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Fig. 1 | BMC Surgery

Fig. 1

From: Surgical anatomy of the right hepatic artery in Rouviere’s sulcus evaluated by preoperative multidetector-row CT images

Fig. 1

Arterial anatomy of SA/SSA from RHA around the RS. a typical form: RHA bifurcates into Aant and Apost, and then ramifies into the SA/SSA as a tertiary bifurcation. b atypical form: SA/SSA branched off independently before the main bifurcation of Aant and Apost. (a-1/b-1) infraportal course: Apost runs caudally to RPV. (a-2/b-2) supraportal course: Apost, including posterior SA/SSA, run cranially to RPV. The atypical form was observed in 43 cases. 15 cases of atypical form showed prior branched posterior SA/SSA following a supraportal type, while the other posterior branches were the infraportal type, defined as “partially supraportal type” (b-2)

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