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Also known as: '''''Canine ear margin seborrhea'''''

Also known as: '''''Canine ear margin seborrhea'''''

Canine ear margin dermatosis is a relatively common '''abnormality in cornification''', with lesions confined to the margins of the pinnae.

Canine ear margin dermatosis is a relatively common '''abnormality in cornification''', with lesions confined to the margins of the pinnae.

It shows marked predilection for the '''Dachshund''' and a hereditary basis is suspected. It is also present in other breeds of dogs with pendulous ears and it may be a clinical feature of hypothyroidism.

It shows marked predilection for the '''Dachshund''' and a hereditary basis is suspected. It is also present in other breeds of dogs with pendulous ears and it may be a clinical feature of [[hypothyroidism]].

Age and sex predilections have not been noted.

Age and sex predilections have not been noted.

==Clinical signs==

==Clinical Signs==

Pruritus is rarely seen, in contrast with the early signs of sarcoptic mange.

Pruritus is rarely seen, in contrast with the early signs of [[Sarcoptic Mange|sarcoptic mange]].

There is variable '''alopecia, scaling, crusting and keratinous debris at the pinnal margins'''. The exudate can be greasy or waxy, tenacious to exfoliative and varies from yellow to brown.

There is variable '''[[alopecia]], scaling, crusting and keratinous debris at the pinnal margins'''. The exudate can be greasy or waxy, tenacious to exfoliative and varies from yellow to brown.

A '''waxy seborrheic odour''' is often present and keratin mats the remaining hair.

A '''waxy seborrheic odour''' is often present and keratin mats the remaining hair.

In severe cases, '''surgical debridement''' might be necessary to stop the development of fissuring, and '''laser surgery''' is also helpful.

In severe cases, '''surgical debridement''' might be necessary to stop the development of fissuring, and '''laser surgery''' is also helpful.

==References==

==References==

Gross, T. L. (2005) '''Skin diseases of the dog and cat: clinical and histopathologic diagnosis''' ''Wiley-Blackwell''

Gross, T. L. (2005) '''Skin diseases of the dog and cat: clinical and histopathologic diagnosis''' ''Wiley-Blackwell''

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[[Category:Dermatological Diseases - Dog]]

[[Category:Integumentary System - Pathology]]

[[Category:Expert Review - Small Animal]]