Serial sections show suprabasal clefting of the epidermis with related intradermal neutrophilic infiltrate. There is associated mild dermal perivascular mononuclear inflammatory infiltrates. No evidence of specific granulomas. Picture is more consistent with IgA pemphigus.
White macerated erythematous plaque at submammary area, punch biopsy.
Four skin ellipses collectively measuring 0.7x0.6x0.3 cm, totally embedded.
Skin Punch Biopsy:
COMMENT: