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https://www.readbyqxmd.com/read/28922443/primary-hepatic-lymphoma-complicated-by-a-hepatic-inflammatory-pseudotumor-and-tumor-forming-pancreatitis
#1
Rena Kaneko, Hiroyuki Mitomi, Natsuko Nakazaki, Yuichiro Yano, Masazumi Ogawa, Yuzuru Sato
BACKGROUND: Hepatic inflammatory pseudotumor (IPT) is considered to be benign in biological behavior, and its malignant transformation is extremely rare. There has only been one published case of primary hepatic lymphoma complicated by hepatic IPT. CASE PRESENTATION: A 73-year-old man presented with obstructive jaundice and a pancreatic head mass. Histology of the mass revealed chronic pancreatitis with lymphoid follicle formation, leading to a diagnosis of a suspicion of follicular pancreatitis...
September 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28922375/elevated-igg4-serum-levels-in-patients-with-cystic-fibrosis
#2
Axelle Clerc, Quitterie Reynaud, Stéphane Durupt, Colette Chapuis-Cellier, Raphaële Nové-Josserand, Isabelle Durieu, Jean Christophe Lega
OBJECTIVE: Serum immunoglobulin (Ig) G4 elevation has been associated with several pathological conditions other than IgG4-related disease (IgG4-RD). In cystic fibrosis (CF), an elevation of specific IgG4 has been associated with colonization and infection by Pseudomonas aeruginosa. IgG4 elevation may be a marker of chronic infection or inflammatory stimulation. The aim of this study was to explore the prevalence of elevated IgG4 levels in CF and its correlation with the major clinical and microbiological features found in CF patients...
2017: PloS One
https://www.readbyqxmd.com/read/28922106/igg4-related-disease-a-patient-with-multiple-organ-involvement
#3
Miroslav Průcha, Lenka Sedláčková
IgG4-related diseases represent a heterogeneous group of conditions characterised by elevated serum IgG4 levels and fibrotic or sclerosing changes in the affected organs or systems accompanied by IgG4-positive plasma cells. A disease associated with IgG4 may affect virtually any organ - salivary glands, periorbital tissue, kidneys, lungs, meninges, aorta, prostate, pericardium or skin. Histopathological findings are uniform, characterised by a major lymphoplasmocytic infiltrate and the presence of IgG4-producing plasma cells, irrespective of the affected site...
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28918831/a-comparative-analysis-of-serum-igg4-levels-in-patients-with-igg4-related-disease-and-other-disorders
#4
Li Wang, Xinmin Chu, Yan Ma, Min Zhang, Xue Wang, Li Jin, Zhen Tan, Xiangpei Li, Xiaomei Li
OBJECTIVE: Elevated serum IgG4 levels are an important hallmark for diagnosing IgG4-related disease (IgG4-RD) but can also be found and reported in other diseases. The present study intended to compare the serum IgG4 levels in both IgG4-RD and non-IgG4-RD and determine the serum IgG4 levels in patients with IgG4-RD before and after glucocorticoid therapy. METHODS: The study included 323 patients from Anhui Medical University Affiliated Provincial Hospital (China) and was conducted from July 2014-January 2016...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28918828/crescentic-glomerulonephritis-with-immunoglobulin-g4-related-disease
#5
Inbar Raber, Asiri Ediriwickrema, John Higgins, Neeraja Kambham, Alan C Pao
Immunoglobulin G4 (IgG4)-related disease is an uncommon autoimmune disease that affects multiple organ systems. Renal involvement typically presents as tubulointerstitial nephritis and less commonly as membranous glomerulonephritis. In this case report, we discuss a 68-year-old patient who presented with rapidly progressive glomerulonephritis. His renal biopsy revealed a membranoproliferative pattern of injury with fibrocellular crescents and extensive infiltration of the tubulointerstitium with IgG4-positive plasma cells...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28918513/imaging-findings-of-primary-immunoglobulin-g4-related-cervical-lymphadenopathy
#6
Masaya Kawaguchi, Hiroki Kato, Yusuke Kito, Keisuke Mizuta, Mitsuhiro Aoki, Keizo Kato, Satoshi Goshima, Masayuki Matsuo
PURPOSE: The purpose of the present study was to assess imaging findings of primary immunoglobulin G4 (IgG4)-related cervical lymphadenopathy. METHODS: Five consecutive patients with clinically, serologically, and histopathologically confirmed primary IgG4-related cervical lymphadenopathy without any other organ involvement were included. All patients underwent contrast-enhanced computed tomography (CT), and four underwent (18)F-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT...
