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Pathology > Lecture 11 > Flashcards

Lecture 11 Flashcards

1
Q

What does transmissible gastroenteritis infect

A

Piglets - 100% mortality Mild disease in young adults

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2
Q

What does transmissible gastroenteritis target

A

Severe villous atrophy, malabsorption, osmotic diarrhoea - Fusion of adjacent vili means limited vili restoration - If survive -> chronic ‘poor doers’

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3
Q

Signs of transmissible gastroenteritis

A

Vomiting, profuse diarrhoea, dehydration

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4
Q

Necropsy of transmissible gastroenteritis

A
  • Perineal yellow faecal staining - Dilated thin-walled SI - Yellow fluid and gas contents
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5
Q

What id porcine epidemic diarrhoea virus similar to

A

Coronavirus similar to TGE

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6
Q

What does porcine epidemic diarrhoea virus infect

A

All ages

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7
Q

What does porcine epidemic diarrhoea virus cause

A

Vomiting, diarrhoea, weightloss

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8
Q

What is the pathology of porcine epidemic diarrhoea virus

A

Occasional epithelial syncytial

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9
Q

What does Classical swine fever cause

A

Widespread damage to blood vessels - Widespread petechial haemorrhages - Dyspnoea, coughing - Skin erythema and cyanosis - Diarrhoea Button ulcers in the large intestine

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10
Q

What causes swine dysentery

A

Brachyspira hyodystenteriae

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11
Q

What does swine dysentery affect

A

Larges intestines

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12
Q

What does swine dysentery infect

A

Weanling pigs 8-14 weeks

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13
Q

Swine dysentery disease with Is a synergistic disease what are the colonic anaerobes

A

Fusobacterium necrophorum and bactericides vulgates

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14
Q

What are the signs of swine dysentery

A

Anorexia, mucohaemorrhagic diarrhoea, dehydration, emaciation

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15
Q

What causes porcine intestinal spirochetosis

A

Brachyspira pilosicoli

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16
Q

What is infected with porcine intestinal spirochetosis

A

Pigs, poultry, humans, dogs

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17
Q

What does porcine intestinal spirochetosis cause

A

Reduced weight gain Watery to mucoid diarrhoea, no blood Grossly severe cases may develop fibronecrotic typhlocolitis

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18
Q

What causes porcine proliferative enteropathy

A

Lawsonia intracelularis

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19
Q

When does Lawsonia intracelularis infect

A

Post weaning - Morbidity 10-15%, mortality 50% - Hyperplasia od intestinal crypt calls esp ileum -Progresses to necrosis of crypt cells and haemorrhage

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20
Q

What are the lesions seen with Lawsonia intracellular

A

Variable amount of blood in faeces Thickened, hyperplastic proliferative mucosa Histologically, may mitoses can resemble neoplasms

21
Q

What does fibrinous polyserositis cause

A
  • Pleuritis, pericarditis, peritonitis, arthritis, meningitis - Inflammation of intestinal serosa-serositis
22
Q

What does ascaris suum cause

A

Weightless, visceral larval migrans, intestinal obstruction

23
Q

What does coccidiosis cause

A

Neonatal scours - Villous atrophy, diarrhoea, ill thrift

24
Q

What does cryptosporidiosis cause

A

Neonatal scours - Villous atrophy, diarrhoea

25
Q

What does trichuris suis cause

A

Typhlocolitis, proctitis, occ. bloody diarrhoea, wt loss

26
Q

What does oesophagostomun dentate cause

A

Nodules in large intestine, little clinical significant

27
Q

What sort of disease is oedema disease

A

E.co;i

28
Q

What does oedema disease infect

A

Pigs only - Usually 6-14 weeks - Often best pigs in excellent condition

29
Q

What does oedema disease produce

A

Bacterial antitoxin produced by S.I. - Generalised vascular endothelial injury and oedema

30
Q

Where do you see the oedema in oedema disease

A

Eyelids, gastric submucosa, forehead, spiral colonic mesentery

31
Q

What are the neurological signs seen with oedema disease

A

Incoordination, tremors, convulsions, death

32
Q

What soy of disease is post-weaning colibacillosis

A

E.coli

33
Q

What does post-weaning colibacillosis infect and when

A

Pigs only, a couple of weeks after weaning - Ass. with feed and management changed at weaning

34
Q

What does post-weaning colibacillosis occur concurrently with

A

Odema disease

35
Q
A

Transmissible Gastroenteritis

36
Q
A

Transmissible Gastroenteritis

37
Q
A

Swine Sysentery: Brachyspira hyodysenteriae

38
Q
A

Porcine intestinal spirochetosis

39
Q
A

Porcine proliferatice enteropathy

Lawsonia intracellularis

40
Q
A

Procine proliferative enteropathy

Lawsonia intracellularis

41
Q
A

Porcine Proliferatice Enteropathy

Laesonia intracellularis

42
Q
A

Procine proliferatice enteropathy

Lawsonia Intracellularis

43
Q
A
44
Q
A

Fibrinous Polyserositis

45
Q
A

Odema Disease

46
Q
A
47
Q
A

Ascaris suum: milk spot liver

48
Q
A

Fibrinonecrotic enteritis

Pathology (26 decks)

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