High-resolution real-time sonography of scrotal varicocele.

Real-time sonography of the scrotal veins was performed in 13 subjects with clinically obvious or small varicocele and in 10 normal controls. In normals, the vessels were 0.5-1.

Comparison of computed tomography with high-resolution real-time ultrasound in the localization of the impalpable undescended testis.

Localization of an undescended testis was attempted in 23 instances in 20 patients using both computed tomography (CT) and high-resolution real-time ultrasonography. The testis was identified and correctly localized 16 times by CT and 15 times by ultrasound. There was one false-negative diagnosis by CT and two by ultrasound.

The diagnosis and surgical management of vasculogenic impotence.

Thirty-two patients have been treated for organic impotence at our institution during a 16-month period. Of these patients 5 were found to have penile vascular insufficiency and underwent a femorocavernosal bypass with an autogenous saphenous vein graft. Initial results were excellent but late failures occurred.

CT in localization of impalpable cryptorchid testes.

Computed tomography was used for preoperative localization in 12 patients with undescended testes. Because three patients had bilateral involvement, 15 absent or undescended testes were studied. Surgical confirmation of the CT findings was obtained in 12 instances.

Vascular-induced erectile impotence in renal transplant recipients.

The incidence and pathogenesis of sexual dysfunction were studied in 16 male renal allograft recipients. In 9 patients with bilateral renal transplants in whom both internal iliac arteries were occluded nocturnal erections were absent and a penile arterial pulse could not be palpated. Of 7 patients with 1 renal allograft 4 demonstrated penile nocturnal tumescence and the penile pulse could be palpated in 5.