Anatomy of the right portal vein and right hepatic vein for anatomical minimally invasive liver resection

Our study demonstrates substantial anatomical variation in right-sided hepatic vasculature, with accessory RHVs present in nearly half of our patients. 3D CT reconstruction provides accurate preoperative vascular mapping that is essential for safe anatomical minimally invasive liver resection. Our classification system enables individualized surgical planning and facilitates the craniocaudal Glissonean approach for segment-oriented liver resection.