A Case of Adult B Lymphoblastic Leukemia with ider(9)(q10)t(9;22)(q34;q11.2) and der(19)t(1;19)(q23;p13.3) / 대한진단검사의학회지
The Korean Journal of Laboratory Medicine
; : 585-590, 2010.
Article
in En
| WPRIM
| ID: wpr-108481
Responsible library:
WPRO
ABSTRACT
In B lymphoblastic leukemia/lymphoma (B-ALL/LBL), t(9;22)(q34;q11.2) and t(1;19)(q23;p13.3) are recurrent cytogenetic abnormalities. The concurrent occurrence of both abnormalities is very rare, and only 3 cases have been previously reported. Here, we report a case of adult B-ALL with ider(9)(q10)t(9;22)(q34;q11.2) and der(19)t(1;19)(q23;p13.3). A literature review revealed that ider(9) (q10)t(9;22) is a rare variant of t(9;22) with a deletion of the short arm of chromosome 9. Fifteen cases of ider(9)(q10)t(9;22) have been reported. This abnormality is specific to precursor B-lymphoid neoplasms, such as B-ALL or B-lymphoid blast phase of CML, and is associated with disease progression or short survival. The cytogenetic abnormality t(1;19) is also specific to B-ALL. In most instances of t(1;19), TCF3 is fused to PBX1; however, a few cases have identical translocations but no TCF3-PBX1 fusion, as was observed in our patient. We describe the first case of ider(9)(q10)t(9;22) in combination with TCF3-PBX1 negative t(1;19). The patient underwent imatinib therapy in addition to intensive chemotherapy, but failed to achieve remission.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Translocation, Genetic
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Chromosomes, Human, Pair 1
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Chromosomes, Human, Pair 9
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Chromosomes, Human, Pair 19
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Chromosomes, Human, Pair 22
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Bone Marrow Cells
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Precursor B-Cell Lymphoblastic Leukemia-Lymphoma
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Chromosome Deletion
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Fusion Proteins, bcr-abl
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In Situ Hybridization, Fluorescence
Limits:
Female
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Humans
Language:
En
Journal:
The Korean Journal of Laboratory Medicine
Year:
2010
Type:
Article