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https://www.readbyqxmd.com/read/29035453/immunophenotyping-of-chronic-lymphocytic-leukemia
#1
Mesude Falay And Gulsum Ozet
BACKGROUND: Chronic Lymphocytic Leukemia (CLL) is one of the most common diagnoses made by flow cytometry laboratories. There is no consensus on which markers need to be used in flow cytometry for accurate immunophenotyping. Herein, we investigated the role of markers used in flow cytometry in the distinction between CLL and MCL. METHODS: A total 339 recently diagnosed B lymphoproliferative patient cases were retrospectively studied for their immunophenotypical propoerties using flow cytometry...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29024518/cd5-b-lymphoproliferative-disorder-with-subsequent-development-of-plasma-cell-leukaemia-diagnostic-and-aetiologic-reasoning
#2
Evdoxia Gounari, Georgia Kaiafa, Triantafyllia Koletsa, Vasiliki Tsavdaridou, Ioannis Kostopoulos, Lilian Toptsi, Lemonia Skoura
BACKGROUND: Plasma cell myeloma (PCM) has been sporadically reported to occur simultaneously or subsequently to mature B lymphoproliferative disorders (LPDs), predominantly chronic lymphocytic leukaemia (CLL). METHODS: We describe the clinical and laboratory findings of a 69-year-old male patient who developed plasma cell leukaemia (PCL) 8 years after an initial diagnosis of a low stage CD5+ B LPD and 3 years after treatment for LPD. RESULTS: The transition from a clinically indolent B LPD to an aggressive PCM was documented by bone marrow (BM) biopsy, while flow cytometric (FC) immunophenotyping conferred additional information by disclosing the co-existence of both disorders in BM and the presence of abnormal monotypic PCs in peripheral blood above PCL levels...
October 10, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29024461/reproducible-diagnosis-of-chronic-lymphocytic-leukemia-by-flow-cytometry-an-european-research-initiative-on-cll-eric-european-society-for-clinical-cell-analysis-escca-harmonisation-project
#3
Andy C Rawstron, Karl-Anton Kreuzer, Asha Soosapilla, Martin Spacek, Olga Stehlikova, Peter Gambell, Neil McIver-Brown, Neus Villamor, Katherina Psarra, Maria Arroz, Raffaella Milani, Javier de la Serna, M Teresa Cedena, Ozren Jaksic, Josep Nomdedeu, Carol Moreno, Gian Matteo Rigolin, Antonio Cuneo, Preben Johansen, Hans E Johnsen, Richard Rosenquist, Carsten Utoft Niemann, Wolfgang Kern, David Westerman, Marek Trneny, Stephen Mulligan, Michael Doubek, Sarka Pospisilova, Peter Hillmen, David Oscier, Michael Hallek, Paolo Ghia, Emili Montserrat
The diagnostic criteria for CLL rely on morphology and immunophenotype. Current approaches have limitations affecting reproducibility and there is no consensus on the role of new markers. The aim of this project was to identify reproducible criteria and consensus on markers recommended for the diagnosis of CLL. ERIC/ESCCA members classified 14 of 35 potential markers as "required" or "recommended" for CLL diagnosis, consensus being defined as >75% and >50% agreement, respectively. An approach to validate "required" markers using normal peripheral blood was developed...
October 10, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28975027/second-lung-malignancy-and-richter-syndrome-in-chronic-lymphocytic-leukemia-case-report-and-literature-review
#4
Ghassen Soussi, Selsabil Daboussi, Samira Mhamdi, Zied Moatemri, Hela Ghedira, Chiraz Aichaouia, Mohsen Khadhraoui, Faouzi El Mezni, Rezaik Cheikh
BACKGROUND: Chronic lymphocytic leukemia (CLL) is the most frequent lymphoproliferative disease. Transformation into Richter disease and occurrence of second malignancies involving the lungs are rare complications. The hallmarks of any thoracic involvement are still unknown. CASE PRESENTATION: We report a case of a 56-year-old male patient, with history of tobacco smoking, who presented with recurrent hemoptysis, fatigue and weight loss. Physical examination was normal except a slightly enlarged supraclavicular lymph node...
