Crossed fused renal ectopia Sigmoid kidney 2022-04-10T14:17:46Z A type of cross fused renal ectopia where the normal side kidney is present superiorly and the direction of pelvic is medial, the kidney which crosses positioned inferiorly with direction of pelvic toward the lateral side. As kidneys fuse after complete rotation on the vertical axis, both renal pelves lie in correct orientation. See Figure 2b of PMID:23599575. S-shaped kidney Type B cross fused renal ectopia