The Full Form of DLE is Discoid lupus erythematosus.

Discoid lupus erythematosus is the most common type of chronic cutaneous lupus, an autoimmune skin condition on the lupus erythematosus spectrum of illnesses. It presents with red, inflamed, coin-shaped patches of skin with a scaling and crusty appearance, most often on the scalp, cheeks, and ears. Hair loss may occur if the lesions are on the scalp. The lesions can then develop severe scarring, and the centre areas may appear lighter in color with a rim darker than the normal skin. These lesions can last for years without treatment.