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**Epidermal hyperplasia, spongiosis, crusts
**Epidermal hyperplasia, spongiosis, crusts
**Superficial perivascular dermatitis
**Superficial perivascular dermatitis
==Pathogenesis==
Infection begins on the ear tips and spreads over the body [[Parasitic skin infections - Pathology#Notoedric mites|a notoedric skin infestation]]
*Causes dermatitis
*Burrowing of females damages keratinocytes leading to cytokine release
*Hypersensitivity reaction may occur
**Eosinophils[[Category:To_Do_-_Clinical]]
**Eosinophils[[Category:To_Do_-_Clinical]]