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Parasitic skin infections - Pathology (view source)

406 bytes removed , 10:46, 30 June 2010

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==[[Protozoal Dermatosis]]==

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==~~Ticks==~~

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==[[Tick Dermatosis]]==

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*Local reaction depends on host hypersensitivity and [[~~Ticks|tick's~~]] ~~secretions~~

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*Grossly:

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**Focal erosions, erythema, crusted ulcers, sometimes alopecia and nodules

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*Microscopically:

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**Epidermal and dermal necrosis

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**Perivascular of diffuse inflammation and necrotic margins

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**Eosinophils, macrophages and lymphocytes in exudate

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**May form granulomas containing collagenous fibres and lymphoid follicles within dermis

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