title: Presumptive meningoencephalitis secondary to extension of otitis media/interna caused by Streptococcus equi subspecies zooepidemicus in a cat.
abstract: A 5-year-old castrated male domestic longhair cat was presented with neurological signs consistent with a central vestibular lesion and left Horner's syndrome. Computed tomography images revealed hyperattenuating, moderately contrast-enhancing material within the left tympanic bulla, most consistent with left otitis media/interna. Marked neutrophilic pleocytosis was identified on cerebrospinal fluid analysis. Streptococcus equi subspecies zooepidemicus (SEZ) was isolated from the cerebrospinal fluid. Intracranial extension of otitis media/interna is relatively infrequent in small animals. There are no reports of otitis media/interna caused by SEZ in dogs or cats. This is the first report of otitis media/interna and presumptive secondary meningoencephalitis caused by SEZ in a cat.
authors.affiliation: Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA. martin-vaquero.1@osu.edu
authors.forename: Paula
authors.initials: P
authors.lastname: Martin-Vaquero
authors.forename: Ronaldo C
authors.initials: RC
authors.lastname: da Costa
authors.forename: Joshua B
authors.initials: JB
authors.lastname: Daniels
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000134:cerebrospinal fluid / Q000175:diagnosis* / Q000382:microbiology*; D002415:Cats; D008297:Male; D008590:Meningoencephalitis / Q000150:complications / Q000175:diagnosis / Q000382:microbiology / Q000662:veterinary*; D009820:Ohio; D010033:Otitis Media / Q000150:complications / Q000175:diagnosis / Q000382:microbiology / Q000662:veterinary*; D013290:Streptococcal Infections / Q000150:complications / Q000175:diagnosis / Q000662:veterinary; D018502:Streptococcus equi / Q000302:isolation & purification; D014057:Tomography, X-Ray Computed / Q000662:veterinary; D016896:Treatment Outcome