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Leukemia And Diagnosis And Flowcytometry

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https://www.readbyqxmd.com/read/29321824/high-frequency-of-cd34-cd38-low-immature-leukemia-cells-is-correlated-with-unfavorable-prognosis-in-acute-myeloid-leukemia
#1
Adriana Plesa, Charles Dumontet, Eve Mattei, Ines Tagoug, Sandrine Hayette, Pierre Sujobert, Isabelle Tigaud, Marie Pierre Pages, Youcef Chelghoum, Fiorenza Baracco, Helene Labussierre, Sophie Ducastelle, Etienne Paubelle, Franck Emmanuel Nicolini, Mohamed Elhamri, Lydia Campos, Claudiu Plesa, Stéphane Morisset, Gilles Salles, Yves Bertrand, Mauricette Michallet, Xavier Thomas
AIM: To evaluate the importance of the CD34+CD38- cell population when compared to the CD34+CD38+/low and CD34+CD38+/high leukemic cell sub-populations and to determine its correlations with leukemia characteristics and known prognostic factors, as well as with response to therapy and survival. METHODS: Two hundred bone marrow samples were obtained at diagnosis from 200 consecutive patients with newly diagnosed acute myeloid leukemia (AML) were studied between September 2008 and December 2010 at our Institution (Hematology Department, Lyon, France)...
December 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28752543/exonal-switch-down-regulates-the-expression-of-cd5-on-blasts-of-acute-t-cell-leukaemia
#2
A K Rai, A Singh, A Saxena, T Seth, V Raina, D K Mitra
To date, CD5 expression and its role in acute T cell lymphoblastic leukaemia (T-ALL) have not been studied closely. We observed a significant reduction in surface expression of CD5 (sCD5) on leukaemic T cells compared to autologous non-leukaemic T cells. In this study, we have shown the molecular mechanism regulating the expression and function of CD5 on leukaemic T cells. A total of 250 patients suffering from leukaemia and lymphoma were immunophenotyped. Final diagnosis was based on their clinical presentation, morphological data and flow cytometry-based immunophenotyping...
December 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28713070/the-role-of-cd200-and-cd43-expression-in-differential-diagnosis-between-chronic-lymphocytic-leukemia-and-mantle-cell-lymphoma
#3
Mesude Falay, Berna Afacan Öztürk, Kürşad Güneş, Yasin Kalpakçı, Simten Dağdaş, Funda Ceran, Gülsüm Özet
OBJECTIVE: Atypical chronic lymphocytic leukemia (CLL) is most frequently confused with mantle cell lymphoma (MCL). Several markers may contribute to the diagnosis of CLL. However, there is no consensus on which markers are needed to be used in flow cytometry for the diagnosis of CLL. The aim of the present study was to investigate the role of CD43 and CD200 markers in the differential diagnosis between CLL and MCL. MATERIALS AND METHODS: To address this issue, 339 consecutive patients with CLL and MCL were included in the flow cytometry lymphoproliferative disease panel for evaluation of CD43 and CD200 expressions, but not in the Matutes scoring system...
May 25, 2018: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28544819/dual-malignancy-in-a-thyroid-papillary-thyroid-carcinoma-and-small-lymphocytic-lymphoma-a-report-of-a-case-with-a-cyto-histologic-correlation
#4
Omar I Ahmed, Ziyan T Salih
Papillary thyroid carcinoma (PTC) is the most common thyroid malignancy. Simultaneous involvement of the thyroid gland by multiple malignancies, is a rare occurrence. Similarly, primary thyroid lymphomas are also rare. We are reporting a rare case of a dual thyroid malignancy; PTC with secondary thyroid involvement by chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), diagnosed on cytology and confirmed with flow cytometry, histology and immunohistochemistry. Imaging showed two hypermetabolic nodules, one in left parotid gland, and the other in the thyroid isthmus...
September 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28324281/detection-of-minimal-residual-disease-in-childhood-b-acute-lymphoblastic-leukemia-by-4-color-flowcytometry
#5
Ahmad Baraka, Laila M Sherief, Naglaa M Kamal, Shereen El Shorbagy
Monitoring of minimal residual disease (MRD) is currently considered the most powerful predictor of outcome in acute lymphoblastic leukemia (ALL). Achievement of a negative MRD state assessed by multicolor flowcytometry (MFC) is an important predictor of disease-free survival (DFS) and overall survival (OS) in ALL patients. We sought to determine whether panels of antibodies combination are more suitable for detection of MRD in Childhood ALL. Eighty-four (84) patients with ALL (B-lineage subtype) were enrolled in this study...
