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Hairy cell leukemia

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https://www.readbyqxmd.com/read/29118233/hairy-cell-leukemia-version-2-2018-nccn-clinical-practice-guidelines-in-oncology
#1
William G Wierda, John C Byrd, Jeremy S Abramson, Seema Bhat, Greg Bociek, Danielle Brander, Jennifer Brown, Asher Chanan-Khan, Steve E Coutre, Randall S Davis, Christopher D Fletcher, Brian Hill, Brad S Kahl, Manali Kamdar, Lawrence D Kaplan, Nadia Khan, Thomas J Kipps, Jeffrey Lancet, Shuo Ma, Sami Malek, Claudio Mosse, Mazyar Shadman, Tanya Siddiqi, Deborah Stephens, Nina Wagner, Andrew D Zelenetz, Mary A Dwyer, Hema Sundar
Hairy cell leukemia (HCL) is a rare type of indolent B-cell leukemia, characterized by symptoms of fatigue and weakness, organomegaly, pancytopenia, and recurrent opportunistic infections. Classic HCL should be considered a distinct clinical entity separate from HCLvariant (HCLv), which is associated with a more aggressive disease course and may not respond to standard HCL therapies. Somatic hypermutation in the IGHV gene is present in most patients with HCL. The BRAF V600E mutation has been reported in most patients with classic HCL but not in those with other B-cell leukemias or lymphomas...
November 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29110361/hairy-cell-leukemia-2018-update-on-diagnosis-risk-stratification-and-treatment
#2
Xavier Troussard, Edouard Cornet
DISEASE OVERVIEW: Hairy cell leukemia (HCL) and HCL-like disorders, including HCL variant (HCL-V) and splenic diffuse red pulp lymphoma (SDRPL), are a very heterogeneous group of mature lymphoid B-cell disorders, characterized by the identification of hairy cells, a specific genetic profile, a different clinical course and the need for appropriate treatment. DIAGNOSIS: Diagnosis of HCL is based on morphological evidence of hairy cells, an HCL immunologic score of 3 or 4 based on the CD11C, CD103, CD123, and CD25 expression, the trephine biopsy which makes it possible to specify the degree of tumoral medullary infiltration and the presence of BRAF V600E somatic mutation...
December 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29101107/cytokines-in-cancer-immunotherapy
#3
Thomas A Waldmann
Cytokines that control the immune response were shown to have efficacy in preclinical murine cancer models. Interferon (IFN)-α is approved for treatment of hairy cell leukemia, and interleukin (IL)-2 for the treatment of advanced melanoma and metastatic renal cancer. In addition, IL-12, IL-15, IL-21, and granulocyte macrophage colony-stimulating factor (GM-CSF) have been evaluated in clinical trials. However, the cytokines as monotherapy have not fulfilled their early promise because cytokines administered parenterally do not achieve sufficient concentrations in the tumor, are often associated with severe toxicities, and induce humoral or cellular checkpoints...
November 3, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/29075489/intravascular-large-b-cell-lymphoma-associated-with-myelofibrosis-a-case-report
#4
Jong Gwon Choi, Hwan Hwi Cho, Sang Rok Kang, Se Min Jang, Eun Hyung Yoo, Hyun Jung Cho, Sun Moon Kim, Do Yeun Cho
Myelofibrosis (MF) is often accompanied by chronic myeloid leukemia, hairy cell leukemia, or certain primary myeloproliferative neoplasms, but is rarely associated with lymphoid neoplasms. We herein describe a case of intravascular large B-cell lymphoma (IVLBCL) with MF. IVLBCL is a rare, aggressive type of extranodal B-cell lymphoma, defined by proliferation of lymphomatous cells within small-to medium-sized vessels. A 60-year-old woman was admitted to the hospital with anemia, thrombocytopenia and fever. Bone marrow biopsy findings included trilineage hematopoiesis, increased numbers of immature cells, markedly abnormal and enlarged megakaryocytes, and diffuse fibrosis in multiple focal areas throughout the entire bone marrow space...
