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| **Mononuclear cells | | **Mononuclear cells |
| **If chronic, epidermal hyperplasia | | **If chronic, epidermal hyperplasia |
− | **May involve [[Eosinophils - WikiBlood|eosinophils]] | + | **May involve [[Eosinophils|eosinophils]] |
| | | |
| ===Atopy=== | | ===Atopy=== |
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| *Microscopically: | | *Microscopically: |
| **Hyperplastic superficial perivascular dermatitis | | **Hyperplastic superficial perivascular dermatitis |
− | **Oedema, [[Mast Cells - WikiBlood|mast cells]], [[Basophils|basophils]], [[Eosinophils - WikiBlood|eosinophils]], [[Lymphocytes|lymphocytes]], histiocytes | + | **Oedema, [[Mast Cells - WikiBlood|mast cells]], [[Basophils|basophils]], [[Eosinophils|eosinophils]], [[Lymphocytes|lymphocytes]], histiocytes |
| **Fibropruritic nodules covered by hyperplastic epidermis | | **Fibropruritic nodules covered by hyperplastic epidermis |
| | | |
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| **Similar to [[Skin Immunologic - Pathology#Pemphigus|Pemphigus vulgaris]] | | **Similar to [[Skin Immunologic - Pathology#Pemphigus|Pemphigus vulgaris]] |
| *Microscopically: | | *Microscopically: |
− | **Bullae containing fibrin, [[Neutrophils|neutrophils]] or [[Eosinophils - WikiBlood|eosinophils]] | + | **Bullae containing fibrin, [[Neutrophils|neutrophils]] or [[Eosinophils|eosinophils]] |
| **Basement membrane forms floor of bullae and roof is lined with basal cells | | **Basement membrane forms floor of bullae and roof is lined with basal cells |
| *Bullae may rupture -> ulcers | | *Bullae may rupture -> ulcers |