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, 16:13, 21 February 2011
*Many [[Skin Immunologic - Pathology|immune-mediated]] cutaneous disease are made worse by sunlight
**Lupus erythematosus
**Dermatomyositis
**Pemphigus erythematosus
*Vasculitis in extremities, especially white-haired horses
*Grossly:
**Erythematous, well circumscribed crusted lesions or hyperkeratotic [[Skin Glossary - Pathology|plaques]]
*Microscopically:
**Vasculitis of superficial dermal vessels
**Thrombi may be seen
[[Category:Integumentary System - Sunlight Damage]]