Table 3 Diagnosis and diagnostic work-up of children with a primary malignant bone tumor
Variable | Frequency | Percent (%) |
|---|---|---|
WBC (*109/L) (median + IQR) | 10 | 10 ± 9.3 |
Neutrophil (%) | 60.4 | 60.4 ± 74.3 |
Platelets (*109/L) (median + IQR) | 410 | 410 ± 216 |
Radiologic investigation(n = 95) | ||
 bone MRI | 51 | 53.7 |
 bone x-ray | 38 | 40 |
 bone CT-scan | 33 | 34.7 |
Metastatic workup | ||
 Yes | 93 | 97.9 |
 No | 2 | 2.1 |
Types of metastatic workup(n = 93) | ||
 Chest CT scan | 79 | 83.2 |
 Finding of metastasis | 32 | 40.5 |
 Chest X-ray | 56 | 58.9 |
 The finding of metastasis in X-ray | 10 | 17.9 |
 Abdominal Ultrasound | 44 | 46.3 |
 Finding of metastasis | 3 | 6.8 |
 Abdominal CT-scan | 24 | 25.3 |
 Finding metastasis | 7 | 29.2 |
 Bone marrow biopsy | 23 | 71.8 |
 Finding of metastasis | 5 | 21.7 |
 Localized Disease at Diagnosis | 54 | 58.1 |
 Metastatic Disease at Diagnosis | 39 | 41.9 |
 Osteosarcoma localized | 37 | 58.7 |
 Metastasis | 24 | 38.1 |
 Ewing sarcoma localized | 17 | 53.1 |
 Metastasis | 15 | 46.9 |