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cutaneous B cell lymphoma

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https://www.readbyqxmd.com/read/29932089/three-cases-of-non-hodgkin-s-lymphoma-in-hiv-infected-bulgarian-patients
#1
Nina Yancheva, Dimitar Strashimirov, Vasil Hrischev, Tatyana Tchervenyakova, Maria Nikolova, Ivaylo Aleksiev
HIV-associated lymphoma was first classified as an AIDS-defining disease by the American Center for Disease Control and Prevention (CDC) in 1985. Non-Hodgkin's lymphomas (NHLs) are frequent malignancies in AIDS patients. The risk of NHL in the case of an underlying HIV infection is estimated to be 100 times greater than in the general population, and it increases with the progression of the retrovirus-related immunosuppression. Cases of HIV-related non-Hodgkin's lymphoma are widely documented in the literature...
June 1, 2018: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/29931605/extranodal-diffuse-large-b-cell-lymphoma-molecular-features-prognosis-and-risk-of-central-nervous-system-recurrence
#2
REVIEW
Thomas A Ollila, Adam J Olszewski
Diffuse large B cell lymphoma (DLBCL) arises from extranodal organs in about 30% of cases. Its prognosis and risk of recurrence in the central nervous system (CNS) vary according to the primary site of origin. Recent studies begin to clarify these differences using molecular classification. Testicular, breast, and uterine DLBCL (as well as possibly primary cutaneous DLBCL, leg-type) share a high prevalence of the non-germinal center B cell (non-GCB) phenotype and the MYD88/CD79B-mutated (MCD) genotype. These biologic features, which resemble primary CNS lymphoma, may underlie their stage-independent propensity for CNS involvement...
June 21, 2018: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29917213/methotrexate-in-the-treatment-of-mycosis-fungoides-a-multicenter-observational-study-in-79-patients
#3
K Olek-Hrab, J Maj, E Chmielowska, A Jankowska-Konsur, B Olszewska, B Kręcisz, P Iwankowski, M Mackiewicz-Wysocka, Z Adamski, R Nowicki, M Sokolowska-Wojdylo
OBJECTIVE: The first report concerning methotrexate (MTX) in the treatment of Mycosis fungoides (MF) was published in 1964 by Wright. The mechanism of MTX action in the treatment of primary cutaneous T-cell lymphoma (CTCL) has been not explained in detail yet (the anti-inflammatory, immunomodulating, immunosuppressive, and cytostatic actions have been under discussion). PATIENTS AND METHODS: This is a retrospective analysis of 79 MF patients in 4 dermatology clinical centers in Poland...
June 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29899297/molecular-mechanisms-of-disease-progression-in-primary-cutaneous-diffuse-large-b-cell-lymphoma-leg-type-during-ibrutinib-therapy
#4
Lucy C Fox, Costas K Yannakou, Georgina Ryland, Stephen Lade, Michael Dickinson, Belinda A Campbell, Henry Miles Prince
Primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL-LT) is one of the well-recognized extranodal lymphomas commonly addicted to the B-cell receptor-MYD88 superpathway. We aimed to describe the genomic changes in a patient who progressed through treatment with ibrutinib, a Bruton’s tyrosine kinase (BTK) inhibitor. An 80-year-old woman presented with multiply relapsed PCDLBCL-LT after multiple lines of chemoimmunotherapy and radiotherapy. Pre-treatment testing of the localized cutaneous tumor lesion on a lymphoid amplicon panel demonstrated an MYD88 p...
June 13, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29884520/atypical-presentation-of-blastic-plasmacytoid-dendritic-cell-neoplasm-a-potential-diagnostic-pitfall-in-nasal-cavity
#5
Fang Yu, Ke Sun, Zhaoming Wang
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare disease with an aggressive clinical course resulting in median survival times of 12 to 14 months.1 It represents approximately 0.8% of primary cutaneous lymphomas.2 According to the World Health Organization Classification of Tumors of Hematopoietic and Lymphoid Tissue, published in 2008, BPDCN is defined as an acute myeloid leukemia related precursor neoplasm, derived from precursors of the plasmacytoid dendritic cell. It is characterized microscopically by its dense monomorphous infiltrates of medium-sized blastoid morphology and expression of CD4 and CD56, as well as the absence of any common myeloid, T-lymphoid, B-lymphoid, and natural killer-lymphoid lineage markers...
