Abstract
Intersex is an anomaly in the reproductive system, which characterizes animals that have ambiguity in the genital system. The documented report is of a dog that presented abnormalities in the external genitalia, with the presence of a hemipenis in its vulva. The animal was submitted to hormone dosage of progesterone, testosterone and estrogen. Imaging tests such as ultrasound and X-rays were performed, with an exploratory celiotomy and histopathology being chosen as the therapeutic approach. According to the findings in the imaging exams, testicular structure was observed in the location of the ovaries, and in the x-ray images it was possible to observe the presence of underdeveloped penile bone in the hemipenis. Hormone dosage indicated significant changes in testosterone increase 2,300 pg/ml, estrogen concentrations were 8.00 pg/ml being normal and high progesterone 0.91 ng/ml. Microscopic findings in histopathology indicated testicular structure present in the ovaries, thus concluding the diagnosis of true hermaphroditism.
References
ANZUEMENDI, A.; BRAGA, F.; GARCIA, A.; BRAGA, P.; MUNAZ, V.M.; SANCHEZ-MARTIN, J.R. Agression, dominance, and affiliation: Their Relationshion White Androgem Levels and inteligence in 5-yeas-old children.hormones and behavior, 2006. Disponível em: http://www.periodicos.capes.br Acesso em:nov.2006.
ARCHER, J. Testosterona and human agression: On evolution of the Challenge Hypothesir. Neoroscience and Biobehavioral Reviews, V. 30, P. 319-345, 2006.
BEARDEN H.J. & FUQUAY J.W. 2000. Anatomical and inherited causes of reproductive failure. In: Applied animal Reproduction. 5th edn. Saddle River: Prentice Hall, pp.319-327.
CAMPBELL M. A case of male pseudohermaphroditism in a horse: Senior seminar paper. Ithaca, NY: Cornell University College of Veterinary Medicine, 2004.
DELFINI, A. et al. Pseudo-hermafroditismo masculin o em cão da raça American Pit-bull Terrier.Cienc AnimBras.v. 8, p. 333-338, 2007.
DONAHOE, P.K.; CRAWFORD, J.D.; HENDREN, W.H. True hermaphroditism: a clinical description and proposed function for the long arm of the Y chromosomes. Journal Pediatric, v. 13, p. 293-301, 1978.
GRUNERT E, BIRGEL EH, VALE WG, BIRGEL JUNIOR EH. Patologia e clínica da reprodução dos animais domésticos: ginecologia. São Paulo: Varela, 2005. 551 p. Clinics of North America Small Animal Practice, v. 36, p.573– 606, 2006.
HARE, W.C.D. Intersexuality in the dog.CanineVeterinary Journal,v.17, p.7-15,1976.
KROB, G.; BRAUN, A.; KUHNLE, U.; True hermaphroditism: geographical distyribution, clinical findings, chromosomes and gonadal histology. Europe Journal Pediatric, v. 153, p. 2-10, 1994.
LEAL, S.S.; OBA, E.; PRESTES, N.C.; VIANNA, F.P.; BEIER, S.L.; MELERO, F.H.; ZANINI, M.; MOTTA, L.S.L.S. Pseudo hermafrodita masculino canino: relato de caso. In:congresso paulista de clínicos veterinários de pequenos animais, 2., 2002. São Paulo, SP. Anais, São Paulo, SP, 2002. p.124.
MAZUR, A.; BOOT, A. Testosterone and dominance in man.Behavioural and Brain Science, V.21, p.355- 397,1998.
NEMZEK, J. A.; HOMCO, L. D.; WHEATON, L.G.; GRMAN, G. L. Cistic ovaries and hyperestrogenism in a canine female pseudohermaphrodite.Journal of American Animal Hospital Association, v. 28, p 402- 406, 1992.
NASCIMENTO EF, SANTOS RL. Patologia da reprodução dos animais domésticos. 2.ed. Rio de Janeiro: Guanabara Koogan, 2003. 137p
PAULINO, F.O.; GOLDSHIMITID, B.; SOUZA, L.M.; MENDONÇA, M.A.S. Estudo citogenético em cão pseudo hermafrodita masculino da raça Akita. Revista Brasileira de Reprodução Animal. Vol.25, p.491- 492, 2001.
ROMAGNOLI, S.; SCHLAFER, D. H. Disorders of sexual differentiation in puppies and kittens: a diagnostic and clinical approach. Veterinary Clinics of North America Small Animal Practice, v. 36, p.573– 606, 2006.
ZENTENO-RUIZ JC, KOFMAN-ALFARO S, MENDEZ JP. 46,XX sex reversal. Arch Med Res, v.32, p.559- 566, 2001.