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Difference between revisions of "Inflammatory skin disorders"
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Inflammatory skin disorders (view source)
Revision as of 20:48, 11 September 2012
, 20:48, 11 September 2012→Granuloma faciale: more
m (→Lichen planus: +not confused with) |
(→Granuloma faciale: more) |
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===Microscopic=== | ===Microscopic=== | ||
Features: | Features:<ref name=Ref_Derm198-9>{{Ref Derm|198-9}}</ref> | ||
*Neutrophilic vasculitis - often subtle: | |||
**Neutrophils within blood vessel walls. | |||
**Vessels destruction ([[fibrinoid necrosis]] or nuclear dust). | |||
*Mixed inflammatory superficial dermal infiltrate. | *Mixed inflammatory superficial dermal infiltrate. | ||
**Eosinophils | **Eosinophils, neutrophils, plasma cells, histiocytes. | ||
*Lesion separated from the (normal) epidermis (Grenz zone).<ref name=dermatlas_gf>URL: [http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=1289066309 http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=1289066309]. Accessed on: 23 September 2011.</ref> | *Lesion separated from the (normal) epidermis (Grenz zone).<ref name=dermatlas_gf>URL: [http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=1289066309 http://dermatlas.med.jhmi.edu/derm/indexDisplay.cfm?ImageID=1289066309]. Accessed on: 23 September 2011.</ref> | ||
DDx of chronic fibrosing [[leukocytoclastic vasculitis]]:<ref name=Ref_Derm198-9>{{Ref Derm|198-9}}</ref> | |||
*Granuloma faciale. | |||
*Erythema elevatum diutinum - lacks Grenz zone. | |||
*Inflammatory pseudotumour. | |||
Image: | Image: | ||