Brain pathologies in pigs are rarely considered, but this species could sometimes spread very dangerous zoonosis. The authors described macroscopical and histological features observed in n° 214 brains of Nebrodi’s Black pigs ranging from 6 months to 2 years collected during 2005-2006 years. 48% of the brains showed inflammatory and/or degenerative lesions. The most frequent lesions were inflammations (76.06%) and precisely multifocal or focal mononuclear perivascular cuffs (29.37%), leptomeningitis (28.57%), arteritis (23.80%), diffuse encephalitis (10.32%), and plexus choroiditis (7.94%). In n° 5 animals parasitic cists (Toxoplasma or Hammondia spp) were detected. 23.9% of the brains showed degenerative lesions (malacia, choroids plexus fibrosis, arteriosclerosis). Flogosis are probably caused by viral infections, but it was impossible to demonstrate the specific agent. The high incidence of the brain lesions in these feral pigs makes necessary the activation of the prophylaxis measures to prevent the diffusion of zoonosis or other infections dangerous for animal species that live in the Nebrodi’s park area.
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