We report an unusual case of leishmaniosis with the involvement of mammary glands in an old cat with what seems to be a concurrent regressive feline leukemia virus infection. Leishmania donovani complex parasites were identified for the first time in inflammatory breast fluid during a clinical recurrence manifested about 4 years after the first diagnosis of feline leishmaniosis. Combined treatment with allopurinol and meglumine antimoniate resulted in clinical cure of mammary lesion and a concurrent uveitis.
Keywords: Leishmania donovani complex; cat; feline leukemia virus; leishmaniosis; mammary glands.
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