Sex (no.) | |
 Male | 25 (59.5%) |
 Female | 17 (40.5%) |
 Median age | 59.5 yrs. (38–81) |
Imaging pattern on WB-MRI (no.) | |
 Focal | 25 (59.5%) |
 Diffuse | 5 (11.9%) |
 Focal and diffuse | 5 (11.9%) |
 Salt and pepper | 7 (16.7%) |
Heavy chain (no.) | |
 IgA | 4 (9.5%) |
 IgD | 3 (7.1%) |
 IgG | 19 (45.2%) |
 Light chain only | 16 (38.1%) |
Light chain (no.) | |
 Kappa | 22 (52.4%) |
 Lambda | 20 (47.6%) |
International staging system (no.) | |
 Stage I | 7 (16.7%) |
 Stage II | 20 (47.6%) |
 Stage III | 15 (35.7%) |
Laboratory findings | |
 Bone marrow plasma cell (%) | 39.7 ± 29.7 |
 Serum M-protein (g/dL) | 2.1 ± 2.6 |
 Urine M-protein (mg/dL) | 827.9 ± 2549.0 |
 Serum FLC ratio†| 458.9 ± 736.0 |
 Absolute FLC difference (mg/L) | 3880.7 ± 5612.6 |
 Beta-2 microglobulin (ug/mL) | 7.3 ± 8.8 |
 Albumin (g/dL) | 3.3 ± 0.7 |
 Calcium (mg/dL) | 9.3 ± 1.6 |
 Creatinine (mg/dL) | 1.7 ± 1.6 |
 Hemoglobin (g/dL) | 10.3 ± 2.1 |