of the coronary artery, and fibrous hypertrophy of the endocardium were observed. Additionally, we detected subunit c mitochondrial ATP synthase (SCMAS) accumulation and mild tauopathy (hyperphosphorylated tau or p-tau, both 3-repeat and 4-repeat tau accumulation) in the same area of the cerebral limbic system and central gray matter of the mid brain and pons...
April 29, 2018: JIMD Reports
https://www.readbyqxmd.com/read/29698884/primary-intrahepatic-mesotheliomas-a-case-presentation-and-literature-review
#7
Hishaam Ismael, Steven Cox
INTRODUCTION: Primary Intrahepatic mesotheliomas are malignant tumors arising from the mesothelial cell layer covering Glisson's capsule of the liver. They are exceedingly rare with only fourteen cases reported in the literature. They have nonspecific signs and symptoms and need a high index of suspicion and an extensive workup prior to surgery. Surgery remains the mainstay of treatment. PRESENTATION OF CASE: 48 year old male presented with a 3 months history of abdominal pain, productive cough, anemia and weight loss...
April 16, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29698422/prognostic-value-of-diffuse-splenic-fdg-uptake-on-pet-ct-in-patients-with-gastric-cancer
#8
Hai-Jeon Yoon, Bom Sahn Kim, Chang Mo Moon, Jang Yoo, Ko Eun Lee, Yemi Kim
BACKGROUND: This study investigated the prognostic value of diffuse splenic uptake on F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) in gastric cancer (GC) patients. METHODS: A total of 134 pathology confirmed GC patients who underwent PET/CT for staging work-ups were enrolled. The maximal standardized uptake value (SUVmax) of primary tumor (Tmax), spleen (Smax), and spleen to liver uptake ratio (SLR) were measured. The prognostic value of PET-measured parameters in GC patients for predicting recurrence-free survival (RFS) and overall survival (OS) were assessed...
2018: PloS One
https://www.readbyqxmd.com/read/29687908/hepatopulmonary-disorders-gas-exchange-and-vascular-manifestations-in-chronic-liver-disease
#9
Robert Rodríguez-Roisin, Michael J Krowka, Alvar Agustí
This review concentrates on the determinants of gas exchange abnormalities in liver-induced pulmonary vascular disorders, more specifically in the hepatopulmonary syndrome. Increased alveolar-arterial O2 difference, with or without different levels of arterial hypoxemia, and reduced diffusing capacity represent the most characteristic gas exchange disturbances in the absence of cardiac and pulmonary comorbidities. Pulmonary gas exchange abnormalities in the hepatopulmonary syndrome are unique encompassing all three pulmonary factors determining arterial PO2 , that is, ventilation-perfusion imbalance, increased intrapulmonary shunt and oxygen diffusion limitation that, combined, interplay with two relevant nonpulmonary determinants, that is, increased total ventilation and high cardiac output...
March 25, 2018: Comprehensive Physiology
https://www.readbyqxmd.com/read/29643536/-genetic-diagnosis-of-caroli-syndrome-with-autosomal-recessive-polycystic-kidney-disease-a-case-report-and-literature-review
#10
X Y Yang, L P Zhu, X Q Liu, C Y Zhang, Y Yao, Y Wu
This case report is about one genetically specified diagnosed infant case of Caroli syndrome with autosomal recessive polycystic kidney disease (ARPKD) in China. The patient in this case report was an eight-month infant boy with an atypical onset and the main clinical manifestation was non-symptomatic enlargement of the liver and kidneys. The imaging study demonstrated a diffused cystic dilatation of intrahepatic bile ducts as well as polycystic changes in bilateral kidneys. The basic blood biochemical tests indicated a normal hepatorenal function...
