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Lymphoproliferative

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https://www.readbyqxmd.com/read/28924466/primary-cutaneous-cd4-positive-small-medium-sized-pleomorphic-t-cell-lymphoma-following-heart-transplantation
#1
B Shakerian, N Razavi, M H Mandegar
Post-transplantation cutaneous lymphoproliferative diseases (PTCLD) are rare, with 29 cases have so far been reported in the literature-only 4 cases underwent cardiac transplantation. Herein, we report on, to the best of our knowledge, the first case in the English literature of primary cutaneous CD4-positive small/medium-sized pleomorphic T-cell lymphoma in a cardiac transplant recipient.
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28924106/intravenous-immunoglobulin-monotherapy-for-granulomatous-lymphocytic-interstitial-lung-disease-in-common-variable-immunodeficiency
#2
Mizue Hasegawa, Fumikazu Sakai, Asako Okabayashi, Akitoshi Sato, Naoko Yokohori, Hideki Katsura, Chihiro Asano, Toshiko Kamata, Eitetsu Koh, Yasuo Sekine, Kenzo Hiroshima, Takashi Ogura, Tamiko Takemura
Common variable immunodeficiency (CVID) is a heterogeneous subset of immunodeficiency disorders. Recurrent bacterial infection is the main feature of CVID, but various non-infectious complications can occur. A 42-year-old woman presented with cough and abnormal chest X-ray shadows. Laboratory tests showed remarkable hypogammaglobulinemia. Computed tomography revealed multiple consolidation and nodules on the bilateral lung fields, systemic lymphadenopathy, and splenomegaly. A surgical lung biopsy specimen provided the final diagnosis of lymphoproliferative disease in CVID, which was grouped under the term granulomatous lymphocytic interstitial lung disease...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28922524/dynamic-contrast-enhanced-mri-in-orbital-lymphoproliferative-disorders-effects-of-region-of-interest-selection-methods-on-time-efficiency-measurement-reproducibility-and-diagnostic-ability
#3
Wen Qian, Xiao-Quan Xu, Hao Hu, Guo-Yi Su, Jiang-Fen Wu, Hai-Bin Shi, Fei-Yun Wu
BACKGROUND: Previous studies indicated that dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) could serve as a useful biomarker for differentiating malignant from benign orbital lymphoproliferative disorders (OLPDs). PURPOSE: To investigate the influence of different region of interest (ROI) selection methods on the measurements of DCE-MRI parameters, and their diagnostic ability in discriminating malignant from benign OLPDs. STUDY TYPE: Retrospective study...
September 18, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28916317/presence-of-human-herpesvirus-8-hhv-8-dna-sequences-in-patients-with-lymphoproliferative-diseases-and-chronic-blood-disorders
#4
Hossein Keyvani, Mohammad Hadi Karbalaie Niya, Maryam Esghaei, Farah Bokharaei Salim, Seyed Hamid Reza Monavari
OBJECTIVE: Human herpesvirus 8 (HHV-8) is the causative agent of Kaposi's sarcoma (KS), but it has also been associated with different hematologic malignancies, including plasmablastic lymphoma, Multicentric Castleman's disease (MCD), primary effusion lymphoma (PEL) and various atypical lymphoproliferative disorders. Patients with underlying lymphoproliferative diseases and chronic blood disorders who become infected with this virus are at risk for human malignancies. This small study reported the frequency of human herpesvirus -8 in 81 Iranian patients with lymphoproliferative disorders for estimation of possible factors affecting malignancy...
September 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28915342/transplantation-of-solid-organ-recipients-shedding-epstein-barr-virus-dna-pretransplant-a-prospective-study
#5
Priya S Verghese, David O Schmeling, Emma A Filtz, Jennifer M Grimm, Arthur J Matas, Henry H Balfour
Epstein-Barr virus (EBV) poses a significant threat to patient and graft survival posttransplant. We hypothesized that recipients who shed EBV at transplant had less immunologic control of the virus and hence were more likely to have active EBV infection and disease posttransplant. To test this hypothesis, we conducted a 5-year prospective study in primary solid organ transplant recipients. We measured EBV DNA in oral washes and blood samples by quantitative PCR before transplant and periodically thereafter for up to 4 years...
