Rare Hepatic Arterial Anatomic Variants in Patients Requiring Pancreatoduodenectomy and Review of the Literature

Table 1

Michels’ classification of hepatic arterial anatomy.

Type	Description	Percent
1	Normal	55
2	Replaced LHA from LGA	10
3	Replaced RHA from SMA	11
4	Replaced RHA and LHA	1
5	Accessory LHA	8
6	Accessory RHA	7
7	Accessory RHA and LHA	1
8	Replaced RHA and accessory LHA or replaced LHA and accessory RHA	4
9	CHA from SMA	2.5
10	CHA from LGA	0.5