Table 1.
Clinical and biological characteristics of the study population (N = 86)
| n (%) or mean [range] | |
|---|---|
| Tumoral involvement (N = 86) | |
| Skin | 73* (84.9) |
| Lymph nodes | 48 (55.8) |
| Spleen | 19 (22) |
| Liver | 15 (17.4) |
| Cerebrospinal fluid | 4 (4.5) |
| Eye | 3 (3.5) |
| Complete blood count (n = 79) | |
| White blood cells, ×109/L | 1 [0.8-53.8] |
| Neutrophils | 2.7 [0.02-10] |
| Eosinophils | 0.2 [0-4.1] |
| Basophils | 0.02 [0-0.2] |
| Lymphocytes | 2.1 [0.3-9.3] |
| Monocytes | 0.5 [0-3] |
| Myelemia | 0.1 [0-1.6] |
| Blasts | 5.4 [0-45] |
| Hemoglobin, g/dL | 11.2 [6.5-18.4] |
| Platelets, ×109/L | 106 [13-302] |
| Bone marrow aspirates (n = 73), % | |
| Blasts† | 64.0 [0-100] |
| Neutrophil line | 17.0 [0-66] |
| Eosinophils line | 0.8 [0-21] |
| Basophils line | 0.1 [0-3] |
| Erythroblasts | 10.0 [0-50] |
| Lymphocytes and plasma cells | 8.0 [0-48] |
| Monocytes | 1.4 [0-9] |
| Blast morphologies, %‡ | |
| Vacuoles only | 26/21 |
| Pseudopodia and vacuoles | 68/17 |
| Undifferentiated morphology | 65/7 |
| Lymphoid-like morphology | 18/68 |
| Monocytoid-like morphology | 17/6 |
| Blasts with granulations | 17/3 |
*
Including 40 cases with a single cutaneous lesion.
†
Percentage of total bone marrow cells.
‡
Number of cases presenting these characteristics/mean proportion of blast cells presenting this morphology.