| Metastases or recurrences |  | |
---|---|---|---|
 | + (Group A, n = 2) | - (Group B, n = 8) | p value |
Mean tumor size (mm) | 15.5 (5—26) | 7.63 (2—15) | 0.59 |
Tumor invasion | Â | Â | 1 |
M | 0 | 1 | Â |
SM | 2 | 5 | Â |
MP | 0 | 2 | Â |
SS | 0 | 0 | Â |
Mean Ki67 index (%) | 0.56 (0.40—0.73) | 1.55 (0.34—4.29) | 1 |