Table 2.
The distribution of primary anatomic sites in PLB.
| Primary anatomic sites (ICD site code) | Number | Percentage |
|---|---|---|
| Vertebral column (C41.2) | 767 | 29.98% |
| Long bones of lower limb and associated joints (C40.2) | 597 | 23.34% |
| Pelvic bones, sacrum, coccyx and associated joints (C41.4) | 356 | 13.92% |
| Long bones of upper limb, scapula, and associated joints (C40.0) | 258 | 10.09% |
| Bone, NOS (C41.9) | 181 | 7.08% |
| Bones of skull and face and associated joints (C41.0) | 130 | 5.08% |
| Rib, sternum, clavicle and associated joints (C41.3) | 104 | 4.07% |
| Mandible (C41.1) | 93 | 3.64% |
| Short bones of lower limb and associated joints (C40.3) | 41 | 1.60% |
| Overlap bones, joints, and cartilage (C41.8) | 19 | 0.74% |
| Bone of limb, NOS (C40.9) | 9 | 0.35% |
| Overlap of bones, joints, and cartilage of limbs (C40.8) | 3 | 0.12% |
| Total patients with PLB | 2558 | 100.00% |
ICD, International Classification of Diseases; NOS, not otherwise specified; PLB, primary lymphoma of bone.