Abstract
Injury to the duct of Luschka is associated with biliary fistula from the gallbladder bed after cholecystectomy. However, few studies have reported on the detailed anatomy. We elucidated the anatomy and frequency of the duct of Luschka A total of 128 specimens from patients who underwent right hepatectomy or more extensive right-sided liver resection between February 1992 and December 2003 were examined. Specimens were fixed in formalin, and serial sections were prepared to trace the course of the bile ducts from the subsegmental branch level. The duct of Luschka was observed in 6 (4.6%) specimens. The sites of confluence were as follows: right anterior inferior dorsal branch (2 patients), right anterior branch (2 patients), right hepatic duct (1 patient), and common hepatic duct (1 patient). The upstream end was located in the liver parenchyma of the right anterior inferior dorsal subsegment (5b) and connective tissue of the gallbladder bed in 4 and 2 specimens, respectively. The duct of Luschka never crosses the segmental (5b) border. Therefore, its upstream region may not be injured by segmentectomy or more extensive liver resection. However, it is possible to injure the duct of Luschka at the common hepatic duct, even if right-sided hepatectomy is performed, as the sites of confluence included the common hepatic duct.
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