RT Book, Section
A1 Ellison, E. Christopher
A1 Zollinger, Jr., Robert M.
A1 Pawlik, Timothy M.
A1 Vaccaro, Patrick S.
A1 Bitans, Marita
A1 Baker, Anthony S.
SR Print(0)
ID 1187822304
T1 Anatomy and Resections of the Liver
T2 Zollinger’s Atlas of Surgical Operations, 11e
YR 2022
FD 2022
PB McGraw-Hill Education
PP New York, NY
SN 9781260440850
LK accesssurgery.mhmedical.com/content.aspx?aid=1187822304
RD 2024/04/23
AB The  liver  is  divided  into  eight  major  segments  (including  the  caudate  lobe),  each  with  its  own  portal  triad  consisting  of  hepatic  artery,  portal  vein,  and  bile  duct  branch.  The  right  and  left  halves  of  the  liver  are  divided  along  the  middle  scissura  defined  by  the  middle  hepatic  vein.  This  division  is  also  known  as  the  principal  line  (Cantlie’s  line),  which  extends  cephalad  and  obliquely  from  the  middle  of  the  gallbladder  fossa  to  the  center  of  the  inferior  vena  cava  (FIGURE  1,  A–A′).  The  left  hemiliver  is  further  divided  into  medial  (segment  IV)  and  lateral  sections  (segments  II  and  III)  along  the  umbilical  fissure.  The  left  lateral  section  is  further  divided  by  the  left  scissura  (marked  by  the  left  hepatic  vein)  into  a  cephalad  segment  2  and  a  caudal  segment  3  (FIGURE  2).  The  right  hemiliver  is  separated  into  the  right  anterior  section  (segments  5  and  8)  and  a  right  posterior  section  (segments  6  and  7)  based  on  the  right  scissura,  which  is  defined  by  the  right  hepatic  vein.  Each  of  these  sections  is  further  divided  into  superior  segments  (VII  and  VIII)  and  inferior  segments  (V  and  VI)  (FIGURE  2).