Difference between revisions of "Allergic Contact Dermatitis"
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(Created page with "*Usually involves Type IV reaction *Pruritic lesions with self-inflicted trauma *At areas in contact with allergen *Grossly: **Erythema, papules, +/-...") |
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| − | *Usually involves [[Type IV Hypersensitivity|Type IV reaction]] | + | *Usually involves [[Type IV Hypersensitivity|Type IV reaction]] not just [[Contact Dermatitis|contact dermatitis]] |
*Pruritic lesions with self-inflicted trauma | *Pruritic lesions with self-inflicted trauma | ||
*At areas in contact with allergen | *At areas in contact with allergen | ||
Revision as of 16:43, 22 February 2011
- Usually involves Type IV reaction not just contact dermatitis
- Pruritic lesions with self-inflicted trauma
- At areas in contact with allergen
- Grossly:
- Erythema, papules, +/- vesicles, exudation -> crusts
- If chronic, lichenification, hyperpigmentation, alopecia
- Microscopically:
- Spongiotic superficial perivascular dermatitis
- Mononuclear cells
- If chronic, epidermal hyperplasia
- May involve eosinophils