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Table 3 Metastatic rates of subgroups of lymph nodes of pancreatic head cancer (paraaortic lymph nodes not included)

From: Proposing the lymphatic target volume for elective radiation therapy for pancreatic cancer: a pooled analysis of clinical evidence

No. Study 8a 8p 11p 11d 12a 12p 12b 13a 13b 14a 14b 14c 14d 17a 17b
3         40/76 35/76 13/76 16/76 5/76 9/76 22/76 13/76
6         22/42 19/42 8/42 11/42 3/42 6/42 13/42 9/42
2 523/3695 205/3030 121/3229 0/4910 180/3887 257/3808 484/3784 1490/2830 1098/3085      764/3282 760/3342
12         22/44 18/44 8/44 9/44 3/44 6/44 11/44 7/44
17         25/49 23/49 10/49 11/49 3/49 7/49 16/49 11/49
Metastatic rate% 14.2 6.8 3.7 0 4.6 6.7 12.8 52.6 36.2 18.5 22.3 6.6 13.3 23.6 22.5
  1. Abbreviations:
  2. 8a = lymph nodes of the anterior-superior region (group 8)
  3. 8p = lymph nodes of the posterior region (group 8)
  4. 11p = proximal splenic lymph nodes (group 11)
  5. 11d = distal splenic lymph nodes (group 11)
  6. 12a = lymph nodes around the proper hepatic artery (group 12)
  7. 12p = lymph nodes around the portal vein (group 12)
  8. 12b = lymph nodes around the bile duct (group 12)
  9. 13a = lymph nodes above the papilla of Vater (group 13)
  10. 13b = lymph nodes below the papilla of Vater (group 13)
  11. 14a = lymph nodes at the root of the superior mesenteric artery (group 14)
  12. 14b = lymph nodes at the root of the inferior pancreatoduodenal artery (group 14)
  13. 14c = lymph nodes at the root of the medial colic artery (group 14)
  14. 14d = lymph nodes at the root of the intestinal arteries (group 14)
  15. 17a = lymph nodes above the papilla of Vater (group 17)
  16. 17b = lymph nodes below the papilla of Vater (group 17)