Predicting portal venous anomalies by left-sided gallbladder or right-sided ligamentum teres hepatis: A large scale, propensity score-matched study

Figure 3 Three-step method for identifying right-sided ligamentum teres, proposed by Yamashita etal[3], in axial or oblique transverse images. A: Identify the connection of the round ligament notch to the umbilical portion of the portal vein (UP, yellow circle); B: Set an axis (dotted line) from main portal vein to the UP; C: Identify the diverging points of the dorsal branch of the right anterior portal segment (P_A-D, blue arrow) and left lateral portal segment (P_LL, green arrow). The diverging point of P_A-D is distal to that of P_LL in liver with right-sided ligamentum teres and proximal in normal liver. P_A-D: Right anterior portal segment; P_LL: Left lateral portal segment; UP: Umbilical portion of the portal vein; MPV: Main portal vein. Citation: Lin HY, Lee RC. Is right-sided ligamentum teres hepatis always accompanied by left-sided gallbladder? Case reports and literature review. Insights Imaging 2018; 9: 955-960. Copyright ©The Author(s) 2018. Published by Springer Nature[4]. The authors have obtained the permission for figure using (Supplementary material).