April 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29629807/clinical-feasibility-of-mr-elastography-in-patients-with-biliary-obstruction
#11
Dong Kyu Kim, Jin Young Choi, Mi-Suk Park, Myeong-Jin Kim, Yong Eun Chung
OBJECTIVE: The purpose of this study is to evaluate the clinical effect of liver stiffness measured using MR elastography (MRE) in patients with cholestasis due to biliary obstruction. MATERIALS AND METHODS: In this retrospective study, 69 consecutive patients with no history of diffuse liver disease who underwent pancreaticobiliary imaging with MRE were included. Quantitative MRI parameters (i.e., liver stiffness, apparent diffusion coefficient, R2*, and proton density fat fraction) and laboratory results (i...
April 9, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29615085/expression-patterns-of-stat3-erk-and-estrogen-receptor-%C3%AE-are-associated-with-development-and-histologic-severity-of-hepatic-steatosis-a-retrospective-study
#12
Euno Choi, Won Kim, Sae Kyung Joo, Sunyoung Park, Jeong Hwan Park, Yun Kyung Kang, So-Young Jin, Mee Soo Chang
BACKGROUND: Hepatic steatosis renders hepatocytes vulnerable to injury, resulting in the progression of preexisting liver disease. Previous animal and cell culture studies implicated mammalian target of rapamycin (mTOR), signal transducer and activator of transcription-3 (STAT3), extracellular signal-regulated kinase (ERK) and estrogen-receptor α in the pathogenesis of hepatic steatosis and disease progression. However, to date there have been few studies performed using human liver tissue to study hepatic steatosis...
April 3, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/29615025/first-molecular-detection-and-characterization-of-marek-s-disease-virus-in-red-crowned-cranes-grus-japonensis-a-case-report
#13
Xue Lian, Xin Ming, Jiarong Xu, Wangkun Cheng, Xunhai Zhang, Hongjun Chen, Chan Ding, Yong-Sam Jung, Yingjuan Qian
BACKGROUND: Marek's disease virus (MDV) resides in the genus Mardivirus in the family Herpesviridae. MDV is a highly contagious virus that can cause neurological lesions, lymphocytic proliferation, immune suppression, and death in avian species, including Galliformes (chickens, quails, partridges, and pheasants), Strigiformes (owls), Anseriformes (ducks, geese, and swans), and Falconiformes (kestrels). CASE PRESENTATION: In 2015, two red-crowned cranes died in Nanjing (Jiangsu, China)...
April 3, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29581922/a-lymphoma-almost-overlooked
#14
Jeremy Lorber, Martina Zalom
A 50-year-old female with a prolonged history of untreated human immunodeficiency virus (HIV) presented with a large vaginal mass. During workup, the mass was found to be vaginal squamous cell carcinoma. Imaging suggested stage IV disease, but a biopsy of liver lesions demonstrated synchronous diffuse large B-cell lymphoma. Her treatment course was notable for complete remission of her lymphoma with lymphoma-directed chemotherapy and complete clinical response of her squamous cell carcinoma to lymphoma-directed therapy...
January 24, 2018: Curēus
https://www.readbyqxmd.com/read/29571555/diffuse-liver-diseases-role-of-imaging
#15
Adele Taibbi, Dario Picone, Massimo Midiri, Ludovico La Grutta, Tommaso Vincenzo Bartolotta
Nowadays, the most common imaging techniques allow to study focal liver lesions with high diagnostic accuracy but a relatively recent emerging field of interest is represented by diffuse liver disease. They include a variegated series of storage and metabolic pathologies (ie, iron overload disorders and steatosis) requiring a precise diagnosis not always possible at imaging due to the overlapping of findings at conventional ultrasound, CT, or MR studies. In recent years, several imaging tecniques and specific softwares have been developed, especially for ultrasound and MR imaging, in order to identify different parameters useful in the noninvasive recognition and follow-up of these diffuse processes involving the liver...