2017: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/28940587/liver-dysfunction-in-chronic-lymphocytic-leukemia-prevalence-outcomes-and-pathological-findings
#5
Paul J Hampel, Kari G Chaffee, Rebecca L King, Douglas Simonetto, Melissa C Larson, Sara Achenbach, Timothy G Call, Wei Ding, Saad S Kenderian, Jose F Leis, Asher A Chanan-Khan, Deborah A Bowen, Michael J Conte, Susan M Schwager, Curtis A Hanson, Susan L Slager, Neil E Kay, Tait D Shanafelt, Sameer A Parikh
The prevalence of liver dysfunction and its association with outcomes in patients with previously untreated chronic lymphocytic leukemia (CLL) is unknown. Newly diagnosed (<12 months) previously untreated CLL patients seen at Mayo Clinic, Rochester, MN between 9/1993 and 4/2016 who had baseline assessment of at least one liver function test (LFT) were included in this analysis. The prevalence of liver dysfunction at baseline, proportion of patients who acquired LFT abnormalities, time to first therapy (TTFT) and overall survival (OS) were assessed...
September 22, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28937430/cutaneous-richter-syndrome-mimicking-primary-cutaneous-cd4-positive-small-medium-t-cell-lymphoma-case-report-and-review-of-the-literature
#6
Miguel Rito, José Cabeçadas, Joaninha Costa Rosa, Mariana Cravo, Alistair Robson
Richter syndrome represents the transformation of chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma into an aggressive large B-cell lymphoma. Skin involvement is exceptionally rare, with <20 cases reported and its presence as the first presentation of CLL/small lymphocytic lymphoma, as an isolated skin lesion has never been described. Primary cutaneous CD4-positive small/medium T-cell lymphoma (CD4 PCSM-TCL) characteristically presents with a dense dermal infiltrate consisting primarily of small-/medium-sized pleomorphic T-cells and less than 30% large pleomorphic cells...
September 12, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28919818/standard-of-care-and-direct-medical-costs-of-the-treatment-of-chronic-lymphocytic-leukemia-among-the-adult-population-in-ukraine-russia-and-kazakhstan-data-from-the-leukospect-study
#7
Averyan Vasylyev, Valentina Molostvova, Boris A Rebrov, Janina Makarova, Andrey Zaritskey, Vadim Ptushkin, Raigul Ramazanova, Yuriy Popovych, Orest Tsyapka, Evgeny Pashanov
PURPOSE: The LEUKOSPECT study aimed to describe health service utilization and to estimate the direct medical costs (DMCs) of chronic lymphocytic leukemia (CLL) in 2013 in the adult population of three post-Soviet countries - Russia, Ukraine, and Kazakhstan. As oncologic medical care is provided by federal state-owned, specialized medical institutions, the cost estimation in this study primarily informs from a state budget perspective. Patients' contributions to medical costs were not included in the cost evaluation...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28903739/evolving-dna-methylation-and-gene-expression-markers-of-b-cell-chronic-lymphocytic-leukemia-are-present-in-pre-diagnostic-blood-samples-more-than-10%C3%A2-years-prior-to-diagnosis
#8
Panagiotis Georgiadis, Irene Liampa, Dennie G Hebels, Julian Krauskopf, Aristotelis Chatziioannou, Ioannis Valavanis, Theo M C M de Kok, Jos C S Kleinjans, Ingvar A Bergdahl, Beatrice Melin, Florentin Spaeth, Domenico Palli, R C H Vermeulen, J Vlaanderen, Marc Chadeau-Hyam, Paolo Vineis, Soterios A Kyrtopoulos
BACKGROUND: B-cell chronic lymphocytic leukemia (CLL) is a common type of adult leukemia. It often follows an indolent course and is preceded by monoclonal B-cell lymphocytosis, an asymptomatic condition, however it is not known what causes subjects with this condition to progress to CLL. Hence the discovery of prediagnostic markers has the potential to improve the identification of subjects likely to develop CLL and may also provide insights into the pathogenesis of the disease of potential clinical relevance...
September 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28884705/cryptochrome-1-gene-expression-is-a-reliable-prognostic-indicator-in-egyptian-patients-with-chronic-lymphocytic-leukemia-a-cohort-prospective-study
#9
Deena Mohamed Habashy, Deena Samir Eissa, Mona Mahmoud Aboelez
Objectives Traditional prognostic factors have proven insufficient to account for the observed heterogeneity in the clinical behavior of chronic lymphocytic leukemia (CLL). Cryptochrome-1 (CRY-1) is a circadian clock gene essential in maintaining circadian rhythm and regulating cell proliferation. We evaluated CRY-1 gene expression in CLL patients, and assessed its putative role as a prognostic indicator for the clinical course of CLL. Materials and Methods Hundred CLL patients at diagnosis were studied for CRY-1 gene expression by qRT-PCR, and were followed up for assessment of time to first treatment (TFT)...
