Table 2 Clinico-pathological characteristics and sentinel lymph node (SLN) detection
Clinico-pathological characteristic | SLN detected (n = 16) | SLN not detected (n = 5) | p value |
|---|---|---|---|
Distance from anal verge | |||
<50 mm | 6 | 3 | 0.611 |
≥50 mm | 10 | 2 | |
Tumor size | |||
<45 mm | 4 | 4 | 0.047 |
≥45 mm | 12 | 1 | |
Histology | |||
Well/mod | 15 | 5 | 1.000 |
muc | 1 | 0 | |
Pathological T stage | |||
T3/4 | 12 | 2 | 0.28 |
T1/2 | 4 | 3 | |
Clinical upward lymph node metastasis | |||
Negative | 8 | 3 | 1.000 |
Positive | 8 | 2 | |
Pathological upward lymph node metastasis | |||
Negative | 8 | 3 | 1.000 |
Positive | 8 | 2 | |
Pathological LPLN metastasis status | |||
Negative | 15 | 4 | 0.429 |
Positive | 1 | 1 | |
Lymphatic invasion | |||
No | 15 | 3 | 0.128 |
Yes | 1 | 2 | |
Venous invasion | |||
No | 4 | 2 | 0.598 |
Yes | 12 | 3 | |