Left-sided gallbladder: Its clinical significance and imaging presentations

Figure 4 Maetini et al have described three types of portal vein anomalies with the umbilical portion supplying the right anterior portion. In type A, the umbilical portion is over the right side of the Cantlie line. In type B, the umbilical portion lies on the Cantlie line. In type C, the umbilical portion arises from the left portal vein with anterior segmental branches. As the ligamentum teres moves from the type C to the type A, the gallbladder moves to the left of the ligamentum teres.