Table 2.
Distribution of the study population according to the primary tumor site
| Site | Number (n) | Percentage (%) |
|---|---|---|
| Bone (SBP) | 977 | 57.78% |
| Axial skeleton (c41) | 831 | 49.14% |
| Appendicular skeleton (c40) | 146 | 8.63% |
| Extramedullary plasmacytoma(EMP) | 540 | 31.93% |
| Upper airway tract (Sino-nasal mouth and pharynx) (c00-14, c33-39) | 211 | 12.48% |
| Lower airway tract (c32-39) | 54 | 3.19% |
| Gastrointestinal Tract (c15- 26) | 49 | 2.9% |
| Soft tissue and connective tissue (c49) | 77 | 4.55% |
| Central nervous system (c69-72) | 49 | 3.19% |
| Lymph nodes (c27) | 25 | 1.48% |
| Skin (c44) | 20 | 1.18% |
| All other sites (c48,50,53,56,67,68,73,74) | 55 | 3.25% |
| Plasmacytoma Unspecified (P-unspecified) [Hematopoietic and reticulo-endothelial (c42), unknown (c76,80)] | 174 | 10.29% |
| Total | 1691 | 100% |