Liver Segments  (Couinaud)

 

I) caudate/Spigel lobe

II) left posterolateral segment

III) left anterolateral segment

IVa) left superomedial segment

IVb) left inferomedial segment

V) right anteroinferior segment

VI) right posteroinferior segment

VII) right posterosuperior segment

VIII) right anterosuperior segment

 

PLANES:
right hepatic vein (VII+VI y VIII+V)
gallbladder fossa and the IVC (R y L)
the umbilical fissure (IVb y III)
the left hepatic vein (III y II)
portal vein (VII+VIII y VI+V)
 

 

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