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Table 1 Huang classification

From: Intrahepatic bile duct variation: MR cholangiography and implication in hepatobiliary surgery

Variant type

Site of opening of tight posterior hepatic duct (RPHD)

Huang A1

The right anterior hepatic duct (RAHD)

Huang A2

The hepatic confluence (trifurcation)

Huang A3

The left hepatic duct (LHD)

Huang A4

The main hepatic duct (MHD)

Huang A5

The cystic duct