*Skin biopsy reveals superficial perivascular dermatitis with psoriasiform epidermal hyperplasia.
*Skin biopsy reveals superficial perivascular dermatitis with psoriasiform epidermal hyperplasia.
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*The superficial dermis usually shows mild to moderate mucinous degeneration, and eosinophils and neutrophils are the predominant inflammatory cell types.
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*The superficial dermis usually shows mild to moderate mucinous degeneration, and eosinophils and [[Neutrophils - WikiBlood|neutrophils]] are the predominant inflammatory cell types.
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*Intra-epidermal pustules containing eosinophils and neutrophils are prominent in early lesions.
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*Intra-epidermal pustules containing eosinophils and [[Neutrophils - WikiBlood|neutrophils]] are prominent in early lesions.
*Parakeratotic hyperkeratosis is usually prominent.
*Parakeratotic hyperkeratosis is usually prominent.