v.14, n.3, 6 – Suppurative meningoencephalitis secondary to a Trueperella pyogenes-induced mandibular abscess in a free-ranging gray brocket deer (Mazama gouazoubira)

v.14, n.3, 6 – Suppurative meningoencephalitis secondary to a <em>Trueperella pyogenes</em>-induced mandibular abscess in a free-ranging gray brocket deer (<em>Mazama gouazoubira</em>)

v.14, n.3, 6

Case Report

Suppurative meningoencephalitis secondary to a Trueperella pyogenes-induced mandibular abscess in a free-ranging gray brocket deer (Mazama gouazoubira)

Thaynara Parente de Carvalho, Daniel Oliveira dos Santos, Ayisa Rodrigues de Oliveira, Samantha Pinheiro Pimentel, Herlandes Penha Tinoco, Carlyle Mendes Coelho, Angela Tinôco Pessanha Ribeiro Gonçalves, Rafael Gariglio Clark Xavier, Rodrigo Otavio Silveira Silva & Renato Lima Santos

Abstract:

Trueperella pyogenes is an opportunistic pathogen, most commonly affecting ruminants and pigs. A female free-ranging gray brocket deer (Mazama gouazoubira) had an abscess in the masseter muscle associated with an osteolysis and osteomyelitis in the adjacent right mandibule, with a fistulous tract to the orbit and through the optic foramen into the skull, causing a suppurative meningitis. Histologically, the abscess was characterized by a neutrophilic and histiocytic inflammatory infiltrate with myriad of Gram-positive rod-shaped bacteria, and a focally extensive suppurative and histiocytic leptomeningitis of the ventral portions of the brain. Aerobic microbiologic culture, MALDI-ToF, and PCR identified T. pyogenes.

Keywords: Cervidae, osteomyelitis, meningitis, Trueperella pyogenes.
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DOI: 10.24070/bjvp.1983-0246.v14i3p180-187

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