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Erythroderma is an inflammatory skin disease with redness and scaling that affects nearly the entire cutaneous surface. [1] [2] This term applies when 90% or more of the skin is affected. In ICD-10, a distinction is made between "exfoliative dermatitis" at L26, and "erythroderma" at L53.9.
It often takes on the classical "target lesion" appearance, [7] with a pink-red ring around a pale center. Resolution within 7–10 days is the norm. Individuals with persistent (chronic) erythema multiforme will often have a lesion form at an injury site, e.g. a minor scratch or abrasion, within a week.
Erythema annulare centrifugum (EAC), is a descriptive term for a class of skin lesion [2] presenting redness in a ring form (anulare) that spreads from a center (centrifugum). It was first described by Darier in 1916.
Erythema (Ancient Greek: ἐρύθημα, from Greek erythros 'red') is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. [1] It occurs with any skin injury, infection, or inflammation. Examples of erythema not associated with pathology include nervous blushes. [2]
A maculopapular rash is a type of rash characterized by a flat, red area on the skin that is covered with small confluent bumps. It may only appear red in lighter-skinned people. The term "maculopapular" is a compound: macules are small, flat discolored spots on the surface of the skin; and papules are small, raised bumps.
Discoid lupus erythematosus (DLE) skin lesions first present as dull or purplish red, disc-shaped flat or raised and firm areas of skin. [3] [5] These lesions then develop increasing amounts of white, adherent scale. [3] [5] Finally, the lesions develop extensive scarring and/or atrophy, as well as pigment changes. [3]
The initial sign of about 80% of Lyme infections is an erythema migrans (EM) rash at the site of a tick bite, often near skin folds, such as the armpit, groin, or back of knee, on the trunk, under clothing straps, or in children's hair, ear, or neck. [3] [10] Most people who get infected do not remember seeing a tick or the bite. The EM rash ...
It is a photosensitive skin disorder, a different subtype of cutaneous lupus erythematosus (CLE) from discoid lupus erythematosus (DLE) or subacute CLE (SCLE). [3] LET is usually found on sun-exposed areas of the body. Skin lesions are edematous, urticarialike annular papules and plaques.