Histopatologic Characteristics, Staging, and Postoperative Therapy of the 40 Patients
| Characteristic | Data |
| Tumor diameter (mm) | |
| Median | 50 (range, 30–90) |
| 26–40 | 17 (42.5) |
| >40 | 23 (57.5) |
| Histologic grade | |
| G1 | 2 (5) |
| G2 | 32 (80) |
| G3 | 6 (15) |
| Depth of stromal invasion (mm) | |
| Median | 9 (range, 4–20) |
| 1–4 | 3 |
| >5 | 34 |
| Unknown | 3 |
| Resection margin status | |
| R0 | 32 (80) |
| R1 | 4 (10) |
| VIN | 4 (10) |
| Lymph-vascular space invasion | |
| Yes | 19 (47.5) |
| No | 21 (52.5) |
| Metastatic lymph nodes | |
| Yes | 23 (57.5) |
| No | 17 (42.5) |
| Extracapsular invasion of metastatic lymph nodes | |
| Yes | 12 (52) |
| No | 11 (48) |
| Median no. of removed lymph nodes | 17 (range, 0–28) |
| Median no. of metastatic lymph nodes | 1 (range, 0–7) |
| Median size of lymph node metastases (mm) | 13 (range, 1–27) |
| FIGO stage | |
| IB | 5 (12.5) |
| II | 12 (30) |
| III | 18 (45) |
| IVA | 5 (12.5) |
| Adjuvant therapy | |
| Yes | 27 (67.5) |
| No | 13 (32.5) |
G1 = well differentiated; G2 = moderately differentiated; G3 = poorly differentiated; R0 = no tumor; R1 = microscopic tumor; VIN = vulvar intraepithelial neoplasia; FIGO = International Federation of Gynecology and Obstetrics.
Data are n followed by percentage in parentheses, unless otherwise specified.