Table 3.
HER-2 immunohistochemical expression in correlation to chondrosarcoma patients’ clinicopathologic characteristics
| HER-2 membranous staining | |||||
|---|---|---|---|---|---|
| No membranous staining at all | Positive for membranous staining | ||||
| Count | % | Count | % | ||
| Age group | Less than 52 yrs | 10 | 50.0 | 0 | 0 |
| 52 yrs or more | 10 | 50.0 | 0 | 0 | |
| Gender | Female | 12 | 60.0 | 0 | 0 |
| Male | 8 | 40.0 | 0 | 0 | |
| Site | Axial | 10 | 50.0 | 0 | 0 |
| Extremity | 10 | 50.0 | 0 | 0 | |
| Biopsy | Excision | 13 | 65.0 | 0 | 0 |
| Incision | 7 | 35.0 | 0 | 0 | |
| Grade | I | 16 | 80.0 | 0 | 0 |
| II | 4 | 20.0 | 0 | 0 | |
| Cartilage | Focal | 6 | 30.0 | 0 | 0 |
| Wide | 14 | 70.0 | 0 | 0 | |
| Myxoid | No present | 12 | 60.0 | 0 | 0 |
| Present | 8 | 40.0 | 0 | 0 | |
| Necrosis | No | 19 | 95.0 | 0 | 0 |
| Wide areas | 1 | 5.0 | 0 | 0 | |
| Histological type | Chondrosarcoma, conventional | 14 | 70.0 | 0 | 0 |
| Mesenchymal, Chondrosarcoma | 1 | 5.0 | 0 | 0 | |
| Myxoid Chondrosarcoma | 5 | 25.0 | 0 | 0 | |