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Patient characteristics.
| Number | Age, years | Sex | Tumor size, cm | Tumor stage | Pathological description |
|---|---|---|---|---|---|
| 1 | 65 | Female | 2.5×2.5×3.0 | T2N1M0 | Middle-differentiated adenocarcinoma invaded nerve, metastasis in 2/7 lymph nodes |
| 2 | 51 | Female | 2.5×2.5×2.5 | T2N2M0 | Middle-differentiated adenocarcinoma invaded nerve and Vater, metastasis in 5/11 lymph nodes |
| 3 | 69 | Female | 3.5×3.5×3.0 | T2N0M0 | Middle, low-differentiated adenocarcinoma invaded duodenal wall, no lymph node metastasis |
T, tumor; N, node; M, metastasis.
