Groups | Part of endometrium | Metallothionein immunoreactivity* | Â | Â | Â |
 |  | 0 | +1 | +2 | +3 |
Ovarian endometriosis (n = 19) | Glandular epithelium | 78 (15) | 22 (4) | - | - |
 | Stroma | 31 (6) | 38 (7) | 31 (6) | - |
Scar endometriosis (n = 15) | Glandular epithelium | 7 (1) | 27 (4) | 46 (7) | 20 (3) |
 | Stroma | - | 27 (4) | 27 (4) | 46 (7) |
Control group (n = 14) | Glandular epithelium | - | 28 (4) | 44 (6) | 28 (4) |
 | Stroma | 100(14) | - | - | - |