November 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29043205/an-extremely-rare-case-of-concurrent-braf-v600e-mutation-driven-hairy-cell-leukemia-and-melanoma-case-report-and-review-of-literature
#5
Amir Ghorbani-Aghbolaghi, Mirna Lechpammer, Saba F Ali, Nam K Ku, Denis M Dwyre, Hooman H Rashidi
BRAF protein is a serine/threonine kinase with 766 amino acids. Approximately 15% of human cancers harbor BRAF mutations as well as other BRAF anomalies (amplifications, fusions). Somatic mutations mainly occur in the catalytic kinase domain (CR3), and the predominant mutation is p.V600E which is the substitution of glutamic acid (E) for valine (V) as result of a mutation at codon 600 of the kinase domain. To our knowledge, the vast majority of the cancers have non-germline BRAF mutations. Here we describe a case of a 60-year-old female with a history of hairy cell leukemia (HCL) who presented with aphasia and forgetfulness...
July 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28918710/trametinib-for-the-treatment-of-ighv4-34-map2k1-mutant-variant-hairy-cell-leukemia
#6
Leslie A Andritsos, Nicole R Grieselhuber, Mirela Anghelina, Kerry A Rogers, Sameek Roychowdhury, Julie W Reeser, Cynthia D Timmers, Aharon G Freud, James S Blachly, David M Lucas, Gerard Lozanski, Jeffrey A Jones, Katie Williams, Christopher Oakes, Dan Jones, Michael R Grever
No abstract text is available yet for this article.
September 18, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28894563/hairy-b-cell-lymphoproliferative-disorder-and-its-differential-diagnosis-a-case-with-long-term-follow-up
#7
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/28892161/a-gene-is-known-by-the-company-it-keeps-enrichment-of-tnfaip3-gene-aberrations-in-malt-lymphomas-expressing-ighv4-34-antigen-receptors
#8
Andreas Agathangelidis, Aliki Xochelli, Kostas Stamatopoulos
Associations between immunoglobulin (IG) receptors with distinctive immunogenetic features and particular gene mutations are a recurring theme in mature B-cell lymphomas. Relevant observations have been made in chronic lymphocytic leukemia (CLL), where gene mutations are distributed asymmetrically in cases bearing or not somatic hypermutations within the clonotypic immunoglobulin heavy chain variable region (IGHV) genes (e.g. TP53 mutations predominate in IG-unmutated CLL, whereas the opposite is seen for MYD88 mutations, enriched in IG-mutated CLL) and in subsets of cases with stereotyped IG (enrichment for SF3B1 mutations in CLL subset #2)...
September 11, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28840848/time-to-cure-hairy-cell-leukemia
#9
Ilana Levy, Tamar Tadmor
No abstract text is available yet for this article.
August 25, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28830605/quantitative-flow-cytometric-evaluation-of-cd200-cd123-cd43-and-cd52-as-a-tool-for-the-differential-diagnosis-of-mature-b-cell-neoplasms
#10
Elissandra Machado Arlindo, Natália Aydos Marcondes, Flavo Beno Fernandes, Gustavo Adolpho Moreira Faulhaber
BACKGROUND: Distinction between mature B-cell neoplasms can be difficult due to overlapping of immunologic features and clinical manifestations. This study investigated whether quantifying mean fluorescence intensity of four monoclonal antibodies in a flow cytometry panel is useful for the differential diagnosis and characterization of these disorders. METHODS: The expressions of CD52, CD200, CD123 and CD43 were analyzed in samples from 124 patients with mature B-cell neoplasms...
