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Intraepithelial, in this context, usually is synonymous with intraepidermal, both surface and infundibular, although in some instances, particularly pemphigus vulgaris, adnexal epithelium also may be affected. The prototype for intraepithelial fluorescence is pemphigus vulgaris. That malady is characterized by predominance of IgG evident between epithelial cells (“intercellular” or “cell surface” fluorescence) (Fig. 8.1). In most […]