Gross Pathology of Swine 2 Flashcards

Liver, nervous system, repro, urinary, integument, musculoskeletal

1
Q

Cause of larval migrans in liver; which is worse?

A

Ascaris suum
Stephanurus dentatum (will tear up hilus of kidney)

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2
Q

Differentials for liver necrosis

A

Pseudorabies
Gram - sepsis (s. cholerasuis, typhisuis, Actinobacillus suis)
Listeria monocytogenes
Aflatoxin

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3
Q

What does the Vietnamese potbelly pig get?

A

Hepatocellular carcinoma

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4
Q

Cause of hepatosis dietetica

A

Concurrent deficiencies in sulfur-containing amino acids, tocopherols, and selenium

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5
Q

Gross lesions with hepatosis dietetica

A

Massive hepatic necrosis and fibrosis, skeletal and cardiac muscle degeneration, serous effusions, gastric ulcerations, arteriolar fibrinoid necrosis
Yellow stained adipose

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6
Q

Differentials for gall bladder edema

A

CSF
ASF

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7
Q

Common neurologic congenital defect in swine

A

Meningocele or meningoencephalocele

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8
Q

What causes hydranencephaly in piglets?

A

Paramyxovirus

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9
Q

Cause of cerebellar hypoplasia?

A

Porcine pestivirus (CSF)**

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10
Q

Cause of cerebellar hemorrhage?

A

Porcine circovirus 2

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11
Q

Causes of fibrinosuppurative meningitis (2)

A

Streptococcus suis type 2
Glasserella parasuis

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12
Q

Causes of congestion and meningitis without fibrin

A

Salmonella cholerasuis (sepsis)

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13
Q

Morph with salt deprivation

A

Multifocal laminar necrosis with eosinophilic infiltrate

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14
Q

Neuro lesions with selenium toxicity

A

Bilaterally symmetric poliomyelomalacia (necrosis of ventral horns**)

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15
Q

Cause of fibrin in testis

A

Polyserositis (big 3)

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16
Q

Cause of really bad testes with pyogranulomatous inflammation

A

Brucella suis

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17
Q

Primary cause of cystitis and pyelonephritis, including preputial diverticulitis

A

Actinobaculum suis

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18
Q

Causes of vulvovaginitis and mammary development in pre-pubertal animals (estrogen effects)

A

Fusarium spp. toxin (F2-zearalenone)
Alfalfa
Soybeans

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19
Q

Common finding in uterus of Vietnamese potbelly pigs

A

Cystic endometrial hyperplasia

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20
Q

Cause of abortion with proliferative and necrotizing dermatitis

A

Swine poxvirus

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21
Q

Classic cause of SMEDI; other causes

A

Porcine parvovirus; PCV-2, porcine arterivirus (PRRS), lepto, pseudorabies

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22
Q

Turkey egg kidney causes

A

CSF
ASF
S cholerasuis or typhisuis
Erysipelothrix rhusiopathiae

23
Q

Review: three classic presentiations of erysipelas

A

Sepsis
Polyarthritis
VVE

24
Q

Cause of glomerulonephritis with large hemorrhagic LNs

A

PCV-2 (Porcine Dermatitis and Nephropathy Syndrome)

25
Q

Any moth eaten appearance of the kidney is caused by

A

Leptospirosis- interrogans serovars Pomona and Bratislava

26
Q

Cause of pyelonephritis in pigs

A

Actinobaculum suis

27
Q

Kidney worm

A

Stephanurus dentatus

28
Q

Cause of perirenal edema (2)

A

Amaranthus retroflexus (redroot pigweed)
Ochratoxin

29
Q

Kidney appearance with melamine toxicosis

A

Birefringent yellow crystals throughout cortex and medulla

30
Q

How does urate deposition (dehydration) look different from melamine toxicosis

A

Pale discoloration/white streaks only in medulla

31
Q

Two causes of PCKD

A

Hereditary
Hypovitaminosis A

32
Q

Most common primary renal tumor

A

Nephroblastoma

33
Q

Most common urolithiasis

A

Calcium carbonate

34
Q

Cause of thrombocytopenic hemorrhages in neonates; breed

A

Thrombocytopenia purpura; Gottingen mini pigs

35
Q

Piglets <2 weeks with pseudorabies

A

Dead, blisters all over skin, meningitis

36
Q

Lice in the pig; what do they transmit (3)

A

Haematopinus suis; swine pox, CSF, mycoplasma suis

37
Q

Five vesicular diseases

A

FMD (picornaviridae, aphthovirus)
Vesicular exanthema (caliciviridae, vesivirus)
Vesicular stomatitis (rhabdoviridae, vesiculovirus)
Swine vesicular disease (picornaviridae, enterovirus)
Seneca virus (picornaviridae, senecavirus)

38
Q

Butt skin lesions (classic infarcts) with kidney inset

A

PCV-2

39
Q

Diamond-shaped red purple patches on skin (infarcts)

A

Erysipelothrix rhusiopathiae

40
Q

Chronic versions of erysipelas (2)

A

VVE
Chronic proliferative arthritis

41
Q

Review:
1. Cause of skin hemorrhages
2. Cause of neck or back with significant edema**

A
  1. CSF
  2. Edema disease (shiga toxin producing ETEC)
42
Q

Cause of exudative epidermitis (crusty)

A

Staphylococcus hyicus (greasy pig disease)

43
Q

Cause of raised, serpiginous erythematous lesions

A

Porcine juvenile pustular psoriasiform dermatitis

44
Q

Mange of pigs

A

Sarcoptes scabeii var. suis

45
Q

Cause of non-pruritic extremely thickened skin and hyperkeratosis

A

Parakeratosis- zinc-responsive dermatosis

46
Q

Autosomal recessive skin disease of Landrace pigs; cause of mortality

A

Dermatosis vegetans; giant cell pneumonia

47
Q

Causes of cyanosis/infarctions

A

CSF
ASF
Sepsis (S. cholerasuis/typhisuis, erysipelothrix rhusiopathiae)

48
Q

Who gets bullous pemphigoid? Gross lesions?

A

Yucatan minipigs; blisters on dorsum

49
Q

Cause of necrosis of extremities (ear, tail, nipples)

A

Ergotism- Claviceps purpura (ryegrass parasite)

50
Q

Cause of significant periosteal proliferation

A

Congenital hyperostosis

51
Q

Cause of costochondral junction lesion

A

Rickets (Vit D deficiency); not scurvy because pigs produce own Vit C

52
Q

Cause of jowl infarction and swelling (3)

A

Clostridium septicum, novyi, penoclostridium sordelli

53
Q

Cestode within pork muscle (2)

A

Taenia solium cysticerci
Spirometra mansoni

54
Q

Causes of polyarthritis

A

Polyserositis triad
Chronic erysipelothrix