T-lymphoid extramedullary (lymphadenopathic) blast crisis in CML.
Acta Clin Belg
; 50(2): 121-5, 1995.
Article
em En
| MEDLINE
| ID: mdl-7597876
ABSTRACT
T-cells are only rarely involved in chronic myeloid leukemia. We report an unusual case of T-lymphoid extramedullary (lymphadenopathic) blast crisis in a 66-year-old patient with Philadelphia positive chronic myeloid leukemia. The lymph node morphological picture resembled that of a peripheral T-cell lymphoma. Immunohistochemical stainings showed most lymph node blasts to have T-phenotype (positivity for CD-2, CD-3 and CD-5). Flow cytometric phenotyping confirmed T-phenotype, with positivity for CD-7, CD-38 and TdT. Cytogenetic analysis of lymph node cells revealed Philadelphia chromosome with an additional chromosomal abnormality (add(6p)). The BCR-gene rearrangement in the lymph node blasts was identical to that in the bone marrow. This case adds to the growing evidence that CML may be a disorder of the common stem cell from which T-, B- and myeloid progenitors originate.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Linfócitos T
/
Leucemia Mielogênica Crônica BCR-ABL Positiva
/
Crise Blástica
Limite:
Aged
/
Humans
/
Male
Idioma:
En
Revista:
Acta Clin Belg
Ano de publicação:
1995
Tipo de documento:
Article