May 3, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29881891/-primary-cutaneous-lymphoma-a-case-series-of-163-patients
#6
D Nashan, C M Friedrich, E Geissler, A Schmitt-Graeff, F Klein, F Meiss
BACKGROUND: In addition to a broad and clinically diverse spectrum of known primary cutaneous lymphomas, for which an incidence of 1-3:100,000 is postulated, each year further entities are specified and defined. The goal is the presentation of a case series from daily clinical routine. METHODS: Over a period of 6 years and 2 months, patients consulting the Department of Dermatology, Medical Center University of Freiburg, were registered. Subsequently, collectives of mycosis fungoides (MF), Sezary syndrome (SS), CD30+ lymphoproliferative diseases, single cases with rare primary cutaneous lymphomas, and subcollectives of B‑cell lymphomas were examined...
June 7, 2018: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29877892/primary-cutaneous-follicle-center-lymphoma-clear-cell-variant-expanding-the-spectrum-of-cutaneous-clear-cell-neoplasms
#7
Angelo Cassisa, Francesco Colpani, Rosa Rinaldi, Luca Cima
Primary cutaneous follicle center lymphoma is the most frequent cutaneous B-cell lymphoma despite the fact that is an uncommon disease. Mild biological behavior and good prognosis characterized this neoplasm with a low aggressiveness compared with classic nodal follicular lymphoma (FL). Rare histological variants have been described. We present the case of a 72-year-old man who underwent surgery for a cutaneous nodule on his left scapula. The biopsy showed a dermal clear cell proliferation arranged in a nodular and diffuse pattern...
May 30, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29874360/hemophagocytic-lymphohistiocytosis-in-cutaneous-t-cell-lymphoma
#8
Dylan E Lee, M Estela Martinez-Escala, Linda M Serrano, Xiaolong A Zhou, Jason B Kaplan, Barbara Pro, Jaehyuk Choi, Joan Guitart
Importance: Hemophagocytic lymphohistiocytosis (HLH) has been reported as a serious complication of cutaneous T-cell lymphoma (CTCL). Despite available diagnostic guidelines, it remains a diagnostic and therapeutic challenge in this patient population. Objectives: To examine the characteristics of CTCL associated with HLH and analyze the presenting signs and symptoms, therapeutic options, and outcome. Design, Setting, and Participants: In this case series, patients diagnosed with CTCL and HLH who were treated at a single institution from January 1, 2014, through December 31, 2017, were studied...
June 6, 2018: JAMA Dermatology
https://www.readbyqxmd.com/read/29851123/composite-cutaneous-lymphoma-of-diffuse-large-b-cell-lymphoma-leg-type-and-subcutaneous-panniculitis-like-t-cell-lymphoma
#9
Vanessa Szablewski, Valérie Costes-Martineau, Céline René, Aurélie Croci-Torti, Jean-Marie Joujoux
Composite lymphoma (CL) is a rare disease defined by the occurrence of 2 distinct lymphomas within a single tissue at the same time. We present the case of an 89-year-old male with a clinical history of immunoglobulin M monoclonal gammapathy of undetermined significance (IgM MGUS). The patient presented cutaneous eruption of nodules on the right bottom and arm. An excisional biopsy revealed cutaneous infiltration composed of 2 components. The first one consisted of large B-cell with CD20+/MUM1+/BCL2+ phenotype whereas the second one involved the subcutaneous fat in a panniculitis manner, was CD3+/CD8+/GranzymeB+/TCRβF1+...
May 30, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29796688/lymphomatoid-papulosis-lyp-associated-with-diffuse-large-b-cell-lymphoma-and-cutaneous-anaplastic-large-cell-lymphoma-lyp-as-a-haematological-malignancy-related-dermadrome
#10
Fumi Miyagawa, Hiroshi Iioka, Hideo Asada
No abstract text is available yet for this article.
