psoriasis


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  • Histology

    • parakeratosis with PMNs in stratum corneum
    • loss of granular layer
    • finger like rete
    • dilated capillaries in dermal papillae
    • perivascular lymphocytes

  • Subtypes

    • plaque (most common)
    • guttate (smaller papules, thinner)
    • pustular
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