September 16, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28916617/nivolumab-exposure-response-analyses-of-efficacy-and-safety-in-previously-treated-squamous-or-nonsquamous-non-small-cell-lung-cancer
#7
Yan Feng, Xiaoning Wang, Gaurav Bajaj, Shruti Agrawal, Akintunde Bello, Brian Lestini, Friedrich Graf Finckenstein, Jong-Soon Park, Amit Roy
Purpose: Nivolumab is a fully human IgG4 monoclonal antiprogrammed death-1 antibody with demonstrated efficacy, including durable responses and prolonged survival, in patients with previously treated, advanced non-small cell lung cancer (NSCLC). Exposure-response (E-R) analyses for efficacy and safety were conducted to inform the benefit-risk assessment of nivolumab in this patient population.Experimental Design: The analyses used clinical trial data from patients with squamous (n = 293) or nonsquamous (n = 354) NSCLC from four clinical trials who received nivolumab doses of 1 to 10 mg/kg every 2 weeks...
September 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28916523/cutting-edge-a-critical-role-of-lesional-t-follicular-helper-cells-in-the-pathogenesis-of-igg4-related-disease
#8
Ryuta Kamekura, Kenichi Takano, Motohisa Yamamoto, Koji Kawata, Katsunori Shigehara, Sumito Jitsukawa, Tomonori Nagaya, Fumie Ito, Akinori Sato, Noriko Ogasawara, Chieko Tsubomatsu, Hiroki Takahashi, Hiroshi Nakase, Tetsuo Himi, Shingo Ichimiya
IgG4-related disease (IgG4-RD) is a newly recognized systemic chronic fibroinflammatory disease. However, the pathogenesis of IgG4-RD remains unknown. To determine the pathophysiologic features of IgG4-RD, we examined T follicular helper (Tfh) cells in lesions and blood from patients with IgG4-RD. Patients with IgG4-related dacryoadenitis and sialadenitis (IgG4-DS) showed increased infiltration of Tfh cells highly expressing programmed death 1 and ICOS in submandibular glands. Tfh cells from IgG4-DS submandibular glands had higher expression of B cell lymphoma 6 and a greater capacity to help B cells produce IgG4 than did tonsillar Tfh cells...
September 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28915275/long-term-efficacy-and-safety-of-rituximab-in-igg4-related-disease-data-from-a-french-nationwide-study-of-thirty-three-patients
#9
Mikael Ebbo, Aurélie Grados, Maxime Samson, Matthieu Groh, Anderson Loundou, Aude Rigolet, Benjamin Terrier, Constance Guillaud, Clarisse Carra-Dallière, Frédéric Renou, Agnieszka Pozdzik, Pierre Labauge, Sylvain Palat, Jean-Marie Berthelot, Jean-Loup Pennaforte, Alain Wynckel, Céline Lebas, Noémie Le Gouellec, Thomas Quémeneur, Karine Dahan, Franck Carbonnel, Gaëlle Leroux, Antoinette Perlat, Alexis Mathian, Patrice Cacoub, Eric Hachulla, Nathalie Costedoat-Chalumeau, Jean-Robert Harlé, Nicolas Schleinitz
OBJECTIVES: To assess efficacy and safety of rituximab (RTX) as induction therapy, maintenance of remission and treatment of relapses in a cohort of IgG4-related disease (IgG4-RD) patients. METHODS: Nationwide retrospective multicenter study of IgG4-RD patients treated with at least one course of RTX. Clinical, biological and radiological response, relapse rate and drug tolerance were analyzed. Kaplan-Meier curves were plotted and risk factors for relapse studied with a Cox regression model...
2017: PloS One
https://www.readbyqxmd.com/read/28912998/igg4-related-kidney-disease-report-of-a-case-presenting-as-a-renal-mass
#10
Daniele Bianchi, Luca Topazio, Gabriele Gaziev, Valerio Iacovelli, Pierluigi Bove, Alessandro Mauriello, Enrico Finazzi Agrò
IgG4-related disease (IgG4-RD) is a nosological entity defined as a chronic immune-mediated fibro-inflammatory condition characterized by a tendency to form tumefactive, tissue-destructive lesions or by organ failure. Urologic involvement in IgG4-RD has been described in some short series of patients and in isolated case reports, most often involving the kidneys in so-called IgG4-related kidney disease (IgG4-RKD). The disease can occasionally mimic malignancies and is at risk of being misdiagnosed due to its rarity...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28912097/igg-subclasses-quantitation-analytical-performance-of-the-binding-site-spaplus%C3%A2-human-assay-and-comparison-with-siemens-bnii%C3%A2-assay
#11
Ana Sarnago, Rosa M Pascual, María J Moreno, Begoña Laíz, Oscar Fuster
OBJECTIVES: Accurate evaluation of analyzers is highly recommended before these devices are broadly introduced for routine testing. Concerning quantification of IgG subclasses (IgGSc), standardization has not yet been reached and thus different assays might lead to different results. Here we report the analytical performances of The Binding Site (TBS) SPAPLUS® human IgGSc assay and the concordance with the Siemens BNII® human IgGSc assay. DESIGN AND METHODS: We evaluated precision, LoB, LoD and linearity of TBS SPAPLUS® human IgGSc immunoassay...
