Localized scratch dermatitis, also known as lichen simplex chronicus or neurodermatitis, is a chronic itchy skin condition. It is believed that their is a strong psychogenic cause to localized scratch dermatitis and contrary to common beliefs, it has not been linked to any allergies or allergic causes.
Lichen simplex chronicus or neurodermatitis has a characteristic appearance of thick, dark discoloration of the skin occurring in plaques and at times may be misdiagnosed as psoriasis vulgaris.
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