June 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28164634/cd38-expression-and-variation-as-a-prognostic-factor-chronic-lymphocytic-leukemia
#6
Mesude Falay, Funda Ceran, Ahmet K Gunes, Simten Dagdas, Meltem Ayli, Gulsum Ozet
BACKGROUND: In this study, we aimed to determine a cutoff level for CD38 that would aid us in identifying chronic lymphocytic leukemia patients in need of early therapy and predicting patients at sufficiently low risk who would likely exhibit a rapid improvement; we also aimed to find out if CD38 expression would show variability during disease course and determine the extent of CD38 expression. METHODS: 124 patients were diagnosed with CLL. CD38 and ZAP-70 expression levels were measured with four color flowcytometry...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/27546960/flowcytometric-comparative-analysis-in-acute-leukemias-between-indian-and-proposed-minimal-screening-panel
#7
Srishti Gupta, Tathagata Chatterjee, Sanjeevan Sharma, Ajay Sharma, Prosenjit Ganguly, Jasjit Singh, Satyaranjan Das
BACKGROUND: Acute myeloid leukemia and acute lymphoid leukemia differ substantially in response to therapy and course, and accurate differentiation of the two is fundamental to therapeutic decisions. Immunophenotyping is used for this purpose, and various guidelines have been proposed regarding a minimal screening antibody panel. Most of them have been found inefficient. METHODS: Eighty-two cases of consecutive acute leukemias reporting to this hospital over a period of two years were included in the study...
July 2016: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/27408343/fanconi-syndrome-a-rare-initial-presentation-of-acute-lymphoblastic-leukemia
#8
Kamal Kant Sahu, Arjun Datt Law, Nidhi Jain, Alka Khadwal, Vikas Suri, Pankaj Malhotra, Subhash Chander Varma
A-14-year old boy, presented with a short history of excessive thirst and increased urine output. Clinical examination showed pallor, generalized lymphadenopathy and hepatosplenomegaly. For evaluation of his polyuric state he underwent routine laboratory investigations, including renal function test, acid-base studies, urine analysis. Blood tests suggested hypokalemia, hypouricemia, hypocalcemia and hyperchloremia with normal liver and kidney function tests. The arterial blood gas analysis was suggestive of normal anion gap metabolic acidosis...
June 2016: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/26907095/proposed-minimal-panel-of-antibodies-for-cost-effectiveness-and-accuracy-in-acute-leukemias-immunophenotyping-prospective-study-at-a-tertiary-care-center
#9
Neha Singh, Hara Prasad P Pati, Seema Tyagi, Roopam Deka, Rahul Sharma, Renu Saxena
INTRODUCTION: Flowcytometry has an essential role in the diagnosis and classification of acute leukemias. However, there exists a great degree of inter-laboratory variability on issues like panel selection, antibody combinations, gating strategies, fluorochromes, and clonal selection. AIM: The primary aim of this study was to derive a minimal panel of antibodies and evaluate its diagnostic usefulness in acute leukemias by flowcytometry by using the detailed immune-phenotype of different lineage-specific or non-specific markers...
July 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/25835176/expression-of-aberrant-cd-markers-in-acute-leukemia-a-study-of-100-cases-with-immunophenotyping-by-multiparameter-flowcytometry
#10
Anupam Sarma, Munlima Hazarika, Debabrata Das, Avdhesh Kumar Rai, Jagannath Dev Sharma, Chidananda Bhuyan, Amal Chandra Kataki
BACKGROUND: Acute leukemia is a heterogenous disease having diverse phenotypes. Immunophenotyping by flowcytometry is essential for diagnosis of myeloid and lymphoid subtypes. Aberrant phenotype incidence is controversial and dissimilar results have been reported by different groups. OBJECTIVES: Purpose of the study was to determine the incidence of aberrant phenotypes in North East Indian patients with acute leukemia. METHODS: We analysed a total of 100 cases (AML = 36, ALL = 61, MPAL = 3) by multiparametric flow cytometry using an acute panel of monoclonal antibodies (MoAbs)...
