José C Oliveira-Filho

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Records from 6,706 necropsy examinations of cattle performed over a 45-year period were surveyed and 586 cases of neoplasia were identified. The organ system most frequently affected by neoplastic disease (n=139 cases) was the alimentary tract. This finding was attributed to a high incidence of squamous cell carcinoma of the upper alimentary tract(More)
An outbreak of an acute disease in buffalo (Bubalus bubalis) caused by the ingestion of Baccharis megapotamica var. weirii occurred in the southern region of Brazil. Ten out of 50 buffalo died 24-48 hr after being introduced into a pasture containing abundant amounts of the plant. Factors influencing the ingestion of the plant and consequent toxicosis(More)
Pythiosis is reported for the first time in a goat. The affected goat had daily access to an aquatic environment and had developed an ulcerative lesion on the skin of the left hindlimb. Microscopically, there were dermal pyogranulomas with 'negatively stained' hyphae, which were identified immunohistochemically as Pythium insidiosum.
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