5. Various organ lesions due to necrobacillosis and actinobacillosis Flashcards
main consequence of necrobacillosis in young
necrotic stomatitis
for necrobacillosis where are the necrotic lesions located
liver
alimentary canal
gram -ve bacteria causing nectrotic lesions
fusobacterium necrophorum
is fusobacterium necrophorum zoonotic
yes
where is fusobacterium necrophorum present
soil
oral cavity
invades mucosa following injury
metastasis of necrobacillosis
to regional Ln
where does necrobacillosis of ear and tail metastatise to
lung
where does necrobacillosis of naval metastatise to
liver
where does necrobacillosis of oral cavity metastatise to
lung
what causes liver abscess syndrome
hyperkeratosis due to rumen acidosis due to necrobacillosis
clinical signs of necrobacillosis in oral cavity
swollen cheeks
anorexia
weight loss
fever
putrid breath
pathology of necrobacillosis in the oral cavity
dry, round localised necrotic spots
greyish, swollen areas
coagulation necrosis
demarcation
where is the coagulation necrosis due to necrobacillosis
buccal pad
gums
pharynx
forestomachs
necrobacillosis of skin lesions
circumscribed necrotic foci
extended coagulative necrosis & hemolysis
histopath of necrobacillosis of skin
spf pseudomembranes
uterus lesions in case of necrobacillosis
necrotic metritis
necrosis of mm and muscles
thickening and rigidity of cervix and vagina
lung lesions in case of necrobacillosis
necrotic pneumonia
necrotic bronchitis
peribronchitis
liver lesions in case of necrobacillosis
in newborns due to naval infection
local necrosis
dissemination of liver
main type of actinobacillosis
a. lignieresei
infection of actinobacillosis
injuries (teeth, plants)
invasion of deeper tissues
how do injuries of oral cavity cause actinobacillosis
lamina propria –> invasion and carried by Lymph
alterations due to actinobacillosis
ulceration
multiple abscess
pyogranuloma
fibroma
nodules of actinobacillosis
sharply demarcated
yellowish, brown granulation
serous exudate neutrophils from site of infection
yellow pyogranuloma
tumour like growths of actinobacillosis
consequence of extreme granulation
soft-greyish yellow tissue
bugling
foci of pus
hard connective tissue capsule
