Summary
Seventy-eight male New Zealand white rabbits were autopsied and found to have variable left extra-testicular venous anatomy. Our observations reveal that in the rabbit the left testis is drained in one of three ways, identified as either A (18%), B (30%) or C (52%) —type drainage. The right testicular vein in all cases drained directly into the inferior vena cava immediately superior to the right iliolumbar vein.
In type A drainage, the left testicular vein drained directly into the inferior vena cava at the level of the left iliolumbar vein. In type B drainage, the left testicular vein emptied into the left iliolumbar vein, which in turn drained into the inferior vena cava. In type C drainage both the left testicular and iliolumbar veins anastomosed to form a “lumbotesticular” trunk which emptied directly into the left renal vein.
These three patterns of left venous vascular anatomy in the rabbit can be explained on the basis of their embryologic development. Our observations suggest that it is the caudal segment of the left pelvic subcardinal vein and its anastomosis with the caudal cardinal complex which persist as the left testicular vein and that the more cranial segment of this vein, heretofore presumed to remain patent, atrophies to the level of the developing left renal vein.
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References
Arey LB (1966) The vascular system. In: Arey LB (ed) Developmental anatomy. Seventh ed. WB Saunders Co Philadelphia, pp 365–368
Balinsky BI (1970) Development of the mesodermal organs in vertebrates. In: Balinsky BI (ed) Introduction to embryology. WB Saunders Co Philadelphia, pp 417–482
Beddard FE (1909) On the postcaval vein and its branches in certain mammals. Proc Zool Soc Lond, p 496
Bensley BA (1938) In: Craigie EH (ed) Practical anatomy of the rabbit. P Blackiston Son and Co Philadelphia
Brown PD, Waites GM (1972) Regional blood flow in the epididymis of the rat and rabbit: effect of efferent duct ligation and orchidectomy. J Reprod Fertil 28(2):221–233
Cameron DF, Snydle FE, Ross M, Drylie D (1980) Ultrastructural alterations in the adluminal testicular compartment in men with varicocele. Fertil Steril 33:525–533
Craigie EH (1973) In: Craigie EH (ed) A laboratory guide to the anatomy of the rabbit. University of Toronto Press Toronto
Dubin L, Amelar RD (1971) Etiologic factors in 1294 consecutive cases of male infertility. Fertil Steril 22:469–474
Kaplan HM, Timmons EH (1979) In: Kaplan HM, Timmons EH (eds) The rabbit, A model for the principles of mammalian physiology and surgery. Academic Press New York
Larson LL, Foote RH, Hansel W (1974) Testicular blood flow rates in prepubertal and adult rabbits measured by 85 krypton. Proc Soc Exp Biol Med 147(1):151–153
Saypol DC (1981) Varicocele. J Androl 2:61–71
Setchell BP (1970) Testicular blood supply, lymphatic drainage, and secretion of fluid. In: Johnson AD, Gomes WR, Vandemark NL (eds) The testis: Development, anatomy and physiology. Academic Press New York, pp 101–165
Tuchmann-Duplessis H, Haegel P (1974) Development of the venous system. In: Tuchmann-Duplessis H, Haegel P (eds) Iliustrated human embryology: Organogenesis. Springer, New York, pp 126–131
Waites GM, Archer V, Langford GA (1975) Regional sensitivity of the testicular artery to noradrenaline in ram, rabbit, rat and boar. J Reprod Fertil 45:159–163
Warwick R, Williams P (1973) Angiology. In: Warwick R, Williams P (eds) Gray's Anatomy WB Saunders Co Philadelphia
Young S, Hollenberg NK (1977) Selective catheterization for magnification angiography of internal spermatic and proper hepatic arteries in rabbits. Invest Radiol 12(3):256–258
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Cameron, D.F., Snydle, F.E. & Smith, L.C. Three patterns of extra-testicular venous drainage in the rabbit. Anat Embryol 167, 103–112 (1983). https://doi.org/10.1007/BF00304604
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DOI: https://doi.org/10.1007/BF00304604