Its association with renal ectopia suggests that the process of ascent and rotation are related. abnormal renal rotation may cause partial ureteropelvic junction (UPJ) obstruction
Renal abnormalities and their developmental origin. Nat Rev Genet. 2007 Oct;8(10):791-802. PMID: 17878895 Rodriguez MM.
[…] anal, cardiac, tracheal, esophageal, renal, limb) syndrome. [4, 5, 6] Anomalies of the kidneys can occur in VATER association; the most common of these renal abnormalities