Mammary carcinoma in a mixed tumor with myeloid metaplasia component presenting leishmania spp. In a dog

• Autor(a) principal: Arenales, Alexandre
• Data de Publicação: 2020
• Outros Autores: Ferreira, Jefferson, Almeida, Ana Carolina O., Rozza, Daniella B. [UNESP], Luvizotto, Maria Cecília R. [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.24070/bjvp.1983-0246.v13i3p619-621; http://hdl.handle.net/11449/207024
• topic: Canine visceral leishmaniasis; Cytopathology; Immunohistochemistry; Mammary gland tumor

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.