Table 5.
Radiographic features on X-rays, compared with Intergroup Ewing’s Sarcoma Study (IESS).
| Number of children in the study group | % in the study group (n=27) | % according to IESS (n=373) | |
|---|---|---|---|
| Soft tissue involvement | 19 | 70 | 55 |
| Bone destruction – diffuse | 16 | 59 | 72 |
| Periosteal reactions – onion bulbs | 9 | 33 | 53 |
| Periosteal reactions – spiculated | 8 | 30 | 23 |
| Soft tissue calcification | 7 | 26 | 8 |
| Sclerotic component | 5 | 19 | 30 |
| Cortical thickening | 4 | 15 | 16 |
| Cortical destruction | 4 | 15 | 18 |
| Well-delineated focus of destruction | 3 | 11 | 16 |
| Saucerisation | 3 | 11 | 4 |
| Bone expansion | 3 | 11 | 12 |
| Pathological fracture | 2 | 7 | 14 |
| Flat vertebra – vertebra plana | 1 | 4 | 0,3 |
| Cystic component | 1 | 4 | 12 |