Alimentary 6 Species differences

Question 1

What are your DDx for equine acute hemorrhagic colitis?

Answer 1

Salmonellosis

Clostridial colitis:
Equine Acute Clostridial Typhlocolitis

NSAIDs

Equine monocytic ehrlichiosis

Question 2

What must you rule out before you can diagnose Clostridiosis?

Answer 2

Salmonellosis

Equine Monocytic Ehrlichiosis

Question 3

Pathophys behind NSAID causing hemorrhagic colitis

Where are the ulcers found?

Answer 3

NSAIDs inhibit prostaglandin production which leads to mucosal damage and ulcerations—glandular stomach and RDC

Question 4

Etiologic agent of equine monocytic ehrlichiosis

Answer 4

Neorickettsia risticii

Question 5

Equine Monocytic ehrlichiosis whats the gross lesion look like?

Answer 5

congestion, petechia (tick dz causes clotting issues) SEVERE INTRAMURAL EDEMA, and hemorrhage of the cecum and colon with watery diarrhea

Question 6

Whats a parasite of the horse that can be found at the cranial mesenteric artery, and what can this cause?

Answer 6

Strongylus vulgaris

causing arteritis, mural thrombosis and vascular occlusion

Question 7

Multifocal nodular pyogranulomatous pneumonia is the common lesion in horses for?

Answer 7

Rhodococcus equi enteritis

Question 8

What is a dz in horses that is similar to paratuberculosis dz in ruminants?

What does it look like?

Answer 8

Equine Granulomatous enteritis

Chronic diffuse granulomatous enteritis leading to thickening of intestines, malabsorptive diarrhea, hypoalbuminemia and wasting

Question 9

What is a Dz in Horses that the CS are soft stools to diarrhea, hypoproteinemia, weight loss, and mild colic that is progressive and is suggestive of a HS rx.

Answer 9

Equine chronic eosinophilic gastroenteritis.

Question 10

What is associated with numerous discrete foci of necrosis and hemorrhage through the GI tract, larynx, and sk m?

Answer 10

Anaphylactoid purpura

Question 11

What is associated with numerous discrete foci of necrosis and hemorrhage through the GI tract, larynx, and sk m? Horses

Answer 11

Anaphylactoid purpura

Question 12

What is the suspected pathogenesis of Anaphylactoid purpura?

Answer 12

HS III vasculitis secondary to step resp infection

Question 13

BVD, what else is it called

whats the virus

what age does it effect

clinical presentation

Answer 13

Mucosal Dz

Pestivirus, 6mo - 2yrs

Subclinical to acute and severe enteritis dz, to the highly fatal mucosal dz

Question 14

What is mucosal dz characterized by?

When can it be induced?

Answer 14

Profuse enteritis and ulcerative mucosal lesions

PI cattle become superinfected with cytopathic BVDV

Question 15

What are your gross lesions for BVD?

Answer 15

Ulceration throughout the oral cavity and GI.
Mucosa over peyers patches may be hemorrhagic and necrotic
extensive necrosis of lymphoid tissues-GALT

Question 16

What causes hairy shakers dz?

What does it look like?

Answer 16

Border virus

Hair lambs and kids

Congenital cerebellar cavitation

Question 17

Why is border virus dz in this section?

Answer 17

It can develop ulcerative lesions similar to BVD

Question 18

Etiologic agent for Cattle plague?

Lesions, and histologically?

Answer 18

Rinderpest-morbilivirus

Lesions similar to BVD but histologically may see intracytoplasmic and intranuclear inclusions as well as syncytial cells

Question 19

Ulcerative and fibrinonecrotic stomatitis, tonsilitis, enteritis, and bronchinterstitial pneumona

Sheep and goats, Middle East, india, NA-not US.

Answer 19

Peste des petits ruminants PPR

Question 20

CS: depression, fever, congested mucosa and necrotitic stomatitis. serious and then mucopurulent nasal and ocular discharges. severe diarrhea, soft then watery and foul smelling with blood and necrotic epithelium

Answer 20

PPR

Question 21

What is the primary lesion for malignant catarrhal fever

Answer 21

vasculitis, with secondary multifocal ulceration and hemorrhage of mucosa

Question 22

Lesion: catarrhal ileitis and jejunitis.

CS: acute diarrhea (hemorrhagic and severe), decreased milk production, depression, anorexia

Highly contagious nonfatal dz of adult cattle

Answer 22

Winter dysentery

occurs during the winter in northern latitudes

Question 23

In what dz do CS not show up until 2 bc dz is slow progressing.

Lesions: intestines thickened and corrugated due to expansion of the lamina propria by granulomatous inflammation, granulomatous mesenteric lymphadenitis

How do you diagnose?

Answer 23

Paratuberculosis-Johnes dz

Acid fast stains

Question 24

What is a fatal dz characterized by severe intraluminal and intramural hemorrhage and necrosis leading to a large luminal blood clot and obstuction of the jejunum?

Etiology?

Answer 24

Hemorrhagic bowel syndrome of diary cattle, or jejunal hemorrhagic syndrome

Clostridium perfringens TA

Question 25

What are 2 abomasal parasites to remember? Characteristics, etc?

Answer 25

Haemonchus contortus-barber pole worm. severe anemia and hypoproteinemia that leads to edema in the subcutaneous tissue of the intermandibular space-bottle jaw.

ostertagia ostertagi-western stomach worm. 2 types. 1: summer. 2: winter-