September 8, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28851760/tumor-lysis-syndrome-in-chronic-lymphocytic-leukemia-with-novel-targeted-agents
#10
Bruce D Cheson, Sari Heitner Enschede, Elisa Cerri, Monali Desai, Jalaja Potluri, Nicole Lamanna, Constantine Tam
Tumor lysis syndrome (TLS) is an uncommon but potentially life-threatening complication associated with the treatment of some cancers. If left untreated, TLS may result in acute renal failure, cardiac dysrhythmia, neurologic complications, seizures, or death. Tumor lysis syndrome is most commonly observed in patients with hematologic malignancies with a high proliferation rate undergoing treatment with very effective therapies. In chronic lymphocytic leukemia (CLL), historically, TLS has been observed less often, owing to a low proliferation rate and slow response to chemotherapy...
August 29, 2017: Oncologist
https://www.readbyqxmd.com/read/28839454/donor-cell-origin-high-risk-myelodysplastic-syndrome-synchronous-with-an-intracranial-meningioma-like-tumor-8-years-after-allogeneic-hematopoietic-stem-cell-transplantation-for-chronic-lymphocytic-leukemia
#11
G Brás, C Pinho-Vaz, A Campos
Secondary neoplasias are well known consequences of radiotherapy or chemotherapy for a primary cancer. In this report, we describe two rare secondary neoplasias occurring in the same patient: a meningioma-like intracranial tumor and high-risk myelodysplastic syndrome (MDS) of donor-cells origin, both diagnosed simultaneously, 8 years after an allogeneic hematopoietic stem cell transplantation (allo-HSCT) for chronic lymphocytic leukemia (CLL). Due to an engraftment failure during the first allo-HSCT of a matched related donor for CLL treatment, the salvage treatment was a second allo-HSCT...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28837797/ocular-adnexal-lymphoma-dissimilar-to-systemic-lymphoma
#12
Tal J Rubinstein, Hassan A Aziz, Claudine Bellerive, Bryan S Sires, Andrew W Hing, Gabriel Habermehl, Eric Hsi, Arun D Singh
Ocular adnexal lymphoma (OAL) and intraocular lymphoma, whether occurring simultaneously or sequentially, are often similar to associated systemic lymphoma. We describe 4 cases of OAL or intraocular lymphoma with dissimilar systemic lymphoma. Two of the cases represent Richter transformation of chronic lymphocytic leukemia/small cell lymphoma (CLL/SLL) into diffuse large B-cell lymphoma (DLBCL). The third patient developed conjunctival extranodal marginal zone lymphoma (EMZL) following treatment for Hodgkin lymphoma...
August 21, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28832948/diagnosis-of-cll-revisited-increased-specificity-by-a-modified-five-marker-scoring-system-including-cd200
#13
Thomas Köhnke, Veronika K Wittmann, Veit L Bücklein, Felix Lichtenegger, Zlatana Pasalic, Wolfgang Hiddemann, Karsten Spiekermann, Marion Subklewe
The modified Matutes score has been the basis for the diagnosis of chronic lymphocytic leukaemia (CLL) by flow cytometry for the past 15 years. To increase the specificity of the current score we systematically evaluated the diagnostic value of established as well as novel markers, such as CD200, in a large cohort of patients with untreated B-cell malignancies (n = 370). Double positivity for CD5 and CD23 was of very high value to differentiate between CLL and non-CLL cases. In addition, lack of FMC7 expression as well as CD79b expression intensity showed high sensitivity (90·4% and 92·3%) with acceptable specificity (74·4% and 76·9%)...
August 18, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28830803/acute-promyelocytic-leukemia-in-a-patient-with-chronic-lymphocytic-leukemia-a-case-report
#14
Prajwal Boddu, Ellen Schlette, Beenu Thakral, Guillin Tang, Naveen Pemmaraju, Tapan Kadia, Alessandra Ferrajoli, Farhad Ravandi, William Wierda, Nitin Jain
Chronic lymphocytic leukemia (CLL) is known to be associated rarely with myeloid malignancies such as acute myelogenous leukemia. In this article, we report an extremely rare occurrence of acute promyelocytic leukemia in a patient with CLL. A 71-year-old man first presented to our clinic with a diagnosis of CLL and worsening motor neuropathy symptoms. It was suspected that his CLL might be contributing to the neuropathy as a paraneoplastic syndrome, and he was treated with rituximab monotherapy in weekly doses for the 1st month and monthly treatments thereafter...
