Palisaded neutrophilic and granulomatous dermatitis

Umbilicated, erythematous papules on the elbows.

Reproduced with permission from: Ko CJ, Glusac EJ. Noninfectious granulomas. In: Lever's Histopathology of the Skin, 11th ed, Elder DE (Ed), Wolters Kluwer, Philadelphia 2015. Copyright © 2015 Wolters Kluwer Health.

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