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Histopathology of a biopsy from the right shoulder with (A) epidermal spongiosis and dermal neutrophilic inflammation with occasional eosinophils (hematoxylin-eosin staining; original magnification, ×200) and (B) scattered subcorneal neutrophilic pustules. (Hematoxylin-eosin staining; original magnification, ×400.)
