Recurrent chromosomal rearrangements involving breakpoints 3p21 and 19q13 in Chinese IgD multiple myeloma detected by G-banding and multicolor spectral karyotyping: A review of IgD karyotype literature

Immunoglobulin D multiple myeloma (IgD MM) is a rare subtype that accounts for 1% to 3% of MM and shows higher aggressiveness with distinctive clinical and laboratory features. However, there is little information in the literature on their karyotypes, which are mainly derived from G-banding results...

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Published in:Human pathology 2001-09, Vol.32 (9), p.1016-1020
Main Authors: Ng, Margaret H.L., Wong, Nathalie, Tsang, Kam-Sze, Cheng, Suk-Hang, Chung, Yuk-Fei, Lo, Kok-Wai
Format: Article
Language:English
Subjects:
19q13
3p21
Aged
Biological and medical sciences
Chromosome Banding - methods
Chromosome Breakage - genetics
Chromosome Fragility
Chromosome Painting - methods
Chromosomes, Human, Pair 19
Chromosomes, Human, Pair 3
Hematologic and hematopoietic diseases
Humans
Immunoglobulin D
immunoglobulin D multiple myeloma
Karyotyping - methods
Leukemias. Malignant lymphomas. Malignant reticulosis. Myelofibrosis
Male
Medical sciences
Middle Aged
Multiple Myeloma - genetics
Multiple Myeloma - immunology
Multiple Myeloma - pathology
spectral karyotyping
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Summary:Immunoglobulin D multiple myeloma (IgD MM) is a rare subtype that accounts for 1% to 3% of MM and shows higher aggressiveness with distinctive clinical and laboratory features. However, there is little information in the literature on their karyotypes, which are mainly derived from G-banding results. Our current study on 2 Chinese IgD MM thus represents the first description of cytogenetic data on this subtype based on an integrated analysis with G-banding and multicolor spectral karyotyping (SKY). Both of our cases showed some usual features of MM, as well as a few novel translocations including t(3;22), t(6;19), t(X;19) and the 3 whole-arm translocations namely t(1;6)(q10;p10), t(4;9)(q10;p10), and t(16;18)(q10;q10). We also identified recurrent chromosomal rearrangements involving breakpoints 3p21 and 19q13, which may suggest to be unique aberrations that may underline the pathogenesis of this distinctive biological MM subtype. HUM PATHOL 32:1016-1020. Copyright © 2001 by W.B. Saunders Company
ISSN:0046-8177
1532-8392
DOI:10.1053/hupa.2001.27122