Evidence map›Paper›PMID 26464726›Full record

ArticleInternational journal of clinical and experimental pathology2015

The t(14;18)(q32;q21) with extra MYC signal - is it a gray zone lymphoma?

Qin A Chang, Abdulraheem Qasem, Sheshadri Madhusudhana, Alexey Glazyrin

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In one paragraph

Article in International journal of clinical and experimental pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Qin A ChangDepartment of Pathology, Truman Medical Center, School of Medicine, University of Missouri-Kansas Kansas, MO, USA.
Abdulraheem QasemDepartment of Hematology/Oncology, Truman Medical Center, School of Medicine, University of Missouri-Kansas Kansas, MO, USA.
Sheshadri MadhusudhanaDepartment of Hematology/Oncology, Truman Medical Center, School of Medicine, University of Missouri-Kansas Kansas, MO, USA.
Alexey GlazyrinDepartment of Pathology, Truman Medical Center, School of Medicine, University of Missouri-Kansas Kansas, MO, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Double-hit lymphomas (DHL) are defined as B-cell lymphoma with a chromosomal breakpoint affecting the MYC/8q24 locus in combination with rearrangement at (14;18)(q32;q21). We recently observed three cases of B-cell lymphoma with an extra intact MYC signal in association with the t(14;18)(q32;q21) translocation. The impact of an extra copy of MYC to the clinical course and prognosis of one patient with Diffuse Large B Cell Lymphoma (DLBCL) and two patients with Follicular Lymphoma (FL) was evaluated. Flow cytometry in all cases demonstrated lambda- or kappa-light chain restricted CD20 and CD10 positive neoplastic B cells. FISH analysis was negative for MYC gene rearrangement but demonstrated an extra copy of intact MYC. Tissue sections displayed typical starry sky "gray zone" lymphoma morphology in case of DLBCL and FL morphology in cases 2 and 3, with high Ki67 labeling in all three cases. All patients responded well to initial chemotherapy although displayed variant outcome after initial remission. The patient with DLBCL deceased within a year of diagnosis while the other two patients with FL showed much better overall survival. Our limited experience showed that additional copy of intact MYC may be equivalent to "classic" DHL on the background of DLBCL with additional cytogenetic abnormalities, however isolated t(14;18)(q32;q21) translocation in combination with additional copy of intact MYC may demonstrate histology and clinical outcome more comparable with "classic" low grade follicular lymphoma, albeit with more aggressive morphology.

Indexed as

Chromosomes, Human, Pair 14Chromosomes, Human, Pair 18AgedFlow CytometryGene RearrangementGenes, mycHumansImmunohistochemistryImmunophenotypingIn Situ Hybridization, FluorescenceLymphoma, B-CellMaleMiddle AgedamplificationDouble hit lymphomafollicular lymphomaMYCtranslocation

Identifiers

PMID26464726
PMCPMC4583958

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