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  Indian J Med Microbiol
 

Figure 13: Schematic depiction of relevant anatomical structures to understand radial EUS imaging of the liver from first and second parts of duodenum. This image explains how portal vein and inferior vena cava-both posterior structures, are depicted on either side of the duodenum. It is also clear that the normal gallbladder and left portal vein trunk are approximately oriented at right angles on the undersurface of the liver. Rotation of the probe between these structures, can show S4, part of S1, and ligamentum teres from the duodenal bulb. The fusiform expansion of the upper inferior vena cava into the right atrium can be seen from the duodenal bulb; part of the right kidney, right adrenal gland, and posterior muscles of abdominal wall can also be seen from these positions. These structures are depicted in the following figures. 1: Right atrium; 2: Left lobe of liver; 3: Left portal vein; 4: Gallbladder; 5: Portal vein trunk; 6: Inferior vena cava

Figure 13: Schematic depiction of relevant anatomical structures to understand radial EUS imaging of the liver from first and second parts of duodenum. This image explains how portal vein and inferior vena cava-both posterior structures, are depicted on either side of the duodenum. It is also clear that the normal gallbladder and left portal vein trunk are approximately oriented at right angles on the undersurface of the liver. Rotation of the probe between these structures, can show S4, part of S1, and <i>ligamentum teres</i> from the duodenal bulb. The fusiform expansion of the upper inferior vena cava into the right atrium can be seen from the duodenal bulb; part of the right kidney, right adrenal gland, and posterior muscles of abdominal wall can also be seen from these positions. These structures are depicted in the following figures. 1: Right atrium; 2: Left lobe of liver; 3: Left portal vein; 4: Gallbladder; 5: Portal vein trunk; 6: Inferior vena cava