Mammary carcinoma in a mixed tumor with myeloid metaplasia component presenting leishmania spp. In a dog
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Brazilian Journal of Veterinary Pathology
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Here is described a 9-years-old, intact female dog with cytopathological analysis from mammary tumors containing Leishmania spp. amastigotes in macrophages. The animal was submitted to euthanasia and necropsy was performed. Histopathological diagnosis was a mammary carcinoma in a mixed tumor, grade I, with myeloid metaplasia component containing macrophages laden with a large amount of amastigotes. For confirmation, immunohistochemistry was used in neoplastic tissue and resulted in strong positivity for Leishmania antibody. Myeloid metaplasia portion of mammary carcinoma in a mixed tumor may be, rarely, a site for diagnosis of Canine Visceral Leishmaniasis.
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Brazilian Journal of Veterinary Pathology, v. 13, n. 3, p. 619-621, 2020.
