Table 4.
Treatment modalities according to consensus guideline (n = 588).
| Grade | Depth and size | MVI/PNI | LNM | Total | Local excision | Radical resection |
|---|---|---|---|---|---|---|
| G1 | T0-1 and <1cm | / | 1(0.3%) | 376 | 369(98.1%) | 7 |
| T0-1 and 1-2cm | – | 4(8.2%) | 49 | 42(85.7%) | 7 | |
| + | 0(0%) | 1 | 1 | 0(0%) | ||
| unknown | 2(4.1%) | 49 | 48 | 1 | ||
| >2cm or T2-4 | / | 19(55.9%) | 34 | 13 | 21(61.8%) | |
| G2 | T0-1 and <1cm | / | 0(0%) | 16 | 16(100%) | 0 |
| T0-1 and 1-2cm | – | 2(18.2%) | 11 | 10(90.9%) | 1 | |
| + | 1(100%) | 1 | 0 | 1(100%) | ||
| unknown | 1(14.3%) | 7 | 6 | 1 | ||
| >2cm or T2-4 | / | 31(72.1%) | 43 | 6 | 37(86.0%) | |
| G1+G2 | T0-1 and <1cm | / | 1(0.3%) | 392 | 385(98.2%) | 7 |
| T0-1 and 1-2cm | – | 6(10.0%) | 60 | 52(86.7%) | 8 | |
| + | 1(50.0%) | 2 | 1 | 1(50.0%) | ||
| unknown | 3(5.4%) | 56 | 54 | 2 | ||
| >2cm or T2-4 | / | 50(64.9%) | 77 | 19 | 58(75.3%) |
MVI, Micro-Vascular Invasion; PNI, Peri-Neural Invasion, LNM, Lymph Node Metastasis.
Chi-square analysis was used.
Thirteen cases receiving no surgery were excluded from analysis.