Author/Editor		Hribernik, Marija
Title		Različice poteka in združevanja žolčnih vodov: morfološka raziskava odlitkov votlih jetrnih struktur
Type		monografija
Place		Ljubljana
Publisher		Medicinska fakulteta
Publication year		2002
Volume		str. 50
Language		slo
Abstract		The modern segmental concept of the liver with a segmental bile duct distribution is of practical importance for biliary specialists and should include information on variations of intrahepatic and extrahepatic bile ducts. The aim of this study was to find biliary variations, especially on segmental and sectional level, to determine their frequency and to try to arrange them into types. Based on results of our study we tried to support Couinaud's or Strasberg's terminology and the divison of liver to subunits according to portal vein (Couinaud's divison) or bile ducts distribution (Strasberg's division). We analyzed 51 corrosion casts of the human liver, which enabled the three-dimensional study of extrahepatic, sectional, segmental and subsegmental bile ducts, their variations in course and confluencing, and the relationship between the structures of the portal pedicle. The types of confluence and their frequency were determined separately for the left, right, right anterior sectional, right posterior sectional and common hepatic ducts. "Normal" left confluence was formed in 82% and three variations in 18%. "Normal" right confluence was formed in 75% and four variations in 25%. A complete ("normal") anterior sectional duct was present in 35% and four variations in 65%. A complete ("normal") posterior sectional duct was present in 61% and four variations in 39%. "Normal" common confluence was formed in 78% and two variations in 22%. The study showed that the biliary tree variations were quite frequent, and therefore clinically important, and that they could be arranged into several types. According to our results we supported the division of liver to segments based on bile ducts distribution and most of Strasberg's proposals for liver terminology.
Descriptors		BILE DUCTS, INTRAHEPATIC BILE DUCTS, EXTRAHEPATIC HEPATIC DUCT, COMMON CORROSION CASTING