Figure 2

Abnormal, highly complex, karyotypes typify de novo pure erythroid leukemia. (2a) Representative karyogram from case 4 showing a complex hyperdiploid karyotype harboring del(5q) and a 7p11.2 rearrangements, which likely represents a homogeneously staining region (hsr) (G-banding). (2b) Representative karyogram from case 5 showing a complex karyotype with a 7p11.2 rearrangement, which likely represents a homogeneously staining region (hsr) (G-banding). (2c) Representative karyogram from case 6 showing a complex hypodiploid karyotype with whole-arm rearrangement and two homogeneously staining regions (G-banding). (2d) Representative karyogram from case 8 showing a complex hypotetraploid karyotype with whole-arm rearrangement and 7p11.2 homogeneously staining region (G-banding).