Gross Pathology of Small Ruminants 3

Question 1

Cause of red, inflamed, or ulcerated coronary band

Answer 1

Bluetongue (endotheliotropic, infarction)

Question 2

Cause of pustules on coronary band and in oral cavity

Answer 2

Foot and Mouth Disease (Apthovirus)

Question 3

What causes contagious ecthyma? Differential?

Answer 3

Parapoxvirus; sheeppox

Question 4

Morph for parapoxvirus

Answer 4

Proliferative and necrotizing dermatitis

Question 5

Which mange is okay? which mange is reportable?

Answer 5

Chorioptes bovis, apri
Psoroptes ovis

Question 6

Biting louse

Answer 6

Trichodectes sphaerocephalus

Question 6

Cause of type III photosensitization (swelling of face)

Answer 6

Rye grass, pythomyces chartarum fungus produces sporodesmin
Lupins (phomopsis species)

Question 7

Name when vessels in pampiniform plexus become thrombosed

Answer 7

Varicoceles

Question 8

Head of epididymis swelling

Answer 8

Sperm granulomas

Question 9

Tail of epididymis swelling

Answer 9

Brucella ovis
Corynebacterium pseudotuberculosis
Actinobacillus seminis

Question 10

Cause of chronic suppurative endometritis

Answer 10

fetal retention

Question 11

Cause of acute endometritis

Answer 11

E.coli, Staph aureus, truep
Paeniclostridium sordellii (article)
Clostridium perfringens type A

Question 12

Common uterine tumor in SR

Answer 12

Fibroleiomyoma

Question 13

Number 1 cause of necrotizing mastitis

Answer 13

Staphylococcus aureus, also Mannheimia hemolytica (unexpectedly, article)

Question 14

Number 1 cause of chronic suppurative mastitis

Answer 14

Trueperella pyogenes

Question 15

Viral cause of mastitis in goats

Answer 15

CAE (lentivirus)

Question 16

Cause of firm, enlarged udder (contagious ovine agalactia)

Answer 16

Mycoplasma agalactiae

Question 17

White dots on cotyledons of placenta**

Answer 17

Toxoplasma gondii

Question 18

Morph with toxoplasmosis

Answer 18

Necrotizing cotyledonary*** placentitis

Question 19

White chalky exudate between cotyledons- cause (PEPPERONI PIZZA)

Answer 19

Q fever (Coxiella burnetti)
Chlamydia pecorum
Brucella ovis
Campylobacter fetus

Morph: Cotyledonary and intercotyledonary placentitis

Question 20

Most common cause of abortion

Answer 20

Chlamydia pecorum

Question 21

Cause of targetoid lesions in fetal liver

Answer 21

Campylobacter fetus

Question 22

Cause of abortion, liver necrosis in fetus

Answer 22

Listeria monocytogenes

Question 23

Which virus is associated with SCC in sheep?

Answer 23

Ovis aries papillomavirus 3

Question 24

Cause of myocardial hemorrhage and necrosis in goats

Answer 24

Yellow oleander (thevetia peruviana)