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Idiopathic Inflammatory Diseases of the CNS

Terms in this set (17)

necrotizing meningoencephalitis (pug dog encephalitis)

(asymmetrical malacia, pseudocystic cavities in subcortical gray matter)
necrotizing meningoencephalitis (pug dog encephalitis)

(severe lymphocytic meningitis and polioencephalitis with necrotizing leukoencephalitis in underlying white matter)
necrotizing meningoencephalitis (pug dog encephalitis)

(severe lymphocytic meningitis and polioencephalitis)
necrotizing meningoencephalitis (pug dog encephalitis)

(severe lymphocytic meningitis and polioencephalitis with necrotizing leukoencephalitis in underlying white matter)
necrotizing leukoencephalitis

(large asymmetric bilateral malacic foci confined to deep white matter)
necrotizing leukoencephalitis

(thick lymphocytic perivascular cuffs, intense histiocytic/microglial infiltration with loss of white matter)
Tissue from the deep white matter of the cerebrum in a Yorkshire terrier. Diagnosis:
necrotizing leukoencephalitis

(thick lymphocytic perivascular cuffs, proliferation of gemistocytic astrocytes, "burnt out" cystic lesion)
Tissue from the deep white matter of the cerebrum in a Yorkshire terrier. Diagnosis:
granulomatous meningoencephalitis

(angiocentric aggregates of macrophages, lymphocytes, plasma cells within white matter)
steroid responsive meningitis-arteritis

(fibrinoid necrosis, thrombosis, periarterial fibrosis and subintimal proliferation, perivascular to transmural infiltration by inflammation)
steroid responsive meningitis-arteritis

(fibrinoid necrosis, thrombosis, periarterial fibrosis and subintimal proliferation, perivascular to transmural infiltration by inflammation)
steroid responsive meningitis-arteritis

(fibrinoid necrosis, thrombosis, periarterial fibrosis and subintimal proliferation, perivascular to transmural infiltration by inflammation)
acute polyradiculoneuritis
An autoimmune disease in dogs associated with raccoon bites that is characterized by ascending paresis-paralysis within 7-10 days.
acute polyradiculoneuritis, sensory ganglioneuritis

(diffuse lymphoplasmacytic infiltration with axon degeneration)
2 possible differentials in a dog:
cauda equina neuritis

(fibrosing, granulomatous, and necrotizing polyneuritis w/ multinucleated giant cells)
cauda equina neuritis

(massive inflammatory thickening of both intradural and extradural nerve roots)
Tissue from a horse
Halicephalobus gingivalis
Important infectious differential for cauda equina neuritis (also causing granulomatous neurits):
granulomatous radiculitis of 7th and 8th cranial nerves
Can cause facial paralysis in young calves; suspected to be associated with Mycoplasma bovis otitis media/interna.
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