Bile ducts of hilus hepatis , right or left lobe , medial segment and anterior right segment can be exposed and incised through hilus hepatis or quadrate lobe . all major intrahepatic bile ducts of the right lobe can be exposed and incised by an approach cutting through the liver parenchyma on its diaphragmatic surface 經(jīng)肝門區(qū)或肝方葉可以顯露和切開肝門膽管、左右肝管和左內(nèi)葉、右前葉膽管,經(jīng)肝膈面切開肝實質(zhì)進(jìn)路,可以顯露和切開右肝內(nèi)各葉段膽管。