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  • Title: The presence of vasal vessels in men with congenital bilateral absence of the vas deferens.
    Author: Raman JD, Goldstein M.
    Journal: J Urol; 2004 Nov; 172(5 Pt 1):1941-3. PubMed ID: 15540760.
    Abstract:
    PURPOSE: We characterized spermatic cord microanatomy in men with congenital bilateral absence of the vas deferens (CBAVD) presenting for varicocelectomy. We discuss the implications of these findings for varicocele repair. MATERIALS AND METHODS: Between 1997 and 2003, 8 men with CBAVD underwent a total of 11 microsurgical subinguinal varicocelectomies at microsurgical epididymal sperm aspiration and cryopreservation. All 8 men had palpable grades II to III varicoceles and in 6 varicoceles were repaired due to painful symptomatology, while 2 had testicular hypotrophy with an abnormal hormonal profile. Three men had bilateral varicoceles repaired, while 5 underwent unilateral varicocelectomy. All patients provided a thorough history and underwent physical examination, hormonal evaluation, semen analysis, genetic testing and renal ultrasonography. RESULTS: Intraoperative microsurgical dissection confirmed dilated internal and external spermatic veins, and absence of the vas deferens in all 11 spermatic cords. Characteristic tortuous vasal vessels of normal caliber were clearly identified in all 11 (100%) of these spermatic cords between the internal and external spermatic fasciae in the location where the vas deferens is usually found. CONCLUSIONS: Despite the absence of the vas deferens normal sized, orthotopically located vasal vessels were present in 100% of the spermatic cords examined. Furthermore, the caliber of the vasal veins was sufficient to provide adequate venous return from the testis following ligation of the internal and external spermatic veins. In patients with CBAVD presenting for varicocele repair standard microsurgical varicocelectomy with ligation of all internal and external spermatic veins can be performed without the risk of testicular congestion secondary to inadequate venous drainage.
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