9- Granulomatous disease Flashcards
Granulomatous disease is what form of inflammation
Chronic inflammation
If neutrophils are involved in predominant in granulomatous disease what is it called?
Pyo-granulomatous
Name a bacteria that causes granulomatous disease
Rhodococcus equi
Mycobacterium spp.
Actinobacillus spp.
Burkholderia mallei
Brucella spp.
Describe the mechanism of Rhodococcus equi in causing granulomatous disease
Lysis of monocytes-macrophage system
Bacteria proliferate within macrophages (vapA gene- allowing survival)
Inhibits phagosome- lysosome fusion
Survival and replication
What 2 disease are seen with mycobacterium spp
Johnes disease - mycobacterium avium paratuberculosis
Bovine TB - Mycobacterium bovis
What condition does actinobacillus lignieresii cause
Wooden tongue
Brucella spp. are transmitted via what route
Contact with inf. tissue, secretions or excretions
T/F fungi can be degraded and removed by acute inflammation
False- causes a chronic granulomatous inflammation
Via virulence factors
which cells are predominant in granulomatous disease
macrophages
epithelioid macrophages- are activated macrophages
multinucleated giant cells
what can cause granulomatous disease
microbial agents
autoimmune disease
foreign bodies
other idiopathic conditions
describe burkholderia mallei
glanders
is a zoonotic disease of donkeys, horses and mules
causes cutaneous nasal and pulmonary lesions
is a notifiable disease in the UK