September 15, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28913319/rare-location-of-castleman-s-disease-in-the-temporal-region-a-case-report-involving-a-young-korean-woman-and-review-of-the-literature
#6
Wan Cheol Ryu, Moon Hyang Park, Hoon Kim, In Chang Koh, Kyu Nam Kim
Castleman's disease (CD) is an uncommon benign lymphoproliferative disorder of unknown etiology. Histopathologically, it is divided into three types: hyaline-vascular, plasma cellular, and multicentric CD. The mass usually presents asymptomatically; however, it can cause non-specific symptoms such as fever and fatigue. Although CD can be found wherever lymph nodes are present, 75% of cases are reported in the mediastinum, and occurrence in the head and neck is rare. Herein, we report a rare case of CD presenting as a superficial mass in the temporal region...
June 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28910817/the-lung-in-dysregulated-states-of-humoral-immunity
#7
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/28910419/il-10-mediated-signals-act-as-a-switch-for-lymphoproliferation-in-human-t-cell-leukemia-virus-type-1-infection-by-activating-the-stat3-and-irf4-pathways
#8
Leila Sawada, Yoshiko Nagano, Atsuhiko Hasegawa, Hikari Kanai, Kai Nogami, Sayaka Ito, Tomoo Sato, Yoshihisa Yamano, Yuetsu Tanaka, Takao Masuda, Mari Kannagi
Human T-cell leukemia virus type-1 (HTLV-1) causes two distinct diseases, adult T-cell leukemia/lymphoma (ATL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Since there are no disease-specific differences among HTLV-1 strains, the etiological mechanisms separating these respective lymphoproliferative and inflammatory diseases are not well understood. In this study, by using IL-2-dependent HTLV-1-infected T-cell lines (ILTs) established from patients with ATL and HAM/TSP, we demonstrate that the anti-inflammatory cytokine IL-10 and its downstream signals potentially act as a switch for proliferation in HTLV-1-infected cells...
September 14, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28910208/immunohistochemical-and-immunocytochemical-findings-associated-with-marek-s-disease-virus-in-naturally-infected-laying-hens
#9
O Yavuz, H Erer
We compared immunohistochemical (IHC) staining of tissue sections of liver, kidney, spleen, lung, proventriculus, sciatic nerve, bursa of Fabricius, brain, heart, intestine and skin; immunocytochemical (ICC) staining of peripheral blood samples and touch preparations of liver, spleen and kidney of laying hens naturally infected with Marek's disease (MD) virus. We used one hundred and fifty 5-17-week-old commercial hens. IHC and ICC staining were performed using polymer-based techniques. IHC staining exhibited mostly free immunopositive reactions in tumor cells and in the cytoplasm of the parenchymal cells of liver, kidney, spleen and bursa of Fabricius...
September 14, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28906499/-incomplete-poems-syndrome-with-multicentric-castleman-s-disease
#10
P González de la Aleja, M García-Navarro, R Sánchez-Rodríguez, J M Ramos-Rincón
Castleman's disease (CD) is an atypical lymphoproliferative disorder of unknown cause, characterized by non-clonal nodal hyperplastic growth. Two forms of clinical presentation are currently recognized, one localized and the other multicentric, and four histopathologic variants. It is characterized by generalized lymphadenopathy, hepatosplenomegaly, fever and night sweats. CD may present severe pancytopenia, multi-organ failure, lymphoma evolution and it can sometimes be associated with paraneoplastic syndromes such as POEMS syndrome...
