erythema
/ˌɛrɪˈθiːmə
/noun [mass noun] Medicine
Superficial reddening of the skin, usually in patches, as a result of injury or irritation causing dilatation of the blood capillaries.Local irritation, erythema, ulceration, and tenderness were common reactions....
- Early application of topical steroids is useful to limit erythema and pruritus.
- The only adverse effects of therapy were transient skin erythema and local hair loss in three irradiated patients.
Derivatives
erythemal
- Clinical studies have shown no difference in the erythemal response to ultraviolet radiation between children and adults.
- A depletion of the ozone column by 25% could increase the erythemal exposure of field scientists or indigenous arctic people by approximately 40% during the spring.
- At 24 hours after irradiation, sites were visually assessed to determine the minimal erythemal dose, i.e. the lowest dose at which erythema was perceptible.
erythematous
- Seborrheic dermatitis causes scaly erythematous skin lesions most often found in nasolabial folds and eyebrow areas.
- Infections such as mastitis and cellulitis tend to be erythematous, tender, and warm to the touch; they may be more circumscribed if an abscess has formed.
- Thrush and erythematous candidiasis are common in patients with immune defects and are often an early manifestation of the immunodeficiency.
erythematic
Origin
Late 18th century: from Greek eruthēma, from eruthainein 'be red', from eruthros 'red'.