Lab final- Hematopoetic

Question 1

Calf

Answer 1

normal- since it’s a calf

Haemopotetically active bone marrow

The bone marrow has a uniform consistency and its red to dark red. These responses are characteristic of hemapoteically ACTIVE BONE MARROW

Question 2

Answer 2

1. icetrus- yellowish discoloration
2. Spleenmegaly

The mareked yellow discoloration, most strikely visible in the SQ fat is from high concentration of serum bilirubin produced as a result of the hemolytic anemia

Question 3

Dog- cause and associated lesion

Answer 3

Cause- canine parvovirus 2

associated lesion- lymphoid depletion; bone marrow depletion

cat- panleukopenia virus

Question 4

MDx

Answer 4

Mdx: Metastatic melanoma

also can be shown in brain

Question 5

Horse- MDx:

Answer 5

Muscle hemanigosarcoma

invading bone and bone marrow

Question 6

Llama, adult: MDx

Answer 6

MDx: multi-focal granulomatous osteomyelitis

disease- TB

Question 7

Goat MDx

Answer 7

MDx: lymphosarcoma

red marrow and white fat marrow is being displaced along the medullary cavity and by a more yellow color tumor tissue near epiphysis

Question 8

Cow: MDx; Etiology

Answer 8

MDx: serous atrophy of bone marrow fat

Et: cachexia, starvation, chronic wasting disease

Question 9

Dog- MDx

Answer 9

MDx: multiple myeloma

osteolytic lesions (punched out)

Clin path- monoclonal gammopathy, Bence Jones protinuria, hypercalcemia, cytopenia

Question 10

Dog- MDx

Answer 10

MDx: lymphadenitis

lymphnode, dog

Question 11

Answer 11

Increase in macrophages

Acute lymphadneitis (early), lymphnode, medulla, dog

Increase in numbr of histocytes and neutrophils

Question 12

Horse: MDx; name of disease, etiology

Answer 12

MDx: acute suppurative lymphenitis

disease name- equine strangles

Etx: streptococcus equi, spp, equi

dorsal view of larynx, left and right retropharyneal LN

Question 13

Sheep: MDx, Etx

Answer 13

chronic caseous lymphadentitis

Corynebacterium pseudotuberculosis lymphnode

in a dog- same Edx

Question 14

Ox: MDx, name of disease

Answer 14

Mycobacterium bovis

LN

Chronic caseous inflammation

Not a lot of pus

Question 15

Ox

Answer 15

Johne’s disease (Mycobacterium avium spp. paratuberculous), lymphnode several non-caseating granulomas (pale areas) have replaced teh normal lymphoid tissue (blue)

Mescenteric LN

Question 16

Cat: MDx

Answer 16

MDx: Lymphoma (lymphosarcoma)

Cranial mediastinal LN associated with FeLV

Question 17

Pig

Answer 17

Jowl abscess, pig, mandibular LN

Strep. porcinus

Question 18

Cow- MDx

Answer 18

Normal is the white the pink is the tumor

MDx: lymphoma (lymphosarcoma) vertebral canal, epidural space

Question 19

Canine popliteal lymph node aspirate:

Name the disease

Answer 19

Leishmania

Granulomatous lymphadenitis

Likes to infect macrophages

Question 20

Cat: MDx

Answer 20

chronic lymphadenitis

cryptococcus (Cryptococcus gratti)

Mandibular LN

Question 21

Goat: Et

Answer 21

Corynebacterium pseudoth

Diffuse granulatamous lymphadentisi (caseous lymphadentis)

Greenish-eosinophils

Question 22

Ox MDx

Answer 22

Peyer’s patch necrosis,

diffuse, severe, acute, illeum

Disease: muscosal disase- BVD

Question 23

Dog- MDx

Answer 23

siderotic plaques

Nodular hyperplasia (incised)

Question 24

Answer 24

Hemosiderin

Question 25

Answer 25

Meaty spleen

Histocytic sarcoma, lymphoma, plasma cell tumor, mast cell tumor, splentitis, amyloidosis

Question 26

Answer 26

chronic (b/c white); splenic infaraction, spleen compare to acute

Question 27

Answer 27

spleenic congestion

african swine fever

Question 28

Answer 28

spleen, brain metastatic hemanigosarcoma

Question 29

Answer 29

Marek’s disease

Multiple lymphoid tumors, liver and spleen also peripheral nerves, kidneys

Question 30

Answer 30

Thymic lymphosarcoma

Question 31

Answer 31

Mutifocal petechial to eccomotic haemorrage thymus

Question 32

Answer 32

Healed tramatic rupture

Question 33

Answer 33

mescenteric LN; lymphoma