FIGURE 3.
Classic lichen planus with appendageal involvement: hyperkeratosis, hypergranulosis, irregular acanthosis, and dense lymphocytic infiltrate, with involvement of the hair follicle (A), H&E ×40, and wedge shaped hypergranulosis (thin arrow), spiky acanthosis, and involvement of the eccrine gland (thick arrow) (B), H&E ×100.