Items | Category |
---|---|
At tentative enrollment: | |
- Age at surgery | |
- Gender | Male, Female |
- Date of surgery | |
- Tumor location | C, A, T, D, S, RS |
- Scope of LN dissection* | D3, D2, D1, D0 |
- Surgical approach | Open surgery, Laparoscopic surgery |
- Interval between bowel resection and storage at freezer | <1 hour, 1–3 hours, > 3 hours |
At final enrollment: | |
- Histological type* | pap, tub1, tub2, por1/por2, muc, sig |
- Depth of tumor invasion | T1, T2, T3, T4a, T4b |
- Lymphatic invasion* | ly0, ly1, ly2, ly3 |
- Venous invasion* | v0, v1, v2, v3 |
- No. of LN examined | |
- No. of metastatic LN | |
- Degree of LN metastasis* | N1, N2, N3 |