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23 Cards in this Set
- Front
- Back
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What are problems with nodular disease
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Nodules all look alike
Biopsy nodule need to re biopsy because they did not recognize appropriate differentials |
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What are 3 major categories for lump, bump and draining tract
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-Infectious
-Sterile -Neoplasia |
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How do you diagnose bump/lump
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-Cytology: organisms, cells, inflammation
-Skin biopsy: deep sample / excisional biopsy -Tissue culture: aerobic, fungal, Atypical mycobacteria |
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What are infectious causes
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Bacterial infection - furunculosis / folliclulitis / cellulitis
Demodicosis Dermatophytosis Deep pyoderma |
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What can cause infectious nodules
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+/- immunocompromised
+/- corticosteroid |
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how do you diagnose infectious furunculosis
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Skin scrape
cytology Biopsy for histopath and tissue culture |
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What is history of nocardiosis
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inoculated into puncture wound + immunocompromised patient
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How do you diagnose Nocardiosis
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direct smear
aerobic culture Histopath - gram stain / Acid fast |
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What are uncommon infectious causes
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Abscess
Nocardiosis Yersinia pestis Lepropsy Eumycotic mycetoma |
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what are characteristics of Eumycotic mycetoma
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solitary lesion
fat pad area of ventrum wound contamination |
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How do you diagnose Eumycotic mycetoma
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Histopath
Tissue culture |
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what is pathogenesis of Pythiosis
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Aquatic
invades damaged tissue - cutaneous and GI form |
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What are disease characteristics of
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Intensely pruritic nodule with self mutilation
ulcerated nodule and draining tract |
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How do you diagnose Pythiosis
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Histopath
Tissue culture Serology / PCR assay very poor prognosis |
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What are forms of Sporotrichosis
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Cutaneolymphatic: nodule with corded lymphatics
cutaneous: Multiple firm nodule with drainign tract disseminated is rare in dogs and common in cats |
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How do you diagnose Sporotrichosis
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Cytology (exudate from cats)
Histopathology Macerated tissue culture |
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What is Hx of Blasto dog
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young male hunting breed
exposed inf all water proximity |
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what are CS of Blasto dog
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anorexia
weight loss *coughing ocular disease lameness |
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What are skin lesions from Blasto
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firm papule
nodule draining tract multiple lesion R/o from autoimmune |
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How do you diagnose Blasto
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travel history
signalment Cytology: basophilic, broad based budding, refractile wall |
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what is most common deep fungal infection of cat
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Cryptococcosis
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What are Crypto lesions in cat
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firm swelling bridge of nose
multiple non painful nodule with draining tract on face, pinnae and paws |
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How do you diagnose crypto
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-Cytology:
granulomatous inflammation narrow based budding thin wall within Mo -Histopath -Tissue culture -Serology |
