Table 2 Surgical and histopathological findings
Case No | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
Operative method | Partial jejunectomy, lymph node dissection | Partial jejunectomy, lymph node dissection | Partial jejunectomy, lymph node dissection | Partial jejunectomy, lymph node dissection | Partial jejunectomy, lymph node dissection |
Distance from Treitz ligament | 110 cm | 15 cm | 110 cm | 10 cm | 5 cm |
Surgical margin (proximal, distal) | 10 cm, 10 cm | 15 cm, 10 cm | 10 cm, 15 cm | 10 cm, 15 cm | 5 cm, 15 cm |
Operative time | 148 min | 121 min | 139 min | 178 min | 222 min |
Blood loss | 190 g | 30 g | 40 g | 85 g | 390 g |
Postoperative complications* | None | None | None | None | None |
Postoperative hospital stay | 6 days | 9 days | 14 days | 12 days | 14 days |
Tumor size**, mm | 63 × 45, circumferential | 49 × 29, circumferential | 44 × 19, circumferential | 75 × 44, circumferential | 50 × 30, circumferential |
Macroscopic classification | Type 2 | Type 3 | Type 2 | Type 3 | Type 2 |
Pathological feature | tub2 > tub1 | tub2 | por | muc, tub2, tub1, por | por > > tub1 > tub2 |
Pathological Stage (UICC 8th) | pT4, pN0 (0/37), pM0, pStage IIB | pT4, pN0 (0/12), pM0, pStage IIB | pT3, pN2 (4/7), pM0, pStage IIIB | pT3, pN1 (1/16), pM0, pStage IIIA | pT4, pN2 (8/16), pM0, pStage IIIB |
Venous invasion | Positive | Negative | Positive | Positive | Positive |
Lymphovascular invasion | Negative | Negative | Positive | Negative | Positive |
Paraneural invasion | N/A | Positive | Negative | Negative | Positive |
Resection margin | Negative | Negative | Negative | Negative | Negative |
Factors of high-risk Stage II | pT4, Venous invasion | Obstruction, pT4, Paraneural invasion | – | – | – |