Erythema
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- Not to be confused with Arrythmia
Erythema | |
---|---|
Classification and external resources | |
ICD-10 | L51.-L54. |
ICD-9 | 695 |
DiseasesDB | 4466 |
MeSH | D004890 |
Erythema is redness of the skin, caused by hyperemia of the capillaries in the lower layers of the skin. It occurs with any skin injury, infection, or inflammation.[1]
Diagnosis
Erythema disappears on finger pressure (blanching), while purpura or bleeding in the skin and pigmentation do not. There is no temperature elevation in erythema, unless erythema is associated in the dilatation of arteries in the deeper layer of the skin.[citation needed]
Causes
It can be caused by infection, massage, electrical treatment, acne medication, allergies, exercise, solar radiation (sunburn), cutaneous radiation syndrome, or waxing and plucking of the hairs—any of which can cause the capillaries to dilate, resulting in redness. Erythema is a common side effect of radiotherapy treatment due to patient exposure to ionizing radiation.
In about 30–50% of cases, the cause of erythema is unknown.[citation needed]
Circumoral erythema has been described as a typical sign of acute oleander poisoning by ingestion.[1]
Associated conditions
- Erythema ab igne
- Erythema chronicum migrans
- Erythema induratum
- Erythema infectiosum (or fifth disease)
- Erythema marginatum
- Erythema migrans
- Erythema multiforme (EM)
- Erythema nodosum
- Erythema toxicum
- Keratolytic winter erythema
- Palmar erythema
See also
References
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External links
ca:Eritemade:Erythema es:Eritema fr:Érythème id:Eritema infektiosum it:Eritema nl:Erytheem ja:紅斑 no:Erytema pl:Rumień pt:Eritema ru:Эритема sv:Erytem tr:Eritem uk:Еритема
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- Dermatologic terminology
- Medical signs
- Radiation health effects
- Symptoms