Cardiopathology III (Never finished Oopsie)

Question 1

list the primary heart tumors

Answer 1

rhabdomyoma
mesothelioma
chemodectoma
hemangiosarcoma

Question 2

describe rhabdomyoma

Answer 2

cardiac muscle cells - very rare
pale/grey nodules in myocardium of heart

Question 3

describe mesothelioma

Answer 3

mesothelial cells lining serosa surface - can be nodular OR carpet-like
rare-uncommon
causes pericardial effusion

Question 4

ID pathology

Answer 4

rhabdomyoma

Question 5

ID pathology

Answer 5

mesothelioma

Question 6

ID pathology

Answer 6

mesothelioma

Question 7

describe chemodectoma

Answer 7

aka heart base aka aortic body tumor
uncommon in dogs - brachycephalics common

arise from extra-cardiac chemoreceptor tissue at heart base between aorta and pulmonary artery

Question 8

what’s the main HF mechanism regarding chemodectoma?

Answer 8

obstructed flow through heart - specifically pulmonary artery

Question 9

ID pathology

Answer 9

chemodectoma

Question 10

describe gross and histological appearance of chemodectoma

Answer 10

Question 11

ID pathology

Answer 11

chemodectoma

Question 12

ID pathology

Answer 12

chemodectoma

Question 13

what are the complications/outcomes of chemodectoma?

Answer 13

locally invasive
compresses surrounding structures

*may be benign or malignant

Question 14

describe hemangiosarcoma

Answer 14

neoplasm of endothelial cells of blood vessels
VERY common
*primary tumors are usually in R auricle area OR develop in spleen/liver

most common in goldens and germans

Question 15

ID pathology

Answer 15

hemangiosarcoma

Question 16

describe gross and histological appearance of hemangiosarcoma

Answer 16

Question 17

what are the common outcomes of hemangiosarcoma?

Answer 17

***metastatizes
rupture > hemorrhage into pericardium > hemopericardium +/- tamponade

Question 18

ID pathology

Answer 18

hemangiosarcoma

Question 19

ID pathology

Answer 19

hemangiosarcoma

Question 20

describe malignant lymphoma

Answer 20

most common secondary cardiac neoplasm
common in cows - HULA locations, dog, cat

Question 21

ID pathology

Answer 21

malignant lymphoma

Question 22

describe gross and histological appearance of malignant lymphoma

Answer 22

Question 23

Liz Brain

Question 24

ID pathology

Answer 24

arterial hypertrophy

Question 25

list causes of hypertrophy in cats, cattle, and general species

Answer 25

cat - parasite
cattle - brisket disease
L to R shunts

chronic P (hypertension) or volume overload

Question 26

describe brisket disease

Answer 26

cows at high altitude
hypoxic environment > pulmonary hypertension

young&raquo_space; old affected

Question 27

brisket disease pathogenesis

Answer 27

high altitude pulmonary arteries vasoconstriction > hypertrophy of arterial walls > dilation and hypertrophy of R ventricle (cor pulmonale) > R side CHF > ventral edema

Question 28

ID pathology

Answer 28

brisket disease - hypertrophy

Question 29

Liz Brain terms

Question 30

describe feline infectious peritonitis (FIP)

Answer 30

phlebitis (vein inflame)
pyogranulomatous inflammation (macrophage)
young cats
*effusive and noneffusive forms (wet/dry)

Question 31

wet FIP is type ___ hypersensitivity and dry is ___ hypersensitivity

Answer 31

wet - type III
dry - type IV

Question 32

which form of FIP has most increased vascular permeability?

Answer 32

wet
causes edema - dec oncotic P

Question 33

ID pathology

Answer 33

FIP

Question 34

ID pathology

Answer 34

FIP

Question 35

describe heartworm disease

Answer 35

Dirofilaria immitis
matures in pulmonary arteries
andarteritis - eosinophil infiltration of intima
pulmonary infarct due to thromboemboli

caval syndrome

Question 36

what’s caval syndrome in heartworm disease?

Answer 36

liver failure - R heart backup
hemolytic anemia - parasites eat RBC
cardiogenic shock

Question 37

ID pathology

Answer 37

heartworm disease - arteritis

Question 38

describe gross and radiograph appearance of heartworm disease

Answer 38

Question 39

SLIDE 18