has_part has part has part characteristic of inheres in inheres in has modifier Renal malrotation An abnormality of the normal developmental rotation of the kidney leading to an abnormal orientation of the kidney. HP:0004712 SNOMEDCT_US:49008000 UMLS:C0238210 The final kidney position in the renal fossa results from the rotation of the kidney with an orientation of the renal pelvis to the medial and the renal calyces to the lateral. Malrotation of the kidney can lead to orientation of the renal pelvis anteriorly, posteriorly and laterally. In most cases, renal malrotation does not cause any symptoms, but, hydronephrosis or stone formation can be observed as complications of renal malformation. HP:0004730 Malrotation of the kidney Abnormal rotation of the kidneys Abnormal renal morphology abnormal rotated kidney