dermatologic disorders
Erythroderma
Introduction
Erythroderma is defined as erythema that covers more than 70% of the body surface area. It represents the maximum severity of various skin disorders. Diagnosis is by history and examination. Treatment includes supportive measures and topical care. The various skin disorders that can result in erythroderma are the following: Different types of dermatitis (eg, Atopic Dermatitis (Eczema) , Psoriasis None Pityriasis Rubra Pilaris None Drug Eruptions and Reactions None Lichen Planus None Cutaneous T-cell Lymphomas (CTCL) (particularly Sézary syndrome) Ichthyosis None Erythroderma can develop in patients known to have skin disorders such as those above, but erythroderma can also develop spontaneously in patients without a history of prior skin problems. An older, now only rarely used term for erythroderma isexfoliative dermatitis. However, exfoliative dermatitis is not a dermatitis. Although erythroderma can result from dermatitis, it can also result from many other (nondermatitis) skin conditions. (See also Definition of Dermatitis .) 