Atopic Dermatitis Chẩn đoán phân biệt

Other conditions can mimic atopic dermatitis and thus must be ruled out like contact dermatitis, which may co-exist with atopic dermatitis. The defective epidermal barrier in patients with atopic dermatitis allows entry of irritants and increased allergen permeation which leads to sensitization resulting in the potential development of allergic contact dermatitis in subsequent exposures. Other conditions include ichthyosis, dermatitis herpetiformis, psoriasis, scabies, seborrheic dermatitis, collagen diseases (systemic lupus erythematosus, dermatomyositis), keratosis pilaris, dermatomycosis, nummular dermatitis, and pityriasis alba.

Less common conditions that can mimic atopic dermatitis include cutaneous lymphoma, mycosis fungoides, primary immunodeficiency, and Netherton syndrome.