Cardiovascular

Question 1

Heart of a feed lot steer

Etiology? MDx?

Answer 1

Etiology: Histophilus somni

MDx: acute multifocal necrotizing myocarditis

[picture here MDx: chronic multifocal suppurative necrosis and was under H. somni]

Question 2

From a cow

MDx? Why does this happen?

Answer 2

MDx: omphalophlebitis and multifocal hepatic abscessation

Remnant of the umbilical vein, which in a month old calf should have given rise to the round ligament of the liver

Question 3

Heart of a cow

MDX? Possible etiologies? What other lesions will you see?

Answer 3

MDx: valvular endocarditis

Possible etiologies: strep, staph or truperella pyogenes

Will also see jet lesions

Question 4

Heart from a 15 y.o. schnauzer

MDx? What disease process is this? What organ would you look at if this was left CHF? Right CHF? Which breed is genetically predisposed? What other lesion would you expect to see?

Answer 4

MDx: Valvular endocardiosis

Dengerative process

Left CHF: look at lungs for heart failure cells and pulmonary edema

Right CHF: look for nutmeg liver - MDX chronic hepatic congestion

Also see jet lesions

Question 5

Dog stuff

What is this? Where else would you expect to see lesions?

Answer 5

Hemangiosarcoma of the right atrium

Very quickly will metastasize to the lungs, kidneys and intestines

Question 6

From a horse

Etiology? EDx?

Answer 6

Etiology: strongylus vulgaris

EDx: parasitic arteritis