Diagnostic issues in chronic lymphocytic leukaemia (CLL)

The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic investigations. In atypical cases, these tests should be complemented with molecular genetics and/or histology to exclude other B-cell disorder...

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Published inBest practice & research. Clinical haematology Vol. 23; no. 1; pp. 3 - 20
Main Authors Matutes, Estella, Attygalle, Ayoma, Wotherspoon, Andrew, Catovsky, Daniel
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier Ltd 01.03.2010
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ISSN1521-6926
1532-1924
1532-1924
DOI10.1016/j.beha.2010.01.001

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Abstract The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic investigations. In atypical cases, these tests should be complemented with molecular genetics and/or histology to exclude other B-cell disorders of small lymphocytes. Morphologically, CLL can be classified into typical and atypical. Immunophenotyping is the only method that can establish or confirm the diagnosis as CLL lymphocytes have a distinct immunophenotypic signature. A scoring system compounding the results with a set of markers allows firming up the diagnosis. Other immunological markers such as CD38 and ZAP-70 have an important prognostic impact. Fluorescence in situ hybridization (FISH) analysis, chiefly by detecting 17p ( TP53 locus) and 11q ( ATM) deletions and mutational status of the IgVH gene, also provides prognostic information and may determine the type of therapy. In atypical CLL, histology and/or molecular genetics may be required to exclude other B-cell disorders.
AbstractList The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic investigations. In atypical cases, these tests should be complemented with molecular genetics and/or histology to exclude other B-cell disorders of small lymphocytes. Morphologically, CLL can be classified into typical and atypical. Immunophenotyping is the only method that can establish or confirm the diagnosis as CLL lymphocytes have a distinct immunophenotypic signature. A scoring system compounding the results with a set of markers allows firming up the diagnosis. Other immunological markers such as CD38 and ZAP-70 have an important prognostic impact. Fluorescence in situ hybridization (FISH) analysis, chiefly by detecting 17p ( TP53 locus) and 11q ( ATM ) deletions and mutational status of the IgVH gene, also provides prognostic information and may determine the type of therapy. In atypical CLL, histology and/or molecular genetics may be required to exclude other B-cell disorders.
The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic investigations. In atypical cases, these tests should be complemented with molecular genetics and/or histology to exclude other B-cell disorders of small lymphocytes. Morphologically, CLL can be classified into typical and atypical. Immunophenotyping is the only method that can establish or confirm the diagnosis as CLL lymphocytes have a distinct immunophenotypic signature. A scoring system compounding the results with a set of markers allows firming up the diagnosis. Other immunological markers such as CD38 and ZAP-70 have an important prognostic impact. Fluorescence in situ hybridization (FISH) analysis, chiefly by detecting 17p ( TP53 locus) and 11q ( ATM) deletions and mutational status of the IgVH gene, also provides prognostic information and may determine the type of therapy. In atypical CLL, histology and/or molecular genetics may be required to exclude other B-cell disorders.
The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic investigations. In atypical cases, these tests should be complemented with molecular genetics and/or histology to exclude other B-cell disorders of small lymphocytes. Morphologically, CLL can be classified into typical and atypical. Immunophenotyping is the only method that can establish or confirm the diagnosis as CLL lymphocytes have a distinct immunophenotypic signature. A scoring system compounding the results with a set of markers allows firming up the diagnosis. Other immunological markers such as CD38 and ZAP-70 have an important prognostic impact. Fluorescence in situ hybridization (FISH) analysis, chiefly by detecting 17p (TP53 locus) and 11q (ATM) deletions and mutational status of the IgVH gene, also provides prognostic information and may determine the type of therapy. In atypical CLL, histology and/or molecular genetics may be required to exclude other B-cell disorders.The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic investigations. In atypical cases, these tests should be complemented with molecular genetics and/or histology to exclude other B-cell disorders of small lymphocytes. Morphologically, CLL can be classified into typical and atypical. Immunophenotyping is the only method that can establish or confirm the diagnosis as CLL lymphocytes have a distinct immunophenotypic signature. A scoring system compounding the results with a set of markers allows firming up the diagnosis. Other immunological markers such as CD38 and ZAP-70 have an important prognostic impact. Fluorescence in situ hybridization (FISH) analysis, chiefly by detecting 17p (TP53 locus) and 11q (ATM) deletions and mutational status of the IgVH gene, also provides prognostic information and may determine the type of therapy. In atypical CLL, histology and/or molecular genetics may be required to exclude other B-cell disorders.
Author Matutes, Estella
Catovsky, Daniel
Wotherspoon, Andrew
Attygalle, Ayoma
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Issue 1
Keywords CLL
Immunophenotype
FL
IgVH
SLL
McAb
NHL
MBL
EBV
Diagnosis
SmIg
CD
Histology
SMZL
HCL-V
CLL/PL
BCR
HCL
B-PLL
NCI
MCL
FISH
IWCLL
Atypical
ATM
PCR
Cluster of differentiation
Monoclonal B-cell lymphocytosis
Epstein Barr virus
Monoclonal antibody
B-cell receptor
Immunoglobulin variable region of the heavy chain
Chronic lymphocytic leukaemia
Fluorescence in situ hybridization
National Cancer Institute
B-cell prolymphocytic leukaemia
Hairy cell leukaemia-variant
mantle-cell lymphoma
Non-Hodgkin's lymphoma
CLL with increased prolymphocytes
International working CLL
Polymerase chain reaction
Small lymphocytic lymphoma
Splenic marginal zone lymphoma
Ataxia telangiectasia mutated
Hairy cell leukaemia
Follicular lymphoma
Surface immunoglobulin
Language English
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Snippet The diagnosis of chronic lymphocytic leukaemia (CLL) is based on clinical and laboratory features. Morphology and immunophenotype are the initial diagnostic...
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SubjectTerms Atypical
CLL
Diagnosis
FISH
Hematology, Oncology and Palliative Medicine
Histology
Humans
Immunophenotype
Immunophenotyping
Leukemia, Lymphocytic, Chronic, B-Cell - diagnosis
Leukemia, Lymphocytic, Chronic, B-Cell - genetics
MBL
Title Diagnostic issues in chronic lymphocytic leukaemia (CLL)
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https://dx.doi.org/10.1016/j.beha.2010.01.001
https://www.ncbi.nlm.nih.gov/pubmed/20620967
https://www.proquest.com/docview/733980466
Volume 23
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