2015: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/25673609/unusual-immunophenotype-of-t-cell-large-granular-lymphocytic-leukemia-report-of-two-cases
#11
Nikhil Rabade, Dia Mansukhani, Shanaz Khodaiji, Balkrishna Padte, Abhay Bhave, Prashant Tembhare, Papagudi Ganesan Subramanian, Kunal Sehgal
Large granular lymphocytes (LGL) leukemias are commonly of the T-cell or NK-cell type. T-cell LGL leukemia is typically a disorder of mature CD3, CD8 and T-cell receptor TCR (TCR - T cell receptor)-αβ positive cytotoxic T-cells. Rare variants include TCRγδ+ variants and CD4 + TCRαβ+ cases. We report a case of each of these rare variants. An 83-year-old female presented with anemia and lymphocytosis with LGLs on peripheral smear. Six-color multiparametric flowcytometric analysis showed expression of CD3, heterogeneous CD7, dim CD2 and TCRγδ and lacked expression of CD5, TCRαβ, CD56, CD4 and CD8...
January 2015: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/25332567/congenital-leukemia
#12
Aishwarya Raj, Sewali Talukdar, Smita Das, Pabitra Kumar Gogoi, Damodar Das, Jina Bhattacharya
Congenital leukemia is a rare but a well-documented disease in which leukemic process is detected at birth or very shortly thereafter (Philip McCoy and Roy Overton, Commun Clin Cytom 22:85-88, 1995). These leukemias represent approximately 0.8 % of all childhood leukemias. We present a case of congenital acute myeloid leukemia manifesting from the very first day of birth. Diagnosis of acute myeloid leukemia was suspected by the presence of blasts in the peripheral blood smear and was confirmed on bone marrow by flowcytometry...
September 2014: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/24409408/aberrant-phenotype-in-iranian-patients-with-acute-myeloid-leukemia
#13
Mehdi Jahedi, Karim Shamsasenjan, Zohreh Sanaat, Mohammadreza Aliparasti, Shohreh Almasi, Mozhdeh Mohamadian, Babak Nejati, Amir Kamalifar, Ali Akbar Movassaghpour
PURPOSE: The aim of this study was to evaluate the incidence of aberrant phenotypes and possible prognostic value in peripheral and bone marrow blood mononuclear cells of Iranian patients with AML. METHODS: 56 cases of de novo AML (2010-2012) diagnosed by using an acute panel of monoclonal antibodies by multiparametric flowcytometry. Immunophenotyping was done on fresh bone marrow aspirate and/or peripheral blood samples using the acute panel of MoAbs is stained with Phycoerythrin (PE) /fluorescein isothiocyanate (FITC), Allophycocyanin (APC) and Peridinin-chlorophyll protein complex (perCP)...
2014: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/23932750/the-prognostic-significance-of-minimal-residual-disease-in-adult-egyptian-patients-with-precursor-acute-lymphoblastic-leukemia
#14
Mohamed A Samra, Hossam K Mahmoud, Thoraya M Abdelhamid, Nahla M El Sharkawy, Yasser H Elnahass, Mossaad Elgammal, Rafaat M Abdelfattah, Salem Eid, Fayek M Ghaleb, Azza M Kamel
BACKGROUND: Minimal residual disease (MRD) studies in adult acute lymphoblastic leukemia (ALL) give highly significant prognostic information superior to other standard criteria as age, gender and total leucocytic count (TLC) in distinguishing patients at high and low risk of relapse. OBJECTIVES: We aimed to determine the value of MRD monitoring by flowcytometry (FCM) in predicting outcome in adult Precursor ALL patients. PATIENTS AND METHODS: Bone marrow (BM) samples were analyzed by 4-color FCM collected at diagnosis and after induction therapy (MRD1) to correlate MRD positivity with disease free survival (DFS) and overall survival (OS)...
September 2013: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/23730015/flowcytometric-immunophenotypic-profile-of-acute-leukemia-mansoura-experience
#15
Dalia A Salem, Sherin M Abd El-Aziz
Acute leukemia (AL) displays characteristic patterns of antigen expression, which facilitate their identification and proper classification. The purpose of this study is to evaluate the diagnostic usefulness of commonly used immune-markers for immunophenotyping of AL and to define the best immune-markers to be used for proper diagnosis and classification of AL. Besides, to recognize the frequency of different AL subtypes and the antigen expression profile in our Egyptian patients. We retrospectively analyzed the immunophenotypic data of 164 de novo AL patients from our institution during 2009 and 2010...
