(A) Contrast-enhanced computed tomography (CT) image of the abdomen at the level of the kidneys obtained during the nephrographic phase shows that the kidneys are malrotated, with the renal hila pointing forward (arrows). No abnormality of size, shape, location, outline, or parenchymal thickness is present. (B) Contrast-enhanced CT images of the abdomen at a level lower than that of Figure A shows that the lower poles of both kidneys are joined by an isthmus, which is the bar of enhancing renal tissue crossing the spine (arrow). The ureters can be identified anterior to this isthmus (arrowheads).