Table 1.
Prevalence of primary cytogenetic abnormalities in multiple myeloma.
| Primary abnormalities | Tested N | Abnormality N (%) |
|---|---|---|
| IgH translocation with trisomies | 1959 | 312 (16) |
| t(11;14) | 1962 | 58 (3) |
| t(4;14) | 1961 | 60 (3) |
| t(14;16) | 1961 | 23 (1) |
| t(6;14) | 1962 | 9 (<1) |
| t(14;20) | 1962 | 6 (<1) |
| Unknown partner/del of IgH region | 1959 | 156 (8) |
| IgH translocation without trisomies | 1959 | 581 (30) |
| t(11;14) | 1962 | 315 (16) |
| t(4;14) | 1961 | 117 (6) |
| t(14;16) | 1961 | 55 (3) |
| t(6;14) | 1962 | 9 (<1) |
| t(14;20) | 1962 | 14 (<1) |
| Unknown partner/del of IgH region | 1959 | 71 (4) |
| Trisomies without IgH translocation | 1959 | 791 (40) |
del deletion, IgH immunoglobulin heavy chain locus.