September 11, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28911971/the-effects-of-house-dust-mite-sublingual-immunotherapy-slit-tablet-effects-on-immunological-biomarkers-and-nasal-allergen-challenge-symptoms
#12
Natasha C Gunawardana, Qing Zhao, Leonidas N Carayannopoulos, Kuenhi Tsai, Vladislav A Malkov, Diana Selverian, Graham Clarke, Tim Mant, Brent Butts, Kaare Lund, Trevor T Hansel, Hendrik Nolte
SQ HDM SLIT-tablet significantly increased serum HDM-specific IgG4 and IgE blocking factor, and significantly decreased early phase nasal symptoms after nasal allergen challenge. No significant effects on cytokines or gene expression in nasal mucosa were observed.
September 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28910817/the-lung-in-dysregulated-states-of-humoral-immunity
#13
Yurdagül Uzunhan, Florence Jeny, Marianne Kambouchner, Morgane Didier, Diane Bouvry, Hilario Nunes, Jean-François Bernaudin, Dominique Valeyre
In common variable immunodeficiency, lung manifestations are related to different mechanisms: recurrent pneumonias due to encapsulated bacteria responsible for diffuse bronchiectasis, diffuse infiltrative pneumonia with various patterns, and lymphomas, mostly B cell extranodal non-Hodgkin type. The diagnosis relies on significant serum Ig deficiency and the exclusion of any primary or secondary cause. Histopathology may be needed. Immunoglobulin (IgG) replacement is crucial to prevent infections and bronchiectasis...
September 15, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28905689/igg4-related-cholangiopathy-and-its-mimickers-a-case-report-and-review-highlighting-the-importance-of-early-diagnosis
#14
Kyle Geary, Cemal Yazici, Anita Seibold, Grace Guzman
Immunoglobulin (Ig) G4 (IgG4)-related disease is a recently described clinical entity that can involve multiple organs. It is an autoimmune disorder characterized by a dense lymphoplasmacytic infiltrate, storiform fibrosis, and obliterative phlebitis. A key distinguishing factor is its dramatic response to steroid therapy. Although best described in cases of autoimmune pancreatitis, IgG4-related disease has also been implicated in patients with cholangitis and is now commonly referred to as IgG4-related cholangiopathy...
September 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28898148/igg4-related-disease-as-the-differential-diagnosis-of-hypophysitis
#15
Oscar Mp Jolobe
No abstract text is available yet for this article.
September 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28894055/-igg4-related-periaortitis-manifested-as-contained-rupture-of-penetrating-atherosclerotic-ulcer
#16
Takeshi Someya, Shogo Sakurai, Toshizumi Shirai
We report a case of IgG4-related periaortitis of the descending aorta manifested as a contained rupture of penetrating atherosclerotic ulcer(PAU). A 67-year-old male was admitted to our hospital complaining about chest pain. Computed tomography(CT) and magnetic resonance imaging revealed PAU with extravasation of the descending aorta and thickening of surrounding tissues. Fluorodeoxyglucose-positron emission tomography (FDG-PET) CT demonstrated abnormal accumulation of FDG at the thickening sites, and serum IgG4 value was abnormally high...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28892729/immune-mechanisms-of-food-allergy-and-its-prevention-by-early-intervention
#17
REVIEW
Victor Turcanu, Helen A Brough, George Du Toit, Ru-Xin Foong, Tom Marrs, Alexandra F Santos, Gideon Lack
The environmental factors driving the increase in food allergies are unclear and possibly involve dual exposure to allergens, microbiome-driven effects or other mechanisms. Until they can be better understood, early intervention aiming at establishing oral tolerance provides an effective way to decrease the window-of-risk when children may develop allergic sensitisation to foods due to the absence of a protective immune response. Thus, the recent LEAP (Learning Early About Peanut allergy) and LEAP-On studies achieved a high level of peanut allergy prevention by early introduction of peanuts in the infants diet and conveyed more information regarding the evolution of IgE and IgG4 antibody responses to food antigens over time...
September 8, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28886329/a-case-of-igg4-related-retroperitoneal-fibrosis-with-multiple-involvement
#18
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/28882661/igg4-isolated-retroperitoneal-fibrosis-and-aneurysmal-periaortitis
#19
Catalina Sanchez-Alvarez, Andrew W Bowman, David M Menke, Benjamin Wang
No abstract text is available yet for this article.
September 4, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28881885/igg4-related-disease-involving-the-esophagus-a-clinicopathological-study
#20
I Obiorah, A Hussain, C Palese, N Azumi, S Benjamin, M Ozdemirli
Immunoglobulin G4 (IgG4)-related disease is a recently coined systemic disease characterized by specific histopathologic findings of an intense lymphoplasmacytic infiltrate, storiform fibrosis, and obliterative phlebitis in the presence of predominant IgG4-positive plasma cells. Although IgG4-related disease has been described in many organs, involvement of the esophagus is very rare. In this study, we describe the clinicopathologic characteristics of eight patients with IgG4-related esophagitis. We evaluated chronic esophagitis specimens with lymphoplasmacytic infiltrate obtained over the past 6 years (from January 2011 to February 2017) using a chart review, pathologic examination, and IgG4 immunohistochemical staining...
December 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
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