Superficial perivascular infiltrate of lymphocytes and extravasated erythrocytes that extend to the epidermis, where there is moderate acanthosis, spongiosis, decreased granular layer, and mounds of parakeratosis.
Reproduced with permission from: Mobini N, Caire ST, Hu S, Kamino H. Noninfectious erythematous, papular, and squamous diseases. In: Lever's histopathology of the skin, 11th ed, Elder DE, Elenitsas R, Johnson B Jr, et al (Eds), Lippincott Williams & Wilkins, Philadelphia 2014. Copyright © 2014 Lippincott Williams & Wilkins.
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