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Lichen planus Lichen planus-like keratosis 1. Compact orthokeratosis; no parakeratosis usually 1. Orthokeratosis, often compact, and focal parakeratosis 2. Granular zone thickened focally and in wedge shape 2. Granular zone thickened and thinned focally; no wedge shape of granular zone present consistently 3. Uneven, jagged acanthosis 3. Variable acanthosis, but epidermis sometimes thinned; when thickened, […]