Comparison of total lymph node (LN) yields for each LN location using the UICC TNM classification21 and the Japanese Pancreatic Society (JPS) system22
| Lymph node group | Total numbers of LNs | ||
|---|---|---|---|
| JPS (25 cases) | UICC TNM (14 cases) | Combined total | |
| PPD above/below, posterior pancreaticoduodenal, above/below ampulla of Vater; APD above/below, anterior pancreaticoduodenal, above/below ampulla of Vater; SB mesentery, small bowel mesentery. | |||
| Infrapyloric/superior | 76 | 43 | 119 |
| Portal | 48 | 35 | 92 |
| Cystic duct | 9 | ||
| PPD above | 41 | 41 | 128 |
| PPD below | 46 | ||
| Inferior | 121 | 34 | 155 |
| APD above | 15 | 26 | 66 |
| APD below | 25 | ||
| SB mesentery | 12 | 12 | 24 |