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World Journal of Surgery

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01-12-2014 | Original Scientific Report

Clinical Significance of Anatomical Variant of the Left Hepatic Artery for Perihilar Cholangiocarcinoma Applied to Right-Sided Hepatectomy

Authors: Hiroaki Shimizu, Isamu Hosokawa, Masayuki Ohtsuka, Atsushi Kato, Hideyuki Yoshitomi, Masaru Miyazaki

Published in: World Journal of Surgery | Issue 12/2014

Abstract

Background

Full understanding of the hilar anatomy is crucial for successful surgical resection of perihilar cholangiocarcinoma (PHC).

Methods

The three-dimensional positional relationship between the left hepatic artery (LHA) and the umbilical portion of the left portal vein (UP) was evaluated using multidetector-row computed tomography (CT) in 58 consecutive patients who underwent right-sided hepatectomy for Bismuth–Corlette IIIa or IV tumors. The positional relationship of the LHA related to UP was classified into the following three types: L-UP type, LHA runs into the left lateral section (LLS) from the left caudal side of the UP; R-UP type, LHA runs into the LLS from the right cranial side of the UP; and combined type, one branch of the LHA runs into the LLS from the right cranial side of the UP, and the other from the left caudal side of the UP.

Results

L-UP-type LHA was observed in 53 cases (91.4 %), R-UP type in three cases (5.2 %), and combined type in two cases (3.4 %). No cancer involvement of the LHA was seen in any cases with L-UP type. In one case with R-UP type (one of three; 33.3 %) and one case with combined type (one of two, 50 %), cancer invasion to the LHA was observed at the right side of the UP, requiring combined resection of the involved LHA.

Conclusions

R-UP-type LHA running just along the left hepatic duct may be easily involved by right-side predominant PHC when extending to the left hepatic duct. Hepatobiliary surgeons should recognize this anatomical variant and carefully evaluate the running courses of LHA to successfully perform R0 resection in right-sided hepatectomy for PHC.

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Title: Clinical Significance of Anatomical Variant of the Left Hepatic Artery for Perihilar Cholangiocarcinoma Applied to Right-Sided Hepatectomy
Authors: Hiroaki Shimizu
Isamu Hosokawa
Masayuki Ohtsuka
Atsushi Kato
Hideyuki Yoshitomi
Masaru Miyazaki
Publication date: 01-12-2014
Publisher: Springer US
Published in: World Journal of Surgery / Issue 12/2014
Print ISSN: 0364-2313
Electronic ISSN: 1432-2323
DOI: https://doi.org/10.1007/s00268-014-2715-8

At a glance: The STEP trials

Springer Medicine

Clinical Significance of Anatomical Variant of the Left Hepatic Artery for Perihilar Cholangiocarcinoma Applied to Right-Sided Hepatectomy

Abstract

Background

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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