June 2012: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/23575078/correlation-of-morphologic-and-cytochemical-diagnosis-with-flowcytometric-analysis-in-acute-leukemia
#16
Sushma Belurkar, Himabindu Mantravadi, Chethan Manohar, Annamma Kurien
INTRODUCTION: The classification of acute leukemias has revolutionized over the years. Immunophenotyping of acute leukemia has gained popularity because of its influence on treatment and prognosis of the disease. The various antigens expressed by the leukemic cells can be assessed by flowcytometry (FCA) and can be used in rendering specific treatment and predicting the outcome of the different types of acute leukemia. AIMS: The main aim of this study was to compare the morphologic and cytochemical diagnoses with flowcytometric diagnoses in acute leukemia and to analyze the usefulness of FCA over morphology...
January 2013: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/22733614/flt3-and-npm1-mutations-in-a-cohort-of-aml-patients-and-detection-of-a-novel-mutation-in-tyrosine-kinase-domain-of-flt3-gene-from-western-india
#17
Kanjaksha Ghosh, Suchitra Swaminathan, Manisha Madkaikar, Maya Gupta, Lily Kerketta, Baburao Vundinti
Acute myeloid leukemia (AML) is an aggressive hematological disorder characterized by the loss of ability of the hematopoietic progenitor cells to differentiate and proliferate normally leading to an accumulation of immature myeloid cells in the bone marrow. Several novel molecular genetic aberrations in FLT3 and NPM1 have been shown to have a prognostic impact in AML, particularly in those having normal karyotype. Though there is substantial amount of data on these mutations from western literature, there is surprisingly little data from Indian subcontinent on the frequency of this mutation in AML patients from India...
November 2012: Annals of Hematology
https://www.readbyqxmd.com/read/22338480/-granulocytic-sarcoma-of-the-femur-in-a-patient-with-acute-megakaryoblastic-leukaemia
#18
Nataša Čolović, Andrija Bogdanović, Ana Vidović, Maja Perunčić-Jovanović, Milica Čolović
INTRODUCTION: Granulocytic sarcoma, chloroma or myeloblastoma are observed in 3% to 7% of acute myeloid leukaemia and represents localized tumour composed of collection of immature leukaemic cells. It appears most frequently in patients with M2, M4 and M5 subtypes of acute myeloid leukaemia CASE OUTLINE: A 58-year-old female presented with pain and oedema of the right upper limb in November 2009. After two months the patinet had fracture dislocation and numerous osteolytic lesions of the right femur...
November 2011: Srpski Arhiv za Celokupno Lekarstvo
https://www.readbyqxmd.com/read/21415865/the-prognostic-significance-of-combined-expression-of-zap-70-and-cd38-in-chronic-lymphocytic-leukemia
#19
Magda Assem, Thoraya Abdel Hamid, Samah Kohla, Sonya Arsanyos
BACKGROUND: Following gene expression profiling which compared the two well established prognostic markers in CLL, ZAP-70 and CD38 with unmutated and mutated IgVH, ZAP-70 has emerged as the most promising surrogate marker for the IgVH mutation status. CD38 expression has also been suggested as a surrogate marker for the IgVH mutation status. AIM: We aimed to investigate the impact of ZAP-70 and CD38 expressions as well as their combined expressions on the treatment outcome and survival of our CLL patients...
December 2009: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/20306693/study-of-soluble-cd44-and-its-expression-by-mononuclear-cells-in-children-with-acute-lymphoblastic-leukemia-its-relation-to-prognostic-factors
#20
Mohammed Ibrahim Sayed Ahmed, Hoda Mohammed Abo El Fotoh Hassab
To measure sCD44 and its expression in ALL children before and after induction of remission (day 28) and their relation to prognostic factors. Newly diagnosed 30 ALL pediatric patients were examined for sCD44 by ELISA and CD44 expression by flowcytometry and their levels after induction of remission. We correlated them to age, sex, TLC, Hb, platelet count, blast % in PB and BM, Immunophenotyping, and LDH. CD44 expression in ALL patients at the time of diagnosis ranged from 0 - 98% with a mean +/- SD of (41...
2008: Egyptian Journal of Immunology
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