Abstract
In cases of bilateral non-palpable undescended testes in which human chorionic gonadotropin stimulation has shown the presence of testicular tissue and in cases of unilateral non-palpable undescended testes selective transfemoral gonadal venography with a modified Seldinger technique has been used for the preoperative localization of the non-palpable testis. Since the undescended testis may be located anywhere along the course of its embryologic descent, that is from the level of the renal fossa to its exit from the inguinal canal, preoperative localization will aid in the surgical management. Gonadal venography has proved to be accurate and safe, and has aided in the determination of the extent of surgical exploration in 9 children with 12 non-palpable undescended testes (6 right and 6 left).
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