Table 2.
Refined staging scheme for resectable PDAC by recursive partitioning analysis. MS: median survival (R0: LNR=0, R1: 0<LNR<0.24, R2: 0.24≤LNR<0.45 and R3: LNR≥0.45; T1: ≤2cm, T2:>2cm and ≤4cm, T3: >4cm; head: head of pancreas, body&tail: body and tail of pancreas; RPA: recursive partitioning analysis).
| R | T | eNs | site | stage |
|---|---|---|---|---|
| R0 | T1 | Any | Body&Tail | RPA-I |
| eNs>2.5 | Head | RPA-I | ||
| eNs<2.5 | Head | RPA-III | ||
| T2 | eNs>5.5 | Any | RPA-II | |
| eNs<5.5 | Body&Tail | RPA-II | ||
| Head | RPA-III | |||
| T3 | eNs>5.5 | Any | RPA-III | |
| eNs<5.5 | Body&Tail | RPA-III | ||
| Head | RPA-IV | |||
| R1 | T1 | Any | Any | RPA-II |
| T2, T3 | eNs>9.5 | Any | RPA-III | |
| eNs<9.5 | Any | RPA-IV | ||
| R2 | T1 | Any | Any | RPA-III |
| T2, T3 | Any | Any | RPA-IV | |
| R3 | Any | Any | Any | RPA-V |