September 14, 2017: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/28906028/graft-outcomes-following-diagnosis-of-posttransplant-lymphoproliferative-disease-in-pediatric-kidney-recipients-a-retrospective-study
#11
Nele K Kanzelmeyer, Britta Maecker-Kolhoff, Henriette Zierhut, Christian Lerch, Murielle Verboom, Dieter Haffner, Lars Pape
Data related to graft outcomes following posttransplant lymphoproliferative disease (PTLD) in pediatric kidney transplantation are scarce. Data were analyzed retrospectively from 12 children (8 boys) for three years after diagnosis of PTLD, with a loss of follow-up after 2 years in 2/12. In all cases, intensity of immunosuppressive therapy was reduced, with switch from calcineurin inhibitor to a mammalian target of rapamcyin (mTOR) inhibitor in 6 cases. Nine children were treated with 6 doses of rituximab according to the PED-PTLD-2005 protocol, with additional treatment in one child as per protocol...
September 14, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28905476/increased-frequency-of-cd45-negative-t-cells-t-zone-cells-in-older-golden-retriever-dogs
#12
K L Hughes, J D Labadie, J A Yoshimoto, J J Dossey, R C Burnett, A C Avery
T zone lymphoma (TZL) is characterized by the clonal expansion of T cells lacking expression of the pan-leukocyte antigen CD45 (TZ cells). A strong breed predisposition is observed in Golden retrievers. This study aimed to confirm aberrant CD45 mRNA expression and determine if Golden retrievers without clinical lymphoma have an increased frequency of circulating TZ cells. Gene expression analysis on confirmed TZL cases showed a significant decrease in CD45 expression compared to normal dogs. Peripheral blood samples from senior dogs, 242 Golden retrievers and 42 non-Golden retrievers, without evidence of lymphoproliferative disease were assessed for the presence of TZ cells by flow cytometry...
September 14, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28904129/t-cells-regulate-peripheral-naive-mature-b-cell-survival-by-cell-cell-contact-mediated-through-slamf6-and-sap
#13
Lihi Radomir, Sivan Cohen, Matthias P Kramer, Eszter Bakos, Hadas Lewinsky, Avital Barak, Ziv Porat, Richard Bucala, Polina Stepensky, Shirly Becker-Herman, Idit Shachar
The control of lymphoid homeostasis is the result of a very fine balance between lymphocyte production, proliferation, and apoptosis. In this study, we focused on the role of T cells in the maintenance/survival of the mature naive peripheral B cell population. We show that naive B and T cells interact via the signaling lymphocyte activation molecule (SLAM) family receptor, SLAMF6. This interaction induces cell type-specific signals in both cell types, mediated by the SLAM-associated protein (SAP) family of adaptors...
September 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28898881/performance-of-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-for-the-diagnosis-of-isolated-mediastinal-and-hilar-lymphadenopathy
#14
Chung-Chun Tyan, Tiago Machuca, Kasia Czarnecka, Hyang Mi Ko, Gilda da Cunha Santos, Scott L Boerner, Andrew Pierre, Marcelo Cypel, Tom Waddell, Gail Darling, Marc de Perrot, Shaf Keshavjee, William Geddie, Kazuhiro Yasufuku
BACKGROUND: Although many studies have assessed the diagnostic utility of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in the context of a specific disease, few studies have assessed the overall diagnostic yield, sensitivity, and negative predictive value in patients with isolated mediastinal and hilar lymphadenopathy (IMHL). OBJECTIVE: We evaluated the performance of EBUS-TBNA for diagnosing IMHL in a population with a high prevalence of concurrent or preexisting non-pulmonary malignancy...
September 13, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28898770/immunoglobulin-replacement-therapy-in-primary-and-secondary-antibody-deficiency-the-correct-clinical-approach
#15
REVIEW
Antonio Pecoraro, Ludovica Crescenzi, Francescopaolo Granata, Arturo Genovese, Giuseppe Spadaro
Immunoglobulin therapy is the administration of human polyvalent IgG and represents the most effective treatment to prevent recurrent infections in antibody deficiency patients. Primary antibody deficiency represents the main indication of immunoglobulin replacement therapy and includes a wide range of disorders characterized by impaired antibody production in response to pathogens and recurrent infections. However, not all primary antibody deficiency patients require immunoglobulin replacement. Indeed, immunoglobulin preparations are expensive and, once prescribed, usually result in lifelong therapy...
