Lymph Node Classification
| Area | Positive (n) | Negative (n) |
| 1, 2, 3 | 5 (14%) | 2 (8%) |
| 4 | 18 (50%) | 10 (42%) |
| 5, 6 | 2 (6%) | 4 (17%) |
| 7 | 10 (28%) | 6 (25%) |
| 8, 9 | 0 (0%) | 0 (0%) |
| 10 | 1 (3%) | 2 (8%) |
| Total | 36 (100%) | 24 (100%) |
Data are median, on per–lymph node basis. Classification is according to method of American Joint Cancer Committee and International Union Against Cancer (5).