Bovine cryptococcal meningoencephalitis

Cryptococcal meningitis and encephalitis is reported in a 5-year-old bull. The clinical signs included multifocal neurological deficits manifested by hypermetria, ataxia, depression, circling, impaired vision, head pressing, low head carriage, wide-based stance, and falling to the side or backwards....

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Bibliographic Details
Published inJournal of veterinary diagnostic investigation Vol. 23; no. 5; p. 1056
Main Authors Riet-Correa, Franklin, Krockenberger, Mark, Dantas, Antônio F M, Oliveira, Diego M
Format Journal Article
LanguageEnglish
Published United States 01.09.2011
Subjects
Animals
Brain - pathology
Cattle
Cattle Diseases - diagnosis
Cattle Diseases - microbiology
Cattle Diseases - pathology
Cryptococcus neoformans - classification
Cryptococcus neoformans - isolation & purification
Male
Meningitis, Cryptococcal - diagnosis
Meningitis, Cryptococcal - pathology
Meningitis, Cryptococcal - veterinary
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Summary:Cryptococcal meningitis and encephalitis is reported in a 5-year-old bull. The clinical signs included multifocal neurological deficits manifested by hypermetria, ataxia, depression, circling, impaired vision, head pressing, low head carriage, wide-based stance, and falling to the side or backwards. At necropsy, 6 cavities with a gelatinous content were observed in the brain and brain stem, and the meninges were thickened and off white. Numerous yeasts, with a nonstaining capsule, and associated mild inflammatory reaction were observed histologically. Specimens for culture were not collected at necropsy, but the identity of the yeast in tissue sections as Cryptococcus neoformans var. grubii was supported by immunohistochemistry.
ISSN:1943-4936
DOI:10.1177/1040638711416624