May 24, 2018: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29779211/cutaneous-sarcoidosis-a-new-subset-in-the-spectrum-of-paraneoplastic-dermatoses
#11
M El-Khalawany, A Mosbeh, S Aboeldahab, S Ali
BACKGROUND: Sarcoidosis is a well-described disease that can be associated with various malignancies; however, this correlation is still not fully clarified. AIM: To determine the clinical and histological features, demographic characteristics, and prognosis of patients diagnosed with paraneoplastic sarcoidosis (PS). METHODS: This observational cohort prospective study included all patients diagnosed as cutaneous sarcoidosis. All patients were monitored for therapeutic response, prognosis, and any associated diseases or malignancies...
May 20, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29778492/tanovea%C3%A2-for-the-treatment-of-lymphoma-in-dogs
#12
REVIEW
Erik De Clercq
Tanovea® (first named GS-9219, then VDC-1101, generic name: rabacfosadine) is a pro-prodrug or "double" prodrug of PMEG [9-(2-phosphonylmethoxyethyl)guanine], which has been conditionally approved by the US FDA (Food and Drug Administration) for the treatment of lymphoma in dogs. Tanovea has been demonstrated to be effective against non-Hodgkin's lymphoma (NHL) in dogs, as well as canine cutaneous T-cell lymphoma, spontaneous canine multiple myeloma, naïve canine multicentric lymphoma and relapsed canine B-cell lymphoma...
May 17, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29766412/cutaneous-large-b-cell-lymphoma-involving-the-duodenum-and-the-bile-duct-a-case-report
#13
Lamine Hamzaoui, Mouna Medhioub, Amal Khsiba, Moufida Mahmoudi, Talel Badri, Mohamed Msaddak Azouz
No abstract text is available yet for this article.
May 16, 2018: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29751003/special-at-rich-binding1-protein-satb1-in-malignant-t-cells
#14
Simon Fredholm, Andreas Willerslev-Olsen, Özcan Met, Linda Kubat, Maria Gluud, Sarah L Mathiasen, Christina Friese, Edda Blümel, David L Petersen, Tengpeng Hu, Claudia Nastasi, Lise M Lindahl, Terkild B Buus, Thorbjørn Krejsgaard, Mariusz A Wasik, Katharina L Kopp, Sergei B Koralov, Jenny L Persson, Charlotte M Bonefeld, Carsten Geisler, Anders Woetmann, Lars Iversen, Jurgen C Becker, Niels Odum
Deficient expression of Suppressor Special AT-rich Binding-1 (SATB1) hampers thymocyte development and results in inept T cell lineages. Recent data implicate dysregulated SATB1 expression in the pathogenesis of mycosis fungoides (MF), the most frequent variant of cutaneous T cell lymphoma (CTCL). Here we report on a disease-stage-associated decrease of SATB1 expression and an inverse expression of STAT5 and SATB1 in situ. Importantly, STAT5 inhibited SATB1 expression through induction of miR-155. Decreased SATB1 expression triggered enhanced expression of IL-5 and IL-9 (but not IL-6 and IL-32) whereas increased SATB1 expression had the opposite effect indicating that the mir-155 target SATB1 is a repressor of IL-5 and IL-9 in malignant T cells...
May 8, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29745269/biophysical-and-photobiological-basics-of-water-filtered-infrared-a-hyperthermia-of-superficial-tumors
#15
Peter Vaupel, Helmut Piazena, Werner Müller, Markus Notter
Thermography-controlled, water-filtered infrared-A (wIRA) is a novel, effective and approved heating technique listed in the ESHO quality assurance guidelines for superficial hyperthermia clinical trials (2017). In order to assess the special features and the potential of wIRA-hyperthermia (wIRA-HT), detailed and updated information about its physical and photobiological background is presented. wIRA allows for (a) application of high irradiances without skin pain and acute grade 2-4 skin toxicities, (b) prolonged, therapeutically relevant exposure times using high irradiances (150-200 mW/cm2 ) and (c) faster and deeper heat extension within tissues...
