Replaced right hepatic artery course. It usually gives off the cystic artery within .
Replaced right hepatic artery course. The authors found a retroportal course of the right hepatic artery when it arose from the superior mesenteric artery, aorta, celiac axis, and proximal to middle CHA in all cases. . The right hepatic artery passes upwards and turns to the right, crossing behind the common hepatic duct to enter Calot triangle 1. It usually gives off the cystic artery within Presence of an accessory or replaced right hepatic artery arising from the superior mesenteric artery, RHA and inferior mesenteric artery were noted. From our review of the current literature, and to the best of our knowledge, this is the first such published anatomical description of such an anatomic course of the RHA. Classic branching of the common hepatic artery from the celiac artery, and the proper hepatic artery into right and left hepatic arteries to supply the entire liver, is seen in 55 The right hepatic artery arises from the superior mesenteric artery (SMA), also referred to as "replaced to the SMA", in 9 to 15% of the population. As the hepatic arteries are both replaced, there is no common hepatic artery, and instead the gastroduodenal artery (blue arrow) arises directly from the celiac artery. In these cases, the artery courses posterior to the common hepatic artery and then behind the portal vein within the hepatoduodenal ligament. 2 There is a significant risk in iatrogenic injury to replace the 4 days ago · The replaced right hepatic artery is a variant of the hepatic arterial anatomy where the right hepatic artery originates from the superior mesenteric artery (SMA) instead of the common hepatic artery. Jan 1, 2025 · This article reports 2 cases of a rare variation, a replaced right hepatic artery arising directly from the celiac trunk. This anatomical variation is present in approximately 10-20% of the population. The right hepatic artery (green arrow) is centered in the hepatic hilum, and courses posterior to the main portal vein, originating from the superior mesenteric artery. 7% of cases, while a replaced left hepatic artery (LHA) stemmed from the left gastric artery in 3% of cases. Aug 14, 2025 · Variation in hepatic arterial anatomy is seen in 40-45% of people. A replaced right hepatic artery (RHA) arose from the superior mesenteric artery (SMA) in 3. The course of normal and aberrant RHA from its origin to entrance into the right lobe of the liver was traced and structures related to it were noted. Classic branching of the common hepatic artery from the celiac artery, and the proper hepatic artery into right and left hepatic arteries to supply the entire liver, is seen in 55 The most common variations from the standard include a left hepatic artery (LHA) originating from the left gastric artery, or the right hepatic artery (RHA) originating from the superior mesenteric artery (SMA) occurring at 10% and 11% frequencies in the population, respectively. It is the most common variant in hepatic arterial anatomy. A total of 19,013 patients were analyzed in our study (Table 1) [6-26]. A common hepatic artery originating from the superior mesenteric artery was not identified on preoperative imaging and was discovered intraoperatively. These are end arteries and supply the right and left halves of the liver respectively. In this configuration, the replaced right hepatic artery travels from its origin at the SMA, coursing posterior to The gastroduodenal artery (GDA), typically defined as the terminal branch of the common hepatic artery (CHA), was observed to be in its appropriate anatomic location and origin. It is imperative to conserve a good vascular supply to the liver and bile ducts after pancreaticoduodenectomy to prevent complications such as biliary fistula and hepatic ischemia. Aug 23, 2025 · Gross anatomy The proper hepatic artery bifurcates into the right and left hepatic arteries at or before reaching the porta hepatis. Our study identified the variations in the origin and course of right hepatic artery. In our review, 81% of cases displayed normal anatomy. Adequate knowledge of these variations would be of incredible help to the hepatobiliary surgeon and interventional radiologist. Right hepatic artery is subject to anatomical variation in its origin and course. Aug 14, 2025 · Variation in hepatic arterial anatomy is seen in 40-45% of people. A significant association was found between an aberrant right hepatic artery and an aberrant left hepatic artery. 32r a1ytfb la jxzh o1yj5 8mxbnkm 3natub gkz 4nsx2h vjzlbq0