Abstract
ABSTRACT This is a case report on a nulliparous Toggenbourg goat, one year of age that, after being submitted to superovulation with human menopause gonadotrophin, presented mammogenesis and lactogenesis. Both neoformed mammary glands were naturally infected with β-hemolytic Staphylococcus aureus and evolved clinically in different forms. The left half evolved to acute catarrhal mastitis that responded positively to treatment using sodium cloxacillin, whereas right mammary gland evolved to phlegmonous gangrenous mastitis, with teat loss. The mammary tissue remaining had to be surgically removed. The present report emphasizes that multi-tissue effect should not be ignored when hormonal therapy is used. The potential risk of induced mammogenesis in nulliparous animals and the nosological diversity that mastitis may present should be considered, once the etiological agent and host were the same, and different inflammatory responses were observed in the two halves.
Highlights
MASTITE EM CABRA NULÍPARA APÓS A INDUÇÃO DA MAMOGÊNESE
The mammary gland starts to develop in puberty, stimulated by the estro cycle progesterone and estrogen, and mammogenesis effect of prolactin and growth hormone (GH) (SENGER, 2003)
Its greater development occurs during pregnancy, mainly in the last trimester, when mammary parenchyma is transformed in structures filled by alveoli that synthesize and actively secrete milk (SWENSON;REECE, 1996; R EECE, 1997; SEJRSEN, 1999; KNIGHT, 2001)
Summary
MASTITE EM CABRA NULÍPARA APÓS A INDUÇÃO DA MAMOGÊNESE. Relata-se o caso de uma fêmea caprina nulípara da raça Toggembourg, com 1 ano de idade, que após ser submetida à superovulação com gonadotrofina da menopausa humana (hMG) apresentou mamogênese e lactogênese. O presente relato salienta a importância de não desconsiderar o efeito multitecidual que a terapia hormonal apresenta, o potencial risco da mamogênese induzida em nulíparas e a diversidade nosológica que a mastite pode apresentar, uma vez que o agente etiológico e o hospedeiro eram os mesmos, com resposta inflamatória distinta das mamas. The mammary gland is a complex tissue that varies according to its development, secretion and involution.
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