| Numbers | Percent (%) |
---|---|---|
Gender | Â | Â |
 Male | 4 | 80 |
 Female | 1 | 20 |
Age at diagnosis | Â | Â |
 ≤ 60 | 2 | 40 |
 > 60 | 3 | 60 |
Tumor size (cm) | Â | Â |
 ≤ 5 | 5 | 100 |
 > 5 | 0 | 0 |
Differentiation | Â | Â |
 Well-moderate | 0 | 0 |
 Poor | 0 | 0 |
Depth of invasion | Â | Â |
 T1–T2 | 0 | 0 |
 T3–T4 | 0 | 0 |
Lymph node metastasis | Â | Â |
 No | 2 | 40 |
 Yes | 3 | 60 |
TNM stage | Â | Â |
 I–II | 2 | 40 |
 III–IV | 3 | 60 |