Figure 2: Skin biopsy: (a) H and E, 100×: Mild acanthosis, spongiosis, intraepidermal vesicle formation, and a dense perivascular inflammatory infiltrate in dermis composed of lymphocytes, histiocytes, and few eosinophils; (b) H and E, 400×: Intaepidermal spongiotic vesicle formation containing eosinophils (black arrow) with dermal perivascular lymphohistiocytic and eosinophilic inflammatory infiltrate