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Table 2 Pattern of lymph node distribution (n = 662)

From: Factors predicting adequate lymph node yield in patients undergoing pancreatoduodenectomy for malignancy

Group according to JSBS/JPS

Location

Median (IQR) of examined nodes

No. (%) of patients with metastatic nodes by cancer site

Pancreatic

n = 388

Ampullary

n = 236

Bile duct

n = 38

5

Gastric lesser curve and suprapyloric

2 (1–3)

5 (1)

2 (1)

0

6

Gastric greater curve and infrapyloric

3 (1–5)

12 (2)

2 (1)

0

8

Common hepatic artery

2 (1–3)

49 (13)

6 (3)

0

9

Celiac trunk

2 (1–4)

24 (6)

4 (2)

0

12

Hepatoduodenal ligament

3 (2–5)

57 (15)

13 (6)

2 (5)

13 and 17

Pancreaticoduodenal

8 (6–12)

238 (61)

104 (44)

19 (50)

14

Superior mesenteric artery

2 (1–3)

44 (11)

6 (3)

2 (5)

16

Para-aortica

4 (2–6)

40 (10)

7 (4)

2 (5)

Overall

All stations

17 (11–25)

264 (68)

113 (48)

19 (50)

  1. Abbreviations: JSBS Japanese Society of Biliary Surgery, JPS Japan Pancreas Society, IQR interquartile range
  2. aOnly patients with para-aortic lymph node dissection (n = 178)