April 2018: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/29563804/decreased-expression-of-lkb1-predicts-poor-prognosis-in-pancreatic-neuroendocrine-tumor-patients-undergoing-curative-resection
#16
Dezhi Li, Yu Zhou, Yanhui Liu, Ye Lin, Min Yu, Xin Lu, Bowen Huang, Zhonghai Sun, Zhixiang Jian, Baohua Hou
Background: Liver kinase B1 (LKB1) is a key regulatory protein of cellular metabolism, proliferation, and polarity. The present study aimed to characterize the expression pattern of LKB1 in pancreatic neuroendocrine tumors (pNETs) and evaluate the relationship between LKB1 expression and prognosis in pNETs. Patients and methods: We retrospectively analyzed the pathologic and clinical data of 71 pNET patients who underwent curative surgical resection in Guangdong General Hospital...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29556899/brain-core-temperature-of-patients-before-and-after-orthotopic-liver-transplantation-assessed-by-dwi-thermometry
#17
Gianvincenzo Sparacia, Roberto Cannella, Vincenzina Lo Re, Giuseppe Mamone, Koji Sakai, Kei Yamada, Roberto Miraglia
PURPOSE: To assess brain-core temperature of end-stage liver disease patients undergoing orthotopic liver transplantation (OLT) using a temperature measurement technique based on the apparent diffusion coefficient of the cerebrospinal fluid in the lateral ventricles. MATERIALS AND METHODS: The study group was composed of 19 patients with a model for end-stage liver disease (MELD) score of 23.7 who underwent MR imaging before and after OLT. MR imaging studies were performed with a 1...
March 19, 2018: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29549474/contributions-of-magnetic-resonance-imaging-to-gastroenterological-practice-mris-for-gis
#18
Christopher G Roth, Dina Halegoua-De Marzio, Flavius F Guglielmo
MRI has transformed from the theoretical, investigative realm to mainstream clinical medicine over the past four decades and has become a core component of the diagnostic toolbox in the practice of gastroenterology (GI). Its success is attributable to exquisite contrast and the ability to isolate specific proton species through the use of different pulse sequences (i.e., T1-weighted, T2-weighted, diffusion-weighted) and exploiting extracellular and hepatobiliary contrast agents. Consequently, MRI has gained preeminence in various GI clinical applications: liver and pancreatic lesion evaluation and detection, liver transplantation evaluation, pancreatitis evaluation, Crohn's disease evaluation (using MR enterography) rectal cancer staging and perianal fistula evaluation...
May 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29536563/systematic-review-with-meta-analysis-neuroimaging-in-hepatitis-c-chronic-infection
#19
REVIEW
G Oriolo, E Egmond, Z Mariño, M Cavero, R Navines, L Zamarrenho, R Solà, J Pujol, N Bargallo, X Forns, R Martin-Santos
BACKGROUND: Chronic hepatitis C is considered a systemic disease because of extra-hepatic manifestations. Neuroimaging has been employed in hepatitis C virus-infected patients to find in vivo evidence of central nervous system alterations. AIMS: Systematic review and meta-analysis of neuroimaging research in chronic hepatitis C treatment naive patients, or patients previously treated without sustained viral response, to study structural and functional brain impact of hepatitis C...
May 2018: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29534660/successful-orthotopic-liver-transplant-for-diffuse-biliary-papillomatosis-with-malignant-transformation-a-case-report-with-long-term-follow-up
#20
Daniele Ferraro, Giovanni Battista Levi Sandri, Giovanni Vennarecci, Roberto Santoro, Marco Colasanti, Roberto L Meniconi, Pasquale Lepiane, Giuseppe M Ettorre
In patients with biliary papillomatosis, complete resection of the biliary tree (that is, liver transplant along with duodenocephalo-pancreatectomy) is considered the only potential curative treatment, given its diffuse pattern and likelihood of malignant transformation. Nevertheless, such a combined surgical approach can increase patient morbidity and mortality and should be considered only when the distal part of the common bile duct is involved. Here, we avoided duodenocephalo-pancreatectomy in a patient with distal common bile duct free from disease; this approach did not negatively influence survival and appeared to be safer during liver transplant...
March 9, 2018: Experimental and Clinical Transplantation
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