July 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/28801450/genomic-analysis-of-hairy-cell-leukemia-identifies-novel-recurrent-genetic-alterations
#11
Benjamin H Durham, Bartlomiej Getta, Sascha Dietrich, Justin Taylor, Helen Won, James M Bogenberger, Sasinya Scott, Eunhee Kim, Young Rock Chung, Stephen S Chung, Jennifer Hüllein, Tatjana Walther, Lu Wang, Sydney X Lu, Christopher C Oakes, Raoul Tibes, Torsten Haferlach, Barry S Taylor, Martin S Tallman, Michael F Berger, Jae H Park, Thorsten Zenz, Omar Abdel-Wahab
Classical hairy cell leukemia (cHCL) is characterized by a near 100% frequency of the BRAFV600E mutation, whereas ∼30% of variant HCLs (vHCLs) have MAP2K1 mutations. However, recurrent genetic alterations cooperating with BRAFV600E or MAP2K1 mutations in HCL, as well as those in MAP2K1 wild-type vHCL, are not well defined. We therefore performed deep targeted mutational and copy number analysis of cHCL (n = 53) and vHCL (n = 8). The most common genetic alteration in cHCL apart from BRAFV600E was heterozygous loss of chromosome 7q, the minimally deleted region of which targeted wild-type BRAF, subdividing cHCL into those hemizygous versus heterozygous for the BRAFV600E mutation...
October 5, 2017: Blood
https://www.readbyqxmd.com/read/28766548/-hairy-cell-leukemia-and-pregnancy
#12
L S Al-Radi, T N Moiseeva, S Yu Smirnova, R G Shmakov
The paper presents experience in following up and treating hairy cell leukemia (HCL) during pregnancy. The combination of HCL and pregnancy was observed in 5 patients. The patients' median age was 35 years (range, 28-42 years). The diagnosis of HCL was based on a conventional examination protocol: clinical blood analysis with the morphological assessment of lymphocytes, a myelogram and trepanobiopsy, immunophenotypic analysis of lymphocytes or bone marrow (in all the patients), cytochemical determination of tartrate-resistant acid phosphatase in 3 patients, and identification of BRAFV600E mutation in 3 patients...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28747289/retrospective-evaluation-of-hairy-cell-leukemia-patients-treated-with-three-different-first-line-treatment-modalities-in-the-last-two-decades-a-single-center-experience
#13
Şeniz Öngören, Ahmet Emre Eşkazan, Selin Berk, Tuğrul Elverdi, Ayşe Salihoğlu, Muhlis Cem Ar, Zafer Başlar, Yıldız Aydın, Nükhet Tüzüner, Teoman Soysal
OBJECTIVE: In this study, we retrospectively analyzed the clinical outcome, treatment responses, infectious complications, and survival rates of 71 hairy cell leukemia (HCL) cases. MATERIALS AND METHODS: Sixty-six patients received a first-line treatment and 2-chlorodeoxyadenosine (cladribine-2-CdA) was administered in 31 cases, 19 patients received interferon-alpha (INF-α), splenectomy was performed in 16 cases, and rituximab was used in one. RESULTS: Although the highest overall response rate (ORR) was observed in patients receiving 2-CdA upfront, ORRs were comparable in the 2-CdA, INF-α, and splenectomy subgroups...
July 27, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28698853/hairy-cell-leukemia-a-case-report-of-atypical-presentation-without-splenomegaly
#14
Mona Alfaraj, Hussain Alsaeed
No abstract text is available yet for this article.
June 2017: Blood Research
https://www.readbyqxmd.com/read/28664939/clinical-utility-of-recently-identified-diagnostic-prognostic-and-predictive-molecular-biomarkers-in-mature-b-cell-neoplasms
#15
REVIEW
Arantza Onaindia, L Jeffrey Medeiros, Keyur P Patel
Genomic profiling studies have provided new insights into the pathogenesis of mature B-cell neoplasms and have identified markers with prognostic impact. Recurrent mutations in tumor-suppressor genes (TP53, BIRC3, ATM), and common signaling pathways, such as the B-cell receptor (CD79A, CD79B, CARD11, TCF3, ID3), Toll-like receptor (MYD88), NOTCH (NOTCH1/2), nuclear factor-κB, and mitogen activated kinase signaling, have been identified in B-cell neoplasms. Chronic lymphocytic leukemia/small lymphocytic lymphoma, diffuse large B-cell lymphoma, follicular lymphoma, mantle cell lymphoma, Burkitt lymphoma, Waldenström macroglobulinemia, hairy cell leukemia, and marginal zone lymphomas of splenic, nodal, and extranodal types represent examples of B-cell neoplasms in which novel molecular biomarkers have been discovered in recent years...
