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Difference between revisions of "Inflammatory skin disorders"
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Inflammatory skin disorders (view source)
Revision as of 02:52, 18 December 2011
, 02:52, 18 December 2011→Microscopic
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===Microscopic=== | ===Microscopic=== | ||
Features:<ref name=Ref_PCPBoD8_603>{{Ref PCPBoD8|603}}</ref> | Features:<ref name=Ref_PCPBoD8_603>{{Ref PCPBoD8|603}}</ref> | ||
*Acanthosis + long rete ridges | *Acanthosis + long rete ridges (psoriasiform hyperplasia). | ||
*Parakeratosis. | *Parakeratosis. | ||
*Dilated vessels in superficial dermis (give rise to ''Auspitz sign''). | *Dilated vessels in superficial dermis (give rise to ''Auspitz sign''). | ||
| Line 215: | Line 215: | ||
*PMNs in parakeratotic stratum corneum (Munro microabscess). | *PMNs in parakeratotic stratum corneum (Munro microabscess). | ||
*Thinning of the suprapapillary plate. | *Thinning of the suprapapillary plate. | ||
**The epidermis between rete ridges is thinner than in the normal adjacent skin. | **The epidermis between rete ridges is thinner than in the normal adjacent skin - '''key feature'''. | ||
DDx: | |||
*Dermatophytosis ([[Fungi|fungal infection]]). | |||
*Drug reaction. | |||
==Lichen striatus== | ==Lichen striatus== | ||