Infection and Inflammation of the CNS Flashcards
Defence mechanisms in the brain (4)

What are the different routes of infection + examples? (4)

General features of lesions and the nature of the infecting organism (4)

Suppurative inflammation - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Bacterial = Listeria, embolic diseases, septicaemias
Fungal/algal/protozoan/helminth = Aspergillus, Amebae, Prototheca, Encephalitozoon cuniculi
Viral = arbovirus
Eosinophilic inflammation - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Fungal/algal/protozoan/helminth = Helminths (coenurus, cysticercus)
Non-infectious = allergy?
Suppurative-pyogranulomatous inflammation - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Fungal/algal/protozoan/helminth = Toxoplasma gondii, Neospora caninum, Cryptoccocus neoformans, Sarcocystis neurona
Non-suppurative inflammation (lymphocytes + plasma cells) bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Viral = Rabies, Aujeszky, Distemper, EEE, VEE, JEE, EHV*, West Nile, Borna
Non-suppurative/granulomatous inflammation - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Bacterial = mycobacteria
Viral = Visna-maedi, CAEV, EIAV, FIP
Non-infectious agents = GME = granulomatous meningoencephalitis, NME = necrotising meningoencephalitis
Grey matter inflammation (polio) - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Viral = Rabies, Aujeszky, EEE, VEE, JEE, EHV*, West Nile, Borna
Non-infectious = NME = necrotising meningoencephalitis
White matter inflammation (leuko) - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Viral = Distemper, Border disease, Visna-Maedi
Non-infectious = GME = granulomatous meningoencephalitis
Vasculitis - bacterial? fungal/algal/protozoan/helminth? viral? non-infectious agents?
Bacterial = TME = thrombotic meningoencephalitis
Viral = FIP, herpesviruses, CSF, ASF, MCF
What do bacterial infections involve and the common patterns associated with inflammation (7)

What is meningitis? species, bacteria, portal of entry, clinical signs (13)


Diffuse suppurative meningitis - pig


Suppurative meningitis

What are cerebral abscesses? (2)

Cerebral abscesses - haematogenous location (2)

Cerebral abscesses - direct invasion locations (5)

What are the histopathological features of cerebral abscesses? (6)

Septic embolism and thromboembolism to the brain - bacterial agents and outcomes (5)

What is thrombotic meningoencephalitis (TME)? (6)







What is listeriosis - areas affected, route of infection (7)

Where are the areas of lesions of listeriosis?

Listeria - histo

Aetiology of granulomatous/pyogranulomatous encephalitis (7)



What do CNS viral infections involve? (8)

How is rabies spread?

What are the histopathological features of viral infections? (7)

What are the different equine viral diseases? (4)

Canine distemper virus - CNS features (4)
- Non-suppurative encephalitis, mostly of WM
- Demyelination of WM
- Secondary gliosis
- Inclusion bodies

Canine distemper - systemic disease features (7)



What do protozoan infections involve? (6)



What do fungal and algal diseases involve? (6)


GID = coenurus

What is granulomatous meningoencephalomyelitis (GME)? (4)
Non-infectious encephalitides (auto-immune disease)

What is necrotising meningoencephalitis (NME)? (4)
Non-infectious encephalitides (auto-immune disease)

Granulomatous menigoencephalomyelitis (GME) - gross pathology

Granulomatous menigoencephalomyelitis (GME) - histopathology
