Creation and use of a scrotal sperm bank in aplasia of the vas deferens.

Patients with bilateral aplasia of the vas deferens have been considered sterile. In 2 such patients a segment of great saphenous vein, anastomosed to the globus major, was used to accept and store spermatozoa. Aspirations of the venous cap of the patient B at 1 and 4 months revealed numerous sperm with normal morphology and poor motility. At re-exploration of patient A, 4 months after the original venoepididymal procedure, the venous cap was found to be obliterated by scar tissue yet the epididymal tubules remained dilated. A 12-inch segment of the epididymal tubule was compressed between glass slides to obtain sperm in this patient. However, attempted insemination with this sperm was unsuccessful. Our results with the venous cap are disappointing.