August 16, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28810819/low-cll-1-expression-is-a-novel-adverse-predictor-in-123-patients-with-de-novo-cd34-acute-myeloid-leukemia
#15
Yan-Yu Wang, Wen-Lian Chen, Xiang-Qin Weng, Yan Sheng, Jing Wu, Jie Hao, Zhan-Yun Liu, Yong-Mei Zhu, Bing Chen, Shu-Min Xiong, Yu Chen, Qiu-Sheng Chen, Hui-Ping Sun, Jun-Min Li, Jin Wang
Recent reports state that C-type lectin-like molecule-1 (CLL-1) in acute myeloid leukemia (AML) is expressed primarily on myeloid cells, but there is still no investigation about its prognostic significance on leukemic blast compartment. Hence, this study aimed to evaluate the prognostic value of CLL-1 in 123 patients with de novo CD34(+) Non-M3 AML. Multiparameter flow cytometry was used to assess the expression of CLL-1 on immature compartment in AML and control groups. We found that CLL-1 expression level on blast compartment was closely linked to clinical characteristics, treatment response, and survival outcome of patients...
October 15, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28803824/the-clinical-spectrum-of-hepatic-manifestations-in-chronic-lymphocytic-leukemia
#16
REVIEW
Natalia Kreiniz, Ofrat Beyar Katz, Aaron Polliack, Tamar Tadmor
Chronic lymphocytic leukemia (CLL) is the most common leukemia in the Western world, characterized by the presence of long-lived circulating leukemic cells in the peripheral blood that may infiltrate all organs, particularly those of the reticulo-endothelial system. Liver enlargement and elevation of liver enzymes related to specific involvement by the underlying disease are well-recognized features in these patients. In CLL, the differential diagnosis of liver disorders is broad and includes liver infiltration by leukemic cells, immunologic manifestations associated with CLL, primary and secondary hepatic malignancies, drug-induced hepatotoxicity, infections, and Richter transformation...
July 23, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28782884/chronic-lymphocytic-leukemia-2017-update-on-diagnosis-risk-stratification-and-treatment
#17
REVIEW
Michael Hallek
DISEASE OVERVIEW: Chronic lymphocytic leukemia (CLL) is the commonest leukemia in western countries. The disease typically occurs in elderly patients and has a highly variable clinical course. Leukemic transformation is initiated by specific genomic alterations that impair apoptosis of clonal B cells. DIAGNOSIS: The diagnosis is established by blood counts, blood smears, and immunophenotyping of circulating B lymphocytes, which identify a clonal B-cell population carrying the CD5 antigen and B-cell markers...
September 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28766542/-efficacy-of-a-bendamustine-and-rituximab-combination-in-first-line-therapy-for-chronic-lymphocytic-leukemia-results-of-the-ben-001-study
#18
E A Stadnik, V V Strugov, T O Andreeva, Yu V Virts, A M Rumyantsev, Yu V Mirolyubova, P A Butylin, A Yu Zaritsky
AIM: To evaluate the efficacy and safety of the BR regimen containing bendamustine in patients with chronic lymphocytic leukemia (CLL) who have not previously received specific therapy. SUBJECTS AND METHODS: The results of the Russian prospective observational multicenter study BEN-001 (2012-2015) covering 196 CLL patients from 34 centers of the Russian Federation were analyzed. The diagnosis was confirmed by the results of peripheral blood lymphocyte immunophenotyping...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28744752/radiotherapy-for-ductal-carcinoma-in-situ-and-risk-of-second-non-breast-cancers
#19
Diana R Withrow, Lindsay M Morton, Rochelle E Curtis, Sara J Schonfeld, Amy Berrington de González
PURPOSE: Radiotherapy for ductal carcinoma (DCIS) is increasing, but the risks and benefits of the treatment remain uncertain. We aimed to investigate the relationship between radiotherapy for DCIS and risk of second non-breast cancers in a large US cohort. METHODS: We conducted a retrospective cohort study of 52,556 women in 12 U.S. population-based cancer registries diagnosed with first primary DCIS during 1992-2008 at age 25-79 years. We estimated relative risks (RRs), attributable risks (AR), and excess absolute risks (EAR) of second non-breast cancers associated with radiotherapy using Poisson regression adjusted for age at year of diagnosis, grade, hormonal therapy (yes/no or unknown), and time since diagnosis...
July 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28743306/detection-of-22-common-leukemic-fusion-genes-using-a-single-step-multiplex-qrt-pcr-based-assay
#20
Xiaodong Lyu, Xianwei Wang, Lina Zhang, Zhenzhu Chen, Yu Zhao, Jieying Hu, Ruihua Fan, Yongping Song
BACKGROUND: Fusion genes generated from chromosomal translocation play an important role in hematological malignancies. Detection of fusion genes currently employ use of either conventional RT-PCR methods or fluorescent in situ hybridization (FISH), where both methods involve tedious methodologies and require prior characterization of chromosomal translocation events as determined by cytogenetic analysis. In this study, we describe a real-time quantitative reverse transcription PCR (qRT-PCR)-based multi-fusion gene screening method with the capacity to detect 22 fusion genes commonly found in leukemia...
July 25, 2017: Diagnostic Pathology
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