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| [http://commons.wikimedia.org/wiki/File:Pemphigus_vulgaris_-_low_mag.jpg (WC)] | | [http://commons.wikimedia.org/wiki/File:Pemphigus_vulgaris_-_low_mag.jpg (WC)] | ||
|- | |- | ||
| Interface | | [[Interface_dermatitides|Interface]] | ||
| inflammation at DE junction | | inflammation at DE junction | ||
| -vacuolar (minimal)<br>-lichenoid (band-like) | | -vacuolar (minimal)<br>-lichenoid (band-like) | ||
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| | | | ||
|- | |- | ||
| Nodular & diffuse | | [[Nodular and diffuse dermatitides|Nodular & diffuse]] | ||
| intradermal inflammatory infiltrate - nodular and/or diffuse | | intradermal inflammatory infiltrate - nodular and/or diffuse | ||
| -neutrophic<br>-lymphocytic<br>-plasmic<br>-eosinophilic<br>-histocytic | | -neutrophic<br>-lymphocytic<br>-plasmic<br>-eosinophilic<br>-histocytic | ||
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| [http://commons.wikimedia.org/wiki/File:Cutaneous_T-cell_lymphoma_-_very_high_mag.jpg (WC)] | | [http://commons.wikimedia.org/wiki/File:Cutaneous_T-cell_lymphoma_-_very_high_mag.jpg (WC)] | ||
|- | |- | ||
| Spongiotic | | [[Spongiotic_dermatitides|Spongiotic]] | ||
| small empty spaces between keratinocytes - can see squamous bridges (best seen at high power); +/- quasi-microvacuolar appearance | | small empty spaces between keratinocytes - can see squamous bridges (best seen at high power); +/- quasi-microvacuolar appearance | ||
| -acute<br>-subacute<br>-chronic | | -acute<br>-subacute<br>-chronic | ||
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| [http://commons.wikimedia.org/wiki/File:Churg-Strauss_syndrome_-_high_mag.jpg (WC)] | | [http://commons.wikimedia.org/wiki/File:Churg-Strauss_syndrome_-_high_mag.jpg (WC)] | ||
|- | |- | ||
| Perivascular | | [[Dermatitides_with_perivascular_inflammation|Perivascular]] | ||
| inflammation around vessels | | inflammation around vessels | ||
| -neutrophilic<br>-lymphocytic<br>-mastocytic<br>-eosinophilic | | -neutrophilic<br>-lymphocytic<br>-mastocytic<br>-eosinophilic | ||
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| | | | ||
|- | |- | ||
| Psoriasiform | | [[Psoriasiform dermatitides|Psoriasiform]] | ||
| epidermal thickening<br>and long rete ridges | | epidermal thickening<br>and long rete ridges | ||
| -regular<br>-irregular | | -regular<br>-irregular | ||
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*Linear '''I'''gA disease. | *Linear '''I'''gA disease. | ||
== | ==Dermatitides with perivascular inflammation== | ||
===Lymphocytes=== | ===Lymphocytes=== | ||
Lymphocytes (tightly cuffed):<ref name=pmid18418089/> | Lymphocytes (tightly cuffed):<ref name=pmid18418089/> | ||
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*[[Giant cell arteritis]]. | *[[Giant cell arteritis]]. | ||
==Nodular and diffuse== | ==Nodular and diffuse dermatitides== | ||
===Neutrophils=== | ===Neutrophils=== | ||
====With pus (suppurative)==== | ====With pus (suppurative)==== |
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