Table 2 Histopathological tumor characteristics
From: Prognostic impact of para-aortic lymph node metastases in non-pancreatic periampullary cancer
Variable | PALN+ | PALN– | P |
|---|---|---|---|
Patients [n] | 7 | 60 | – |
Tumor histology | |||
Distal bile duct carcinoma | 5 (71) | 30 (50) | 0.430 |
Ampullary carcinoma | 2 (29) | 25 (40) | 0.692 |
Carcinoma of duodenum | 0 | 5 (8) | 1.000 |
Tumor grade [n/(%)] | |||
G1/G2 | 2 (29) | 24 (40) | 0.697 |
G3/G4 | 5 (71) | 35 (58) | 0.692 |
Gx | 0 | 1 (2) | 1.000 |
pT | |||
T1/T2 | 2 (29) | 23 (38) | 0.704 |
T3/T4 | 5 (71) | 37 (62) | |
pN | |||
N0 | 0 | 29 (48) | 0.016 |
N1 | 7 (100) | 31 (52) | |
pM | |||
M0 | 0 | 60 (100) | |
M1 | 7 (100) | 0.001 | |
Resection status | |||
R0 | 7 (100) | 55 (92) | 1.000 |
R1 | 0 | 5 (8) | |
Tumor size [mm] (IQR) | 30 (22–35) | 20 (15–30) | 0.282 |
Median number of resected LN (IQR) | 21 (18–25) | 20 (13–25) | 0.857 |
Median number of resected PALN (IQR) | 5 (1–6) | 4 (2–6) | 0.556 |
LN ratio | |||
> 0.2 | 5 (71) | 8 (13) | 0.002 |
≤ 0.2 | 2 (29) | 52 (87) | |
PALN ratio | |||
> 0.2 | 6 (86) | 0 | 0.001 |
≤ 0.2 | 1 (14) | 60 (100) |