|  | Group A | Group B |
---|---|---|---|
N° cases |  | 26 | 68 |
Sex | M | 15 | 33 |
 | F | 11 | 35 |
Cell type | Spindle | 8 | 36 |
 | Epithelioid | 4 | 9 |
 | Mixed | 14 | 23 |
Cellularity | Low | 15 | 13 |
 | High | 11 | 55 |
Necrosis | 0 | 26 | 48 |
 | 1 | 0 | 20 |
Mitosis | 1 | 21 | 47 |
 | 2 | 5 | 21 |
Metastases | Â | 1 | 22 |
p27Kip1 (%) | Â | 9/26 (34.6%) | 7/50 (14%) |
Skp2 (%) | Â | 4/25 (16%) | 20/50 (40%) |
Jab1 (%) | Â | 16/25 (64%) | 23/48 (47.9%) |
Ki67 (%) | Â | 3/25 (12%) | 18/52 (34.6%) |