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Small Animal Dermatology Q&A 09 (view source)
Revision as of 10:00, 6 June 2011
, 10:00, 6 June 2011Created page with "{{Template:Manson Moriello}} centre|500px<br>centre|500px <br /> '''A cat was pres..."
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[[Image:Small Animal Dermatology Q&A 09a.jpg|centre|500px]]<br>[[Image:Small Animal Dermatology Q&A 09b.jpg|centre|500px]]
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'''A cat was presented for lameness. Note the swollen skin around the base of the nails.'''
<br />
<FlashCard questions="3">
|q1=What is this condition called, and what are the most common causes of this condition in the cat?
|a1=
Paronychia. The most common causes of paronychia in the cat are
*trauma,
*dermatophytosis,
*''Malassezia'' dermatitis,
*demodicosis,
*''Notoedres'' mites, and
*PF.
|l1=
|q2= What diagnostic tests are indicated?
|a2=
A Wood’s lamp examination is optional, but a dermatophyte culture should be prepared. Exudate from the nail base should be collected, smeared on a glass microscope slide, heat fixed, and stained. <br><br>
Malassezia dermatitis is an under-recognized skin disease in cats, and the most common presentation is an accumulation of black debris under the nail. <br><br>
Bacterial culture and sensitivity should also be done, along with a skin scraping using mineral oil to look for mites. A skin biopsy may be needed for a definitive diagnosis.
|l2=
|q3=A smear of the exudate from the nail bed is shown. How could these findings be described, and what is the most likely diagnosis?
|a3=
*There is neutrophilic inflammatory exudate with large basophilic epithelial cells.
*These cells are compatible with what would be described as ‘acantholytic cells’.
*These are epidermal cells from the stratum spinosum that have been shed into the pustular exudate.
*These cells are often seen in patients with PF and in patients with severe deep pyoderma.
*In PF, the cells are usually very numerous and often present in rafts of 6–8 cells.
*In patients with deep pyoderma, the number of cells adhered together are fewer, often just two or three. <br><br>
This was a case of paronychia due to a ''Microsporum canis'' infection.
|l3=
</FlashCard>
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[[Category:Small Animal Dermatology Q&A]]
[[Image:Small Animal Dermatology Q&A 09a.jpg|centre|500px]]<br>[[Image:Small Animal Dermatology Q&A 09b.jpg|centre|500px]]
<br />
'''A cat was presented for lameness. Note the swollen skin around the base of the nails.'''
<br />
<FlashCard questions="3">
|q1=What is this condition called, and what are the most common causes of this condition in the cat?
|a1=
Paronychia. The most common causes of paronychia in the cat are
*trauma,
*dermatophytosis,
*''Malassezia'' dermatitis,
*demodicosis,
*''Notoedres'' mites, and
*PF.
|l1=
|q2= What diagnostic tests are indicated?
|a2=
A Wood’s lamp examination is optional, but a dermatophyte culture should be prepared. Exudate from the nail base should be collected, smeared on a glass microscope slide, heat fixed, and stained. <br><br>
Malassezia dermatitis is an under-recognized skin disease in cats, and the most common presentation is an accumulation of black debris under the nail. <br><br>
Bacterial culture and sensitivity should also be done, along with a skin scraping using mineral oil to look for mites. A skin biopsy may be needed for a definitive diagnosis.
|l2=
|q3=A smear of the exudate from the nail bed is shown. How could these findings be described, and what is the most likely diagnosis?
|a3=
*There is neutrophilic inflammatory exudate with large basophilic epithelial cells.
*These cells are compatible with what would be described as ‘acantholytic cells’.
*These are epidermal cells from the stratum spinosum that have been shed into the pustular exudate.
*These cells are often seen in patients with PF and in patients with severe deep pyoderma.
*In PF, the cells are usually very numerous and often present in rafts of 6–8 cells.
*In patients with deep pyoderma, the number of cells adhered together are fewer, often just two or three. <br><br>
This was a case of paronychia due to a ''Microsporum canis'' infection.
|l3=
</FlashCard>
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[[Category:Small Animal Dermatology Q&A]]