Which autoimmune disease is characterized by well-demarcated erythematous patches with a silver-white scale on the lesions?

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Psoriasis is characterized by well-demarcated erythematous patches, with a silver-white scale on the lesions. Pemphigus vulgaris presents with superficial "ragged" erosions and ulcerations of a haphazard distribution throughout the oral cavity. Cicatricial pemphigoid presents as vesicles or bullae that rupture, leaving large areas of ulceration and denuded mucosa throughout the oral cavity. Discoid lupus erythematosus presents with a chronic cutaneous erythematous rash or plaques, but do not have silver-white scales on the lesions. Chronic cutaneous lupus erythematosus presents as disk-shaped, round cutaneous lesions, but do not have silver-white scales on the lesions

Which Autoimmune Disease Is Characterized by Well-Demarcated Erythematous Patches with a Silver-White