Fig. 2. The piled (+12 mm) model of right kidney. The followings are found on the anterior surface of the kidney: liver (superolateral), inferior vena cava and renal vein (superomedial), ascending colon (inferolateral), and the duodenum (inferomedial); On the posterior surface, we identify the followings: 12th rib (superior), latissimus dorsi (lateral), erector spinae (medial), quadratus lumborum (inferolateral), psoas major (inferomedial), and external oblique muscle (posterior).