Species: Ruminant, Ox

Specimen:
Brain

Shown:
Suppurative meningitis and ventriculitis, moderate to marked, acute to subacute (secondary to pituitary abscessation)

Comments:
The pituitary region, and surrounding rete mirabile, is a preferential location for brain abscesses in ruminants. The extensive capillary network of the rete mirabile predisposes this region to bacterial colonization.