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  Indian J Med Microbiol
 

Figure 6: By rotating the probe counter-clockwise and pushing it against the anterior abdominal wall, the portal vein can be traced up from the “club-head confluence.” The portal vein can be demonstrated in a long axis, along with the hepatic artery arising from the celiac trunk. In this figure, the left portal vein is seen to extend upward and round off in its umbilical portion. Distinction between S2 and S3 is difficult in this orientation. 1: Umbilical part of left portal vein; 2: Transverse segment of left portal vein; 3: Right portal vein; 4: Portal vein trunk

Figure 6: By rotating the probe counter-clockwise and pushing it against the anterior abdominal wall, the portal vein can be traced up from the “club-head confluence.” The portal vein can be demonstrated in a long axis, along with the hepatic artery arising from the celiac trunk. In this figure, the left portal vein is seen to extend upward and round off in its umbilical portion. Distinction between S2 and S3 is difficult in this orientation. 1: Umbilical part of left portal vein; 2: Transverse segment of left portal vein; 3: Right portal vein; 4: Portal vein trunk