This structure often protrudes from the vulva in affected dogs. Close up of a penis-like structure of a dog affected with XXSR showing hypospadias. A catheter has been placed in the urethra. Carriers look like normal females or normal males. When this is done, either one ovary and an ovotestis, two ovotestes, or two testes are usually found.
Arrow indicates testis tissue in the center of the ovotestis.
Arrowhead indicates ovarian tissue with follicles developing on the external surface of the ovotestis. C. Higher power magnification of the testis portion of the ovotestis. When only testes are found, they are usually in the abdomen. All affected dogs have a complete uterus. Many have an epididymis adjacent to the ovotestis or testis.