May 10, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29743350/high-throughput-sequencing-of-the-t-cell-receptor-%C3%AE-gene-identifies-aggressive-early-stage-mycosis-fungoides
#16
Adele de Masson, John T O'Malley, Christopher P Elco, Sarah S Garcia, Sherrie J Divito, Elizabeth L Lowry, Marianne Tawa, David C Fisher, Phillip M Devlin, Jessica E Teague, Nicole R Leboeuf, Ilan R Kirsch, Harlan Robins, Rachael A Clark, Thomas S Kupper
Mycosis fungoides (MF), the most common cutaneous T cell lymphoma (CTCL) is a malignancy of skin-tropic memory T cells. Most MF cases present as early stage (stage I A/B, limited to the skin), and these patients typically have a chronic, indolent clinical course. However, a small subset of early-stage cases develop progressive and fatal disease. Because outcomes can be so different, early identification of this high-risk population is an urgent unmet clinical need. We evaluated the use of next-generation high-throughput DNA sequencing of the T cell receptor β gene ( TCRB ) in lesional skin biopsies to predict progression and survival in a discovery cohort of 208 patients with CTCL (177 with MF) from a 15-year longitudinal observational clinical study...
May 9, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29734473/treatment-for-hepatitis-c-virus-associated-mixed-cryoglobulinaemia
#17
REVIEW
Nuria Montero, Alexandre Favà, Eva Rodriguez, Clara Barrios, Josep M Cruzado, Julio Pascual, Maria Jose Soler
BACKGROUND: Hepatitis C virus (HCV)-associated mixed cryoglobulinaemia is the manifestation of an inflammation of small and medium-sized vessels produced by a pathogenic IgM with rheumatoid factor activity generated by an expansion of B-cells. The immune complexes formed precipitate mainly in the skin, joints, kidneys or peripheral nerve fibres. Current therapeutic approaches are aimed at elimination of HCV infection, removal of cryoglobulins and also of the B-cell clonal expansions. The optimal treatment for it has not been established...
May 7, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29727899/-non-epitheliotropic-b-cell-lymphoma-with-atypical-spindle-cell-morphology-in-a-weimaraner-dog
#18
Swantje Witt, Katja Willeke, Kernt Köhler, Natali Bauer
The case report describes a very rare cutaneous non-epitheliotropic B-cell lymphoma in an 11-year-old male Weimaraner dog, which presented with multiple cutaneous proliferations. In addition to numerous cytoplasmic fragments of lymphatic cells, the cytological examination of a fine-needle aspirate taken from a skin nodule revealed a population of pleomorphic plump to spindle-shaped cells with round to oval nuclei, fine chromatin structure, moderate amounts of a lightly basophilic cytoplasm and predominantly indistinct cell boundaries...
April 2018: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/29719024/molecular-advances-in-cutaneous-t-cell-lymphoma
#19
Armando N Bastidas Torres, Safa Najidh, Cornelis P Tensen, Maarten H Vermeer
Cutaneous T-cell lymphoma (CTCL) is a group of malignancies derived from skin-homing T cells. Mycosis fungoides (MF) and Sézary syndrome (SS) are the most common CTCL variants. In recent years, the genetic landscape of SS/MF has been characterized using genome-wide nextgeneration sequencing approaches. These studies have revealed that genes subjected to oncogenic mutations take part in cell cycle regulation, chromatin modification, Janus kinase (JAK)-signal transducer and activator of transcription protein (STAT) signaling, T-cell receptor (TCR)/ nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling, and microtubule associated protein kinase (MAPK) signaling, which suggests that deregulation of these cellular processes underlies lymphomagenesis...
March 2018: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29719020/primary-cutaneous-b-cell-lymphomas-clinical-and-histopathologic-features-differential-diagnosis-and-treatment
#20
Steven T Chen, Jeffrey Barnes, Lyn Duncan
Cutaneous B-cell lymphomas (CBCLs) are a heterogeneous group of diseases that can have variable presentations, prognoses, and treatments. The proper identification of a CBCL hinges on proper histopathologic and clinical evaluation. Comprising 25% to 30% of the primary cutaneous lymphomas, incident cases of CBCL are rare. Given the variable natural history of the CBCL, proper classification is critical so that patients are treated appropriately. CBCLs can be divided into 2 main groups: indolent and aggressive...
March 2018: Seminars in Cutaneous Medicine and Surgery
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