butterfly rash

rash (rash) a temporary eruption on the skin.

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butterfly rash  a skin eruption across the nose and adjacent areas of the cheeks in the pattern of a butterfly, as in lupus erythematosus and seborrheic dermatitis.

diaper rash  irritant dermatitis in infants on the areas covered by the diaper, usually due to soiling or fungal contamination.

drug rash  see under eruption.

heat rash  miliaria rubra.

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but·ter·fly rash (btr-fl)

n.

A scaling lesion that appears on each cheek and is joined by a narrow band across the nose, seen in lupus erythematosus and seborrheic dermatitis.

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butterfly rash,

an erythematous eruption of both cheeks joined by a narrow band of rash across the nose. It may be seen in lupus erythematosus, rosacea, and seborrheic dermatitis.

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butterfly rash

Internal medicine An often photosensitive facial rash typical of SLE, which consists of an erythematous blush or scaly reddish patches on the malar region, extending over the nasal bridge–the facial 'seborrheic' region, potentially becoming bullous and/or secondarily infected; 'butterfly' region rashes have been described in AIDS, ataxia-telangiectasia, Bloom syndrome, Cockayne syndrome, dermatomyositis, erysipelas, pemphigus foliaceus, pemphigus erythematosus, riboflavin deficiency, tuberous sclerosis with smooth, red-yellow papules–adenoma sebaceum, appearing by age 4 at the nasolabial fold. See Systemic lupus erythematosus.