title: Anatomic variations in right liver living donors.
abstract: BACKGROUND
  Anatomic knowledge is crucial in right liver living donor transplantation.
  
  
  METHODS
  We reviewed radiologic and surgical findings in right liver donors. Arterial and portal anatomy was assessed in 96 donors, biliary anatomy in 77, and hepatic venous anatomy in 65.
  
  
  RESULTS
  Portal vein (PV): 86.4% had classic anatomy; 6.3% had a trifurcated PV; 7.3% had a right anterior PV taken off the left PV. Hepatic artery (HA): 70.8% had classic anatomy; 12.5% had a left HA arising from the left gastric artery; 13.5% had a right HA arising from the superior mesenteric artery; 2.1% had a double replaced left HA and right HA; and in 1.0% the common HA arose from the superior mesenteric artery. Biliary tree: 55.8% had normal anatomy; 14.3% had a trifurcated biliary anatomy; in 5.2% the right anterior bile duct and in 15.6% the right posterior bile duct opened into the left bile duct; in 2.6% the right anterior and in 6.5% the right posterior ducts opened into the common bile duct. Hepatic veins: S5 and S8 accessory hepatic veins had incidences of 43% and 49%, respectively. The incidence of S6 or S7 short hepatic vein was 38%.
  
  
  CONCLUSIONS
  Anatomic variations are common but do not contraindicate donation; surgeons should be prepared to recognize and manage them.
authors.affiliation: Recanati/Miller Transplantation Institute, Mount Sinai Hospital, One Gustave L. Levy Place, New York, NY 10029, USA.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Varotti
authors.forename: Gabriel E
authors.initials: GE
authors.lastname: Gondolesi
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Goldman
authors.forename: Michael
authors.initials: M
authors.lastname: Wayne
authors.forename: Sander S
authors.initials: SS
authors.lastname: Florman
authors.forename: Myron E
authors.initials: ME
authors.lastname: Schwartz
authors.forename: Charles M
authors.initials: CM
authors.lastname: Miller
authors.forename: Emre
authors.initials: E
authors.lastname: Sukru
mesh_terms: D000328:Adult; D017734:Bile Ducts, Extrahepatic / Q000033:anatomy & histology; D005260:Female; D006499:Hepatic Artery / Q000033:anatomy & histology; D006503:Hepatic Veins / Q000033:anatomy & histology; D006801:Humans; D008099:Liver / Q000033:anatomy & histology* / Q000098:blood supply; D016031:Liver Transplantation / Q000379:methods*; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000033:anatomy & histology; D012189:Retrospective Studies; D019737:Transplants