4th Practical

Question 1

Name organ and type of disease and species?

Answer 1

Bronchopneumonia catarrhalis from pigs

Question 2

Organ and describe?

Answer 2

Normal lung tissue

alveoli and bronchioli are clean

Question 3

Answer 3

Airways filled with inflammatory cells

Question 4

Answer 4

Bronchopneumonia

Inflammation affects alveoli and terminal bronchi

Question 5

Answer 5

bronchiolitis obliterans

filled with inflammatory cells neutrophil granulocytes

Small bronchiole without cartilage with inflammatory exudate with neutrophil granulocyte

polymorphonuclear cell

Question 6

Answer 6

desquamated alveolar epithelial cells

upon damage they detach from basement membrane and become huge round cells

Neutrophil granulocytes and lymphoid cells also seen!

Question 7

Answer 7

epithelisation, type-2 pneumocytes

if cells survive they will try to rebuild with basement membrane

Question 8

Name the disease?

Answer 8

Pneumonia crouposa

or we can call it bronchopneumonia Crouposa

Damage of the vascular blood vessel is so severe that macromolecules like fibrinogen are able to come out of circulation and polymerize into fibrin

Question 9

What is 2 hallmark of this disease?

Answer 9

They are always covered by fibrinous pleuritis

Rabbit lung tissue

seen on parietal surface too

also liver like texture on surface

Pleuritis

Question 10

Answer 10

Inflammatory cells

Pneumonia crouposa

Question 11

Answer 11

Pneumonia Crouposa

Blood vessels having large thrombi in them

Presence of fibrin in the alveoli

Question 12

Answer 12

Croupous pneumonia

fibrin staining blue strands

Question 13

Answer 13

Pneumonia and pleuritis caused by Actinobacillus
pleuropneumoniae

in swine older animals

circumscribed lesions and pleuritis

cut surface 2nd pic

Question 14

Answer 14

Actinobacillus pleuropneumoniae

Perifocal are marked oedema and hyperaemia

Fibrin rich

Macrophage proliferation in the lumen of the alveoli hallmark part of the disease

Question 15

Answer 15

Actinobacillus pleuropneumoniae

Macrophage degeneration with bezoar proliferation with 3rd pic arrows

Question 16

Answer 16

Actinobacillus pneuropneumoniae

oedema and red blood cells evident with bleeding and hemorrhage in lung tissue due to toxins released from bacteria

Question 17

Answer 17

Interstitial pleuropneumoniae

airways clean infammatory cells not found in the airways but found in the interalveolar septae

due to viral infection same with covid!

Question 18

Answer 18

Interstitial pleuropneumoniae

Parasites! migrating in the interstitial causing pneumoniae with inflammatory cells (eosinophil!)

Question 19

Answer 19

kidney histology

Question 20

Answer 20

Oxolate nephrosis

Ethylene glycol poisoning(antifreeze)

Cats sensitive

Converted to oxolate acid combines with Ca to form oxolate crystals in tubuli of kidney

Question 21

Answer 21

Oxolate nephrosis

Tubulonephrosis lily poisoning in cats

cells sensitive to hypoxia

Question 22

Answer 22

Oxolate nephrosis

Crystals seen

Question 23

Answer 23

exudative glomerulonephritis

Deposition of immune complexes(antigens and antibodys) prolonged infection in the wall of small capillarys in the glomeruli!

pink protein rich exudate

Question 24

Answer 24

exudative glomerulonephritis

Neutrophil granuloctes seen

Question 25

Answer 25

exudative glomerulonephritis

Thickening of bowmans capsule and proteinuria

Question 26

Answer 26

Exudative glomerulonephritis

Protein rich glomeruli

Question 27

Answer 27

Exudative glomerulonephritis

bowmans capsule thick and proteinuria

Question 28

Answer 28

Interstitial nephritis

inflammatory cells found in the intertubular space

In flammation cells are mononuclear lymphocytes plasma cells and macrophages

Question 29

Answer 29

Interstitial nephritis

eosinophil granulocytes seen

Question 30

Answer 30

Interstitial nephritis

Question 31

Answer 31

Kidney fibrosis

firm kidney smaller than normal

Question 32

Answer 32

Kidney fibrosis

Question 33

Answer 33

Kidney fibrosis