Cytology

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Last updated 3:07 PM on 4/14/26
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22 Terms

1
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What are limitations of cytology?

May not be representative (not all cells collected)

Artifacts

2
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<p>The following is an example of what?</p>

The following is an example of what?

Artifacts

-Lysed/ damaged

-Formalin vapors

-contaminated stains

-Ultrasounds gel

-Stains precipitates

3
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<p>What are examples of degenerative lesions?</p>

What are examples of degenerative lesions?

Hematoma, Seroma, cysts - typically in macrophages

4
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Neutrophilic inflammation typically occurs w/ what?

Bacteria - cocci/ rods or mycobacterium and filamentous

5
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We typically see pyogranulomatous inflammation w/ what organisms?

Mycobacterium/ filamentous bacteria

Fungi

6
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We typically see Eosinophilic inflammation w/ what organisms?

Parasites

7
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<p>Identify the organism?</p>

Identify the organism?

Fungal hyphae

8
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<p>Identify the organism and the size?</p>

Identify the organism and the size?

Malassezia pachydermatis - 3x6microns

-skin infections

9
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<p>Identify the organism and the size?</p>

Identify the organism and the size?

Sporothrix schenckii - 3-9microns

-nodular skin dz

10
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<p>Identify the organism and the size?</p>

Identify the organism and the size?

Histoplasmosis capsulatum - 2-4microns

Systemic lesions

11
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<p>Identify the organism and the size?</p>

Identify the organism and the size?

Cryptococcus - 40 microns

Nasal cavity and CNS lesion

Narrow based budding

12
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<p>Identify the organism and the size?</p>

Identify the organism and the size?

Blastomyces dermatitdis

- 8-20 microns

Systemic lesions

13
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<p>Identify the organism and the size?</p>

Identify the organism and the size?

Coccidioides -10-200microns

Systemic lesions

14
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<p>Identify the type of tissue?</p>

Identify the type of tissue?

Epithelial

-High cellularity

-Clumps/ cluster

-Well defined boarders

15
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<p>Identify the type of tissue?</p>

Identify the type of tissue?

Mesenchymal Tissue

-Individual spindled and stellate cells

-Indistinct cell boarder

-Extracellular matrix

16
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<p>Identify the type of tissue?</p>

Identify the type of tissue?

Hemic tissue

-High cellularity

-Round discrete cells

-High N:C ratio

17
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What is the difference between a reactive LN than lymphoma?

Lymphoma has more homogenity in cells b/c one cell line is proliferating

Reactive LN has variation in cell sizes and maturities

18
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<p>Identify the type of round cell neoplasia?</p>

Identify the type of round cell neoplasia?

Transmissible Venereal tumor

-Face/ genitalia area

19
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<p>Identify the type of round cell neoplasia?</p>

Identify the type of round cell neoplasia?

Lymphoma

20
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<p>Identify the type of round cell neoplasia?</p>

Identify the type of round cell neoplasia?

MCT - Eosinophilic w/ granules

21
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<p>Identify the type of round cell neoplasia?</p>

Identify the type of round cell neoplasia?

Plasma cell tumor - basophilic cytoplasm and perinuclear clear zone

22
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<p>Identify the type of round cell neoplasia?</p>

Identify the type of round cell neoplasia?

Histiocytoma - young dog spontaneously regress