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→Eosinophilic granulomas
*Microscopically: acanthosis, spongiosis, erosions or ulceration, predominantly eosinophilic dermatitis, possibly areas of collagen degeneration
*Microscopically: acanthosis, spongiosis, erosions or ulceration, predominantly eosinophilic dermatitis, possibly areas of collagen degeneration
===Eosinophilic granulomas===
===Eosinophilic granulomas===
*Involves cats, dogs, horses
*Collagen degeneration in lesions os eosinophil degranulation
*Often involved in reaction to parasites, foreigh bodies or mas cell tumours
*Grossly:
**Papules, nodules, plaques, ulcers in skin
**Nodules or ulcers in oral mucosa of cats and dogs or on foot pads of cats
*Microscopically:
**Nodular dermatitis or stomatitis
**Fragments of degenerated collagen surrounded by eosinophils and macrophages
===Eosinophilic folliculitis and furunculosis===
===Eosinophilic folliculitis and furunculosis===