anatomic pathology

Question 1

fibrinous broncopneumonia in a cow

Answer 1

m. haemolytica

Question 2

fibrinous bronchopneumonia that is an exception to the cranioventral distribution

Answer 2

actinobacillus pleuropneumoiae cd dorsal

Question 3

where does suppurative bronchopneumonia go in horse lungs

Answer 3

cv aspect of the diaphragmatic lobe

Question 4

atypical intersitial pneumonia

Answer 4

fog fever

Question 5

what causes intersitial pneumonia and encephalitis in sheep/goats

Answer 5

CAE/OPP

Question 6

checkered board pattern on pig lungs is most likely

Answer 6

viral. PRRSV, etc

Question 7

what causes interstitial pneumonia

Answer 7

viruses

Question 8

granulomatous pneumonia in a cat

Answer 8

FIP

Question 9

fibrinonecrotic pharyngitis and tracheitis

Answer 9

herpes viruses. BHV1, EHV1, GHV 1

Question 10

granulomatous rhinitis in a cat is ___

Answer 10

crpyto neoformans until proven otherwise

Question 11

neoplastic diseases of the heart

Answer 11

hemangiosarc, chemodectoma, lymphoma

Question 12

where do we find hemangiosarc consistently in the heart

Answer 12

right auricle

Question 13

where do we find chemodectomas in the heart

Answer 13

heart base tumors

Question 14

where do we find lymphoma

Answer 14

HULAS- heart, uterus, LN, abomasum, spine

Question 15

what is boxer cardiomyoapathy and what is a common cs

Answer 15

adipose tissue where there should be muscle. this cause afib most commonly

Question 16

what is the MOA of selenium /vit E

Answer 16

glutathione peroxidase. this needs Se to scavenge free radicals

Question 17

why is selenium deficiency injuries to the heart a problem

Answer 17

the heart muscles do not regenerate, the fibrose and scar. this is bad for conduction

Question 18

in RHF where can we find lesions

Answer 18

fibrosis in the liver around the central vein. blood backs up out of the right heart there

Question 19

multifocal nodular pattern in the lungs differentials

Answer 19

granulomatous-fungal, neoplastic

Question 20

foal with multifocal granulomatous pneumonia

Answer 20

r equi until proven otherwise

Question 21

how much does an HCM heart weigh on necropsy

Answer 21

> 18g

Question 22

pathophys of DCM

Answer 22

abnormal sysole causes volume overload and dilation of the ventricle

Question 23

what can cause HCM

Answer 23

1’ hyperthyroidism– hypertension, or genetics

Question 24

where else can you look for lesions from selenium deficiency

Answer 24

active muscles- diaphragm, heart, tongue

Question 25

if you find a shiny, slimy heart what does that tell you

Answer 25

serous atrophy of fat. there has been a severe negative energy balance. lackof food, cachexia, malabsorptive dz, etc

Question 26

why can a dog still die once they get rid of the heartworms

Answer 26

there was inflammation and now theres abnormal projections in the blood vessels. these can cause turbulent flow and shear blood cells.

Question 27

three causes of enlarged lymphnodes

Answer 27

hyperplasia (reactive), lymphadenitis (inflammation), neoplasia

Question 28

generally what causes small lymph nodes

Answer 28

atrophy, necrosis, hypoplasia. can be IM, viral, etc

Question 29

when you find an enlarged (hyperplasia) LN what do you do

Answer 29

look for other enlarged LN, generalized = systemic localized = local draining

Question 30

after removal, what does a hyperplastic LN vs a neoplastic LN look like

Answer 30

hyperplastic: mottled, painful neoplastic: homogenous, monpainful

Question 31

causes of lymphadenitis

Answer 31

streps (strangles), c. pseudotuberculosis (CL), histo/myco

Question 32

anorexia, fever, mucopurulent discharge, young horse, enlarged ln

Answer 32

strangles. bacti climbs to the LN and abscesses

Question 33

what can CL be confused as

Answer 33

TB. mycobacterium bovis in cattle

Question 34

If you have an enlarged LN and suspect lymphoma what should you do.

Answer 34

look for other LN enlargement, check for hypercalcemia (PTHrP), FeLV or BLV virus, check spleen, mediastinum

Question 35

difference between an acute vs chronic infarction

Answer 35

acute: red and congested, chronic: grey

Question 36

you find splenomegaly. what do you need to do

Answer 36

decide if diffuse or multifocal. helps with ddx

Question 37

you necropsy/remove a diffusely enlarged spleen. what do you want to do

Answer 37

cut it to see if it oozes or if its meaty. meaty means cellular infultration

Question 38

what causes an oozing spleen

Answer 38

barbiturates, acute septicemia from salmonellosis/anthrax

Question 39

DDx for meaty splenomegaly

Answer 39

macrophage hyperplasia- IMHA, chronic disease neoplasia- round cell, lymphoma

Question 40

nodular splenomegaly ddx

Answer 40

dogs- hyperplasia, hematoma, hemangiosarc, hemangioma, lymphoma/mets cats: MCT, lymphoma, hemangiosarc

Question 41

where do we find hemangiosarc

Answer 41

heart, skin, lung, liver, spleen

Question 42

fatal hemorrhagic pneumonia in dogs in shelters

Answer 42

strep. zoo

Question 43

pneumonia outbreaks in shelter cats

Answer 43

bordetella

Question 44

equine multinodular pulmonary fibrosis

Answer 44

EHV 5 (EHV 1 causes fibrinotracheitis)

Question 45

rhinotracheitis in cats

Answer 45

FeHV1

Question 46

TB in horses

Answer 46

mycobacterium bovis

Question 47

diffuse granulomatous pneumonia dog and cats

Answer 47

fungal. cats- also FIp

Question 48

three types of lymphadenitis suppurative caseous granulomatous. who causes what

Answer 48

suppurative- streps (strangles) caseous- Corrny. pseudotb granulomatous- histo, leishmania

Question 49

what % of dogs with lymphoma have hypercalcemia

Answer 49

15%

Question 50

what are two causes of splenic infarcts

Answer 50

thromboembolism bacterial/viral infection

Question 51

two causes of cellular infultration of a spleen

Answer 51

macrophage hyperplasia ---IMHA, chronic infection neoplasia

Question 52

beige firm waxy spleen

Answer 52

splenic amyloidosis

Question 53

hemolymphs are common in who

Answer 53

ruminates and a few horses