[Hydronephrosis of the right kidney caused by retrocaval course of the ureter (author's transl)].

The genesis, diagnosis, and therapy of the retrocaval course of the ureter are described with reference to one of the author's own cases. The clinical significance of this anomaly is due to the development of a hydronephrosis. This can be corrected surgically with preservation of the organ by division of the renal pelvis, repositioning, resection of the retrocavally running ureter, and oblique end-to-end anastomosis. An enquiry as to the incidence of this condition revealed 32 retrocaval ureters at 53 West German urology departments in five years.