October 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28608720/diagnostic-algorithm-of-common-mature-b-cell-lymphomas-by-immunohistochemistry
#16
REVIEW
Huan-You Wang, Youli Zu
CONTEXT: - Different types of mature B-cell lymphomas, including plasma cell neoplasms, exhibit distinct immunohistochemical profiles, which enable them to be correctly diagnosed. However, except for rare examples of lymphoma-specific immunohistochemistry, such as cyclin D1 in mantle cell lymphoma and annexin A1 in hairy cell leukemia, immunohistochemical profiles of mature B-cell lymphomas overlap and lack specificity. OBJECTIVES: - To systemically review immunohistochemical features associated with commonly encountered mature B-cell lymphomas based on the presence or absence of CD5 and CD10; to review the immunophenotypic profile of plasma cells derived from plasma cell myelomas and B-cell lymphomas; and to review a group of rare, aggressive B-cell lymphomas with antigen expression features of plasma cells...
September 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28603911/cd11c-expression-in-chronic-lymphocytic-leukemia-revisited-related-with-complications-and-survival
#17
E G Umit, M Baysal, Y Durmus, A M Demir
INTRODUCTION: Chronic lymphocytic leukemia (CLL) is a disorder of mature but dysfunctional monoclonal B cells. Microenvironment, antigenic stimulation and genetical mutations are demonstrated in etiopathogenesis. We aimed to evaluate the expression of CD11c in patients with CLL and its possible clinical significance. METHODS: Data of 259 patients with CLL between 2010 and 2016 in Trakya University Faculty of Medicine, including age at diagnosis, sex, whole blood count, stage, percentage of CLL cells in bone marrow, line of treatments, development of Richter's transformation and secondary tumors, autoimmune complications, IgG level, prognostic cytogenetic analysis, and length of survival were recorded from files...
October 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28600336/diagnosis-and-classification-of-hematologic-malignancies-on-the-basis-of-genetics
#18
REVIEW
Justin Taylor, Wenbin Xiao, Omar Abdel-Wahab
Genomic analysis has greatly influenced the diagnosis and clinical management of patients affected by diverse forms of hematologic malignancies. Here, we review how genetic alterations define subclasses of patients with acute leukemias, myelodysplastic syndromes (MDS), myeloproliferative neoplasms (MPNs), non-Hodgkin lymphomas, and classical Hodgkin lymphoma. These include new subtypes of acute myeloid leukemia defined by mutations in RUNX1 or BCR-ABL1 translocations as well as a constellation of somatic structural DNA alterations in acute lymphoblastic leukemia...
July 27, 2017: Blood
https://www.readbyqxmd.com/read/28596664/bullous-pyoderma-gangrenosum-associated-with-hairy-cell-leukemia-and-its-complete-response-to-cladribine-therapy
#19
Ankur Jain, Deepesh Lad, Gaurav Prakash, Alka Khadwal, Pankaj Malhotra, Amanjit Bal, Nabhajit Mallik, Narendar Kumar, Subhash Varma
Pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis seen in association with systemic disorders including hematologic malignancies. Hairy cell leukemia (HCL) however, is an unusual association of PG. We describe a 49-year old lady who presented to our hematology clinic with easy fatiguability and ulcerative skin lesions of 6 months duration. Examination revealed pallor and massive splenomegaly. Indurated, ulcerated lesion with undermined edges and necrotic base was observed on left thigh. Investigations revealed pancytopenia and bone marrow examination identified typical hairy cells...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28592763/malignant-lymphoma-pathophysiology-and-current-therapy
#20
Koji Izutsu
Recent advances in the understanding of molecular pathogenesis of lymphoma have enabled us to clearly define disease entity by means of a disease-specific gene mutation and to select candidates for novel targeted therapy. In this review three different clinically relevant topics related to the molecular pathogenesis of lymphoma were covered. In the 2016 revision of the World Health Organization classification of lymphoid malignancies, firstly, disease-specific mutations such as MYD88 L265P in Waldenström macroglobulinemia and BRAF V600E in hairy cell leukemia were incorporated into diagnostic tests, and secondly, the determination of cell-of-origin in diffuse large B-cell lymphoma (DLBCL) was strongly recommended in diagnosis...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
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