case_images: PMC10607559_01
case_images: Pseudolesion in liver segments II and III associated with aberrant left gastric vein. axial (CT) images were acquired using a four-phase liver CT protocol: (a) pre-contrast, (b) arterial phase, (c) portal venous phase, and (d) delayed phase. These images vividly illustrate the presence of the pseudolesion (arrow) within liver segments II and III. The pseudolesion, showing heightened contrast enhancement compared to the surrounding parenchyma, is a result of the third inflow drainage of the aberrant left gastric vein (ALGV) (arrowhead). The characteristic entry site and course of ALGV are accurately delineated.
case_images: jbsr-107-1-3342-g1.jpg
case_images: PMC10607559_01_jbsr-107-1-3342-g1.jpg
case_images: F1
case_images: This pseudolesion appearance was attributed to abnormal venous drainage (Figure 1).
case_images: Pseudolesion in liver segments II and III associated with aberrant left gastric vein. MRI images, including in-phase (a) and out-of-phase (b), reveal the pseudolesion (arrow) exhibiting compatibility with an area of focal fatty sparing. In the contrast-enhanced MRI, during the portal venous phase (c, d), the entry and course of ALGV (arrowhead) are demonstrated within the parenchyma, consistent with Type 1 branching.
case_images: jbsr-107-1-3342-g2.jpg
case_images: PMC10607559_01_jbsr-107-1-3342-g2.jpg
case_images: F2
case_images: In other sequences of the MRI, a distinct signal was observed within this area due to abnormal venous drainage, setting it apart from the surrounding parenchyma (Figure 2).