The role of gonadal venography in the management of the adult with non-palpable undescended testis.

Selective gonadal venography was performed on 9 adult patients with 11 nonpalpable undescended testes. The gonad was accurately localised pre-operatively on 7 occasions. Testicular agenesis was predicted in 2 instances and strongly suggested in 2 others. Four failures were recorded, 2 on the right and 2 on the left. Accurate pre-operative localisation shortened operative time and reduced the extent of the surgical exploration. The demonstration of agenesis of the testis may obviate the need for surgery.