Prevalence of circumcaval ureters and double caudal vena cava in cats.

Objective: To determine the prevalence of circumcaval ureters and other caudal vena cava variations in cats and determine whether circumcaval ureters were associated with macroscopic evidence of ureteral obstruction.

Sample: 301 domestic cat cadavers obtained from an animal shelter.

Procedures: All cat cadavers were examined, and anatomic variations of the ureters and caudal vena cava were recorded.