September 9, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28894563/hairy-b-cell-lymphoproliferative-disorder-and-its-differential-diagnosis-a-case-with-long-term-follow-up
#16
Kensuke Matsuda, Yosuke Matsumoto, Mihoko Yoshida, Kazuho Shimura, Hiroto Kaneko, Tohru Inaba, Shigeo Horiike, Junya Kuroda, Masafumi Taniwaki
Hairy B-cell lymphoproliferative disorder (HBLD) is one of chronic polyclonal B-cell lymphocytosis. We report a 47-year-old female Japanese patient diagnosed as having HBLD based on lymphocytosis with hairy cell appearance and characteristic phenotypes including CD11c+ and without B-cell monoclonality. She was a non-smoker and possessed HLA-DR4. She has been closely followed up without treatment and lymphoma development for over five years. Although this disease is quite rare and has been reported, to our knowledge, in only 13 Japanese cases, an accurate diagnosis, particularly differential diagnosis from persistent polyclonal B-cell lymphocytosis or hairy cell leukemia-Japanese variant is essential for the prevention of unnecessary treatments...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28893938/epstein-barr-virus-associated-lymphomas
#17
REVIEW
Claire Shannon-Lowe, Alan B Rickinson, Andrew I Bell
Epstein-Barr virus (EBV), originally discovered through its association with Burkitt lymphoma, is now aetiologically linked to a remarkably wide range of lymphoproliferative lesions and malignant lymphomas of B-, T- and NK-cell origin. Some occur as rare accidents of virus persistence in the B lymphoid system, while others arise as a result of viral entry into unnatural target cells. The early finding that EBV is a potent B-cell growth transforming agent hinted at a simple oncogenic mechanism by which this virus could promote lymphomagenesis...
October 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28893099/obinutuzumab-for-the-treatment-of-chronic-lymphocytic-leukemia-and-other-b-cell-lymphoproliferative-disorders
#18
Rabih Said, Apostolia M Tsimberidou
Chemoimmunotherapeutic regimens using the anti-CD20 antibody rituximab improved significantly the survival rates in various B-cell lymphoproliferative disorders (LPDs), including chronic lymphocytic leukemia (CLL). The next-generation CD20 antibody obinutuzumab represents an addition to the drug armamentarium used for the therapeutic management of patients with LPDs. Areas covered: Herein, the authors discuss the biochemical and conformational engineering of obinutuzumab to increase antibody-dependent cell-mediated cytotoxicity and direct cell death...
September 11, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28892912/important-diagnostic-clues-for-diagnosing-splenic-marginal-zone-lymphoma-in-absence-of-splenic-histology
#19
Anisha Mohanpuria, Vijay Kumar, Pooja Suteri, Sadhna Marwah, Abhay Shankar Nigam
Splenic Marginal Zone Lymphoma (SMZL) is a rare B-cell neoplasm comprising less than 2% of non-Hodgkin lymphomas. We hereby report a case of SMZL in a 66-year-old female who presented with fever and massive splenomegaly. Peripheral blood smear examination showed atypical lymphoid cells showing variable cytoplasmic processes. Flowcytometric immunophenotyping of peripheral blood showed tumour cells which were found to be positive for CD19, CD79b and showing kappa light chain restriction along with lack of expression for CD5, CD10, CD23, CD103 and lambda...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890022/lymphoproliferative-responses-to-dendritic-cell-presentation-of-sensitizing-allergens-in-atopic-children-with-multiple-allergies
#20
Tim H Scott-Taylor, Stefan-Claudiu Axinia, Stephan Strobel
BACKGROUND: Peripheral blood mononuclear cells (PBMCs) proliferate inconsistently, rendering current lymphoproliferation assays unreliable in diagnosis. OBJECTIVE: To investigate the utility and nature of proliferation responses in allergy by comparison of the standard lymphoproliferation with a new dendritic cell (DC) stimulated assay. METHODS: Monocyte-derived DCs were pulsed with allergens and incubated with autologous T cells for 7 days...
September 2017: Annals of Allergy, Asthma & Immunology
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