Research Article Global Surgery Glob Surg, 2018 doi: 10.15761/GOS.1000175 Volume 4(1): 1-3 ISSN: 2396-7307 Arterial sources of the liver: two diferent variations with a brief review İlke BAYZİT KOÇER, Mustafa Deniz YÖRÜK, Okan BİLGE Department of Anatomy, Ege University School of Medicine, Bornova, İzmir, Turkey Abstract Aim: To defne the diferential hepatic artery variations in two cadavers during routine dissections. Materials and methods: Hepatic artery dissections, in two 10% formalin fxed cadavers from the Ege University School of Medicine Department of Anatomy, were performed. Photos were taken with digital camera and measurements were made photogrammetrically. Results: In the frst case; at the end of the common hepatic artery, the left hepatic artery was branched out as a pair. It was observed that both left hepatic arteries supply the left lobe of the liver. Te common hepatic artery continues as the right hepatic artery. Te length of the frst left hepatic artery was 15.72 mm and the second one was 18.95 mm. In the second case; a thick right hepatic artery arises from the superior mesenteric artery and acting as proper hepatic artery. Although it acts like the proper hepatic artery, it seems to supply the right lobe of the liver. Te length of the right hepatic artery was measured as 46.68 mm, the diameter was 4 mm. Te left hepatic artery originates from the common hepatic artery and divided into three branches. Two branches supply the left lobe and one branch supplies the quadrate lobe of the liver. Conclusion: Tese defned variations are useful for the planning and guide for surgical and radiological procedures of the liver transplantation, pancreas or biliary surgery. Introduction Te coeliac trunk passes almost horizontally forwards and slightly right above the pancreas and splenic vein and divided into lef gastric, common hepatic and splenic arteries. In adults the common hepatic artery (CHA) is intermediate in size when compared with the lef gastric and splenic arteries; but in later fetal and early postnatal life, it is the largest branch of the coeliac trunk [1]. Accompanied by the hepatic autonomic plexus it frst passes forwards and right, below the epiploic foramen to the upper aspect of the superior part of the duodenum [1]. When it reaches to the superior part of the duodenum, it divides into right gastroduodenal (RGDA) and proper hepatic artery. Proper hepatic artery enters to the hepatoduodenal ligament and extends to the hepatic porta [2–4]. It divides into right and lef branches to supply the corresponding lobes of the liver at the hepatic porta [5]. Right hepatic artery (RHA) supplies the right lobe and the half of the caudate lobe of the liver. It also gives cystic artery, which supplies the gall bladder. Lef hepatic artery (LHA) supplies the lef lobe, quadrate lobe and the other half of the caudate lobe of the liver [2,3]. While the classical branching pattern in these arteries is 52-80% in the literature, variations about this branching pattern are not uncommon [6]. Te most common variations are, LHA originating from the lef gastric artery and RHA originating from the superior mesenteric artery [3,6]. In addition to diferent branching patterns of the hepatic arteries, defned accessory arteries are also common. Te term accessory is used for arteries concomitant to the main artery that leads to the same region. Accessory LHA (11%) is mainly originating from the lef gastric artery or coeliac trunk [6]. However, CHA originated accessory LHA instance is relatively rare (4%) [6,7]. Due Correspondence to: Okan BİLGE, Department of Anatomy, Ege University School of Medicine, Bornova, İzmir, Turkey, E-mail: okan.bilge@ege.edu.tr Key words: Proper hepatic artery, common hepatic artery, arterial supply of liver Received: March 23, 2018; Accepted: March 29, 2018; Published: March 31, 2018 to growing interventional radiological procedures, transplantation, laparotomy or laparoscopic surgery procedures, variations of the CHA and its branches are becoming more important. Materials and methods During a routine cadaver dissection program for anatomy training in Ege University, School of Medicine, Department of Anatomy, some vascular variations of the liver were noticed in two male cadavers. Te cadavers were obtained in accordance with the laws of the country and embalmed with 10% formalin solution. Te variations were identifed according the literature and photographs were taken with a digital camera. Shootings were done at right angle to the objects with a millimetric scale next to the targeted structure. All measurements were made photogrammetrically using the “Image J” program. Case reports Case 1 During the abdominal dissection of a male cadaver, although the coeliac trunk was in classical pattern (lef gastric artery, CHA and splenic artery); the LHA was branched out as a pair at the end of the CHA, with the same level of the RGDA but to the opposite side. Both