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Table 2 Variations of right colic vascular vessels

From: Variations in right colic vascular anatomy observed during laparoscopic right colectomy

Anatomic feature

n(%)

Relative spatial relationship of ICA with SMV

 ICA passing SMV anteriorly

29(50.0%)

 ICA passing SMV posteriorly

29(50.0%)

RCV drainage into superior veins

 Single or double RCV draining into GTH (one patient had double RCV draining into GTH)

37(66.1%)

 Single RCV draining into SMV

13(23.2%)

 One RCV draining into GTH and the other RCV draining into SMV

6(10.7%)

Constituent tributaries of GTH

 GCT

  RGeV, RCV

13(24.5%)

  RGeV, MCV

1(1.9%)

  RGeV, RCV, MCV

5(9.4%)

 GPT

  RGeV, PDV

5(9.4%)

 GPCT

  RGeV, PDV, RCV

14(26.4%)

  RGeV, PDV, MCV

4(7.5%)

  RGeV, PDV, double RCV

1(1.9%)

  RGeV, PDV, RCV, MCV

10(18.9%)

The distance between MCA bifurcation and the starting point

 ≤ 1 cm

8(15.7%)

 1–2 cm

34(66.7%)

 > 2 cm

9(17.6%)

MCV drainage into superior vein

 MCV draining into GTH

20(35.7%)

MCV draining into SMV

 Double RCV draining into SMV in one patient

27(48.2%)

 One MCV draining into GTH and the other into SMV

7(12.5%)

 One MCV draining into GTH and the other two into SMV

2(3.6%)

  1. GCT gastrocolic trunk; GPCT gastropancreaticocolic trunk; GPT gastropancreatic trunk; GTH gastrocolic trunk of Henle; ICA ileocolic artery; MCA middle colic artery; MCV middle colic vein; PDV pancreaticoduodenal vein; RCV right colic vein; RGeV right gastro-omental vein; SMV superior mesenteric vein