Streptococcus equi ssp zooepidemicus meningitis in a cat

History: 8 yr old female DSH, Head tilt and ataxia

Gross Path: The tympanic bullae were filled with purulent exudate bilaterally

Purulent exudate in the tympanic bulla

Cat, tympanic bulla, suppurative exudate

Morphologic Diagnosis:

Brain: Diffuse meningoencephalitis, suppurative, chronic with perivascular cuffing.
Spinal cord: Multifocal meningitis, suppurative, chronic, with axonal degeneration and macrophages in the ventral and lateral funiculi.

Meningitis, suppurative

Gitter cell in axon space

Gitter cell



Comment: We cultured Streptococcus equi spp zooepidemicus from the exudate in the tympanic bulla


About Brian

Anatomic Pathologist, VetPath Services, Stone Ridge, NY- musculoskeletal, oral/dental, and sinonasal diseases
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