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Pathology > Lecture 11 > Flashcards

Lecture 11 Flashcards

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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

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A

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

21
Q

What does fibrinous polyserositis cause

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

What does ascaris suum cause

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A

Weightless, visceral larval migrans, intestinal obstruction

23
Q

What does coccidiosis cause

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A

Neonatal scours - Villous atrophy, diarrhoea, ill thrift

24
Q

What does cryptosporidiosis cause

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A

Neonatal scours - Villous atrophy, diarrhoea

25
What does trichuris suis cause
Typhlocolitis, proctitis, occ. bloody diarrhoea, wt loss
26
What does oesophagostomun dentate cause
Nodules in large intestine, little clinical significant
27
What sort of disease is oedema disease
E.co;i
28
What does oedema disease infect
Pigs only - Usually 6-14 weeks - Often best pigs in excellent condition
29
What does oedema disease produce
Bacterial antitoxin produced by S.I. - Generalised vascular endothelial injury and oedema
30
Where do you see the oedema in oedema disease
Eyelids, gastric submucosa, forehead, spiral colonic mesentery
31
What are the neurological signs seen with oedema disease
Incoordination, tremors, convulsions, death
32
What soy of disease is post-weaning colibacillosis
E.coli
33
What does post-weaning colibacillosis infect and when
Pigs only, a couple of weeks after weaning - Ass. with feed and management changed at weaning
34
What does post-weaning colibacillosis occur concurrently with
Odema disease
35
Transmissible Gastroenteritis
36
Transmissible Gastroenteritis
37
Swine Sysentery: Brachyspira hyodysenteriae
38
Porcine intestinal spirochetosis
39
Porcine proliferatice enteropathy Lawsonia intracellularis
40
Procine proliferative enteropathy Lawsonia intracellularis
41
Porcine Proliferatice Enteropathy Laesonia intracellularis
42
Procine proliferatice enteropathy Lawsonia Intracellularis
43
44
Fibrinous Polyserositis
45
Odema Disease
46
47
Ascaris suum: milk spot liver
48
Fibrinonecrotic enteritis

Pathology (26 decks)

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