Table 2. Pathological characteristics.
| Patients without LN invasion (N=149) | Patients with LN micrometastases (N=18) | Patients with LN macrometastases (N=20) | P | |
|---|---|---|---|---|
|
Final histologya | ||||
| Endometrioid | 135 (91%) | 16 (89%) | 15 (75%) | |
| Clear-cell | 10 (7%) | 1 (6%) | 2 (10%) | 0.13 |
| Papillary serous |
4 (3%) |
1 (6%) |
3 (15%) |
|
|
Final gradea | ||||
| 1 | 80 (54%) | 9 (50%) | 2 (10%) | |
| 2 | 50 (34%) | 6 (33%) | 7 (35%) | <0.0001 |
| 3 |
19 (13%) |
3 (17%) |
11 (55%) |
|
|
Primary tumour extensiona | ||||
| Endometrium | 25 (17%) | 1 (6%) | 2 (10%) | |
| ⩽50% Myometrial invasion | 65 (44%) | 7 (39%) | 4 (20%) | 0.05 |
| >50% Myometrial invasion | 52 (35%) | 10 (56%) | 14 (70%) | |
| Cervical stromal invasion |
7 (5%) |
0 |
0 |
|
| Lymphovascular space invasion |
28/141 (20%) |
7/17 (41%) |
13/19 (68%) |
<0.0001 |
| Tumour size (mm) | 32.1±17.0 | 37.7±15.8 | 46.0±20.2 | 0.02 |
Abbreviation: LN=lymph node.
a
On the hysterectomy specimen.