Final Exam Flashcards
(32 cards)
These 2 viruses in cattle cause a transient rhino-tracheitis and broncho interstitial pneumonia with the formation of intracytoplasmic inclusion bodies in bronchial, bronchiolar, alveolar epithelial cells and alveolar macrophages.
- Para-influenza virus (PI-3)
2. Bovine respiratory Synsytial virus (BRSV)
Infectious Bovine rhino tracheitis (IBR) is caused by what virus?
BoHV-1
You suspect a calf has necrotizing bronchiolitis. What 2 virus would be on your list of differentials?
BRSV and PI-3
What are common sequels of chronic suppurative pneumonia?
Abcessation and bronchiectasis
Bovine enzootic pneumonia causes what type of pneumonia?
Chronic suppurative bronchopneumonia
Calves with this type of deficiency are highly susceptible to bronchopneumonia and why?
Calves with bovine leukocyte adhesion deficiency (BLAD). This prevents the migration of neutrophils from the capillaries.
Pneumonic manheimiosis is also referred to as shipping fever in cattle causes what kind f disease?
acute respiraory disease for several days after shipment.
What is the etiological agent that causes pneumonic manheimiosis?
Manheimia hemolytica
You are doing a PM exam on a cow that died from what we suspect is shipping fever. What would be the Mdx for the typical appearance of the lungs?
Fibrinous necrotizing and hemorrhagic bronchopneumonia
What is the characteristic appearance of the pulmonary parenchyma in Manheimia hemolyticum in cattle?
marbling appearance
manheimia hemolyticum biotype A serotype 1 is responsible for severe pulmonary lesions. What type of necrosis is seen?
Coagulative necrosis of the pulmonary parenchyma
What other bacterial pneumonia causes fibrinous pneumonia that may be hard to distinguish from Manheimia Hemolyticum?
Respiratory histophilosis which is caused by histophilus comnei
What is the main differentiating factor between histophilus somnei and manhaeimia hemolyticum?
The marbling of the pulmonary parenchyma in manheimia hemolyticum.
This bacteria is an important cause of chronic respiratory disease in North America?
Mycoplasma Bovis
How would you describe the type of pneumonia seen in cattle suffering from mycoplasma bovis?
Chronic necrotizing bronchopneumonia
In addition to Chronic necrotizing bronchopneumonia what other severe condition do we see in cattle?
Severe chronic fibrinous arthritis.
What type of necrosis do we see in the lungs of a cow suffering from chronic necrotizing bronchopneumonia caused by M. bovis?
Caseous necrosis
M. bovis is also referred to as Bovine tuberculosis. It produces granulomatous pneumonia and you also find lesions in what LN?
retropharyngeal LN, lungs, thoracic and mesenteric LN.
On PM you take out the lungs and notice there are areas of consolidation in the cranial ventral region and increased consistency. What type of pneumonia pattern would you classify this as?
Suppurative Bronchopenumonia
On PM you take out the lungs and notice yellow discoloration which is fibrin on the surface. What type of pneumonia pattern do you suspect and what are some potential etiologies?
Fibrinous bronchopneumonia
Manheimia Hemolytica + Histophilus somnei
On PM you take out the lungs and notice no major color changes but the lungs are enlarged and are heavier. You also notice rib impressions. What type of pneumonia pattern do you suspect?
Interstitial Pneumonia
On PM you take out the lungs and notice increased multifocal consolidation, hemorrhagic necrotizing lesions. What type of pneumonia do you suspect?
Embolic pneumonia
On PM you take out the lungs and notice pale nodular lesions, tan in color, and increased consistency. What type of pneumonia do you suspect and what type of infection?
Granulomatous infection due to mycosis
Why do we refer as lungs with pneumonia as hepatocitization?
Because it takes up a similar consistency
