| Metastases or recurrences |  | |
---|---|---|---|
 | + (Group A, n = 5) | - (Group B, n = 24) | p value |
Mean tumor size (mm) | 11.5 (3.5—27) | 7.11 (1.5—15) | 0.13 |
Tumor invasion | Â | Â | <0.01 |
M | 0 | 0 | Â |
SM | 2 | 22 | Â |
MP | 2 | 0 | Â |
SS | 1 | 0 | Â |
Un known | 0 | 2 | Â |
Mean Ki67 index (%) | 3.73 (0.38—10.44) | 1.24 (0.22—6.44) | 0.022 |