Renal malrotation

What it means

An abnormality of the normal developmental rotation of the kidney leading to an abnormal orientation of the kidney.

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.

Rare diseases that can present with this3

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Malrotation of the kidney