🔹Wickham striae – Interlacing white lines are the hallmark of Reticular oral lichen planus.
🔹Nikolsky’s sign is the hallmark of Pemphigus vulgaris.
🔹Target or iris lesions with central clearing are the hallmark of erythema multiforme.
🔹Pemphigus vulgaris lesions demonstrate a characteristic intraepithelial clefting or vesiculation above the basal cell layer with a characteristic “tombstone” appearance.
🔹Keratotic lesions: These are small-raised, round white papules of pinhead size with a flattened surface and usually present on the attached gingiva.
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