A rare type of hepatobiliary arterial system in man – presence of accessory left and replaced right hepatic arteries and double cystic arteries

Jelev, Lazar; Angelov, Alexander Krasimirov

doi:10.2399/ana.15.010

Cited by 3 publications

(5 citation statements)

References 15 publications

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“…12 While several other authors depicted absence of this pattern. 14,22 Type VII in which aLHA from LGA and aRHA from SMA was second common variation in current study and was observed in 21.43%, while Surekha et al reported its occurrence in 12.76% and Nemeth in 2%. 12,14 Conversely, majority of authors declared nonexistence of type VII variant.…”

Section: Discussionsupporting

confidence: 46%

“…13,19 As branching of arteries are conquered in embryonic life, none of the cases showed presence of type VIII pattern in this study and so majority of authors. 12,13,20,22 In contrast Nemeth reported the occurrence of type VIII configuration in 4%. 14 With increase in number of liver transplantation, the understanding on anomalous hepatic artery anatomy become crucial and pre-operative imaging is mandatory.…”

Section: Discussionmentioning

confidence: 94%

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A Study on Variations of Branching Pattern of Hepatic Arteries with its Clinical Significance

Mansur

Karki

Shrestha

et al. 2020

Kathmandu Univ. Med. J.

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Background Variation of hepatic artery is very frequent and may predispose the patients to inadvertent injury to the vessels during hepato-billiary surgery. With the advancement of new diagnostic, therapeutic and operative techniques for abdomen, the sound knowledge of variations of hepatic arterial system have become increasingly important for dealing clinicians, surgeons and interventional radiologists. Objective To study the variations of hepatic artery and to evaluate the possible clinical significances. Method A total of 104 images of abdominal computed tomography scans were used for this study. The origin and branching patterns of hepatic artery were recorded. After collecting the data, statistical analysis was done. Result The present study concluded that normal branching pattern of hepatic artery was seen in 86.54% cases, whereas 13.46% cases showed different types of variations. Among them, type II and IV pattern were seen in 0.96% in each, type VI in 1.93%, type VII in 2.87% and the most common variation type IX was seen in 3.85%. There were not a single case of type III, V, VIII and X recorded in this study. Addition to these, one of the variants was common hepatic artery originating from abdominal aorta, was seen in 1.93% of cases while the other variant is unnamed artery arising from superior mesenteric artery, was seen in 0.96% of cases. Conclusion The knowledge of the branching pattern of hepatic artery might be helpful for clinicians to the better understanding of the arterial supply of the liver and may reduce the risk of complications.

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Section: Discussionsupporting

confidence: 46%

Section: Discussionmentioning

confidence: 94%

A Study on Variations of Branching Pattern of Hepatic Arteries with its Clinical Significance

Mansur

Karki

Shrestha

et al. 2020

Kathmandu Univ. Med. J.

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“…One of the most important CHA variations is rRHA arising from SMA. [2][3][4]10] The case has been identified as Type 3 in classifications of Michels [3] and Hiatt et al [4] According to data obtained from dissection studies, liver transplantations and angiographies, the incidence of rRHA varies between 3.5-18%. [2] Deviations from the normal pattern of embryological development constitute the cause of arterial variations.…”

Section: Discussionmentioning

confidence: 99%

Replaced right hepatic artery and its segmental distribution

Beğer¹,

Elvan²,

Kurtoğlu³

2015

Anatomy

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A case of replaced right hepatic artery arising from the superior mesenteric artery is presented with its segmental distribution and the morphometric features. The case was encountered in a 66-year-old formalin-fixed male cadaver during dissection for undergraduate lab education. Length and diameter of the replaced right hepatic artery were measured 63.10 mm and 3.6 mm, respectively. The replaced right hepatic artery coursed posterior to the portal vein initially, and then lateral to it. One of its branches entered into liver segments V and VIII, and the other entered into segments VI and VII. Left hepatic artery arose from the common hepatic artery and gave the middle hepatic artery 11.9 mm distal to its origin. Length and diameter of the middle hepatic artery were measured 30.2 mm and 1.2 mm, respectively. After giving a small branch to caudate lobe, the middle hepatic artery reached the quadrate lobe. The diameter and segmental distribution of replaced right hepatic artery was similar to the normal right hepatic artery described in earlier studies. The middle hepatic artery arose from the left hepatic artery at a substantial distance from the liver tissue in the presence of a replaced right hepatic artery. This is of clinical significance in liver transplantations as the arterial supply of segment IV is from the middle segmental artery.

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“…Many types of vascular variations have been reported for the liver at both dissection laboratories and radiological imaging [2]. The extra blood vessel that supplies the liver lobes is called the accessory hepatic artery (AcH), whereas the vessel risen from an unusual origin is called the replaced hepatic artery (RpH) [3]. It is observed that the usual presentation of the hepatic arterial vasculature was the common hepatic artery which is arising from the celiac axis.…”

Section: Introductionmentioning

confidence: 99%

“…Type VIII has replaced right hepatic artery in combination with accessory left hepatic or vice versa. In types IX and X, the whole hepatic artery arises from the superior mesenteric artery (SMA) or left gastric artery (LGA) [2,3,5,7]. Description of a rare variation was reported in which the common hepatic artery gave a branch before the origin of the gastroduodenal artery [7].…”

Section: Introductionmentioning

confidence: 99%

Variations of Arterial Supply of the Liver: C.T. Angiographic Study Among Sudanese Adults

et al. 2022

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Hepatobiliary surgery through laparoscopic approach is becoming a routine. Knowledge of extrahepatic arterial tree is essential for surgical and imaging procedures. Anatomical complexity is expected since the liver is developed by mergingof lobules with its separate blood supply. This makes a wide range of variations in the pattern of vascular arrangement and so reinforces the need for an accurate understanding of full spectrum of variations. This study aimed to investigate the variations in origin and distribution of extrahepatic arterial supply. Fifty volunteers (32 males and 18 females) aged 20–70 years were randomly recruited from the department of CT scan in Al Amal Hospital, Khartoum North, Sudan. The patients were already candidates for CT angiography with contrast for conditions other than hepatobiliary diseases. The reported data is related to those who accepted to participate in the study. Patients with history of hepatobiliary disease were excluded. 3D views of the scans were treated and the extrahepatic arterial tree was traced in a computer-based software. Key findings suggest that Michel’s classification was considered the standard template for description – 76% of them showed Michel’s type I classification. Types III and V constituted about 2%. About 4% of the cases were represented by types VI and IX. Other types of variations constituted about 12%. To conclude, although type I classification which describes the textbook pattern of hepatic artery distribution was significantly detected among the Sudanese population, other variants were to be considered since they are related to major arteries like aorta and superior mesenteric.

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A rare type of hepatobiliary arterial system in man – presence of accessory left and replaced right hepatic arteries and double cystic arteries

Cited by 3 publications

References 15 publications

A Study on Variations of Branching Pattern of Hepatic Arteries with its Clinical Significance

A Study on Variations of Branching Pattern of Hepatic Arteries with its Clinical Significance

Replaced right hepatic artery and its segmental distribution

Variations of Arterial Supply of the Liver: C.T. Angiographic Study Among Sudanese Adults

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