butterfly rash


rash

 [rash] a temporary eruption on the skin.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. (See Atlas 2, Part B).diaper rash irritant dermatitis in the area in contact with the diaper in infants, often sparing the genitocrural folds, occurring as a reaction to prolonged contact with urine and feces, retained soaps and topical preparations, and friction and maceration, and commonly associated with secondary bacterial and yeast infections, especially with Candida albicans. Some consider irritation by the ammoniac decomposition products of urine to be a contributing factor. Called also diaper dermatitis.drug rash drug eruption.heat rash miliaria.

but·ter·fly

(bŭt'er-flī), 1. Any structure or apparatus shaped like a butterfly with outstretched wings. 2. A scaling erythematous lesion on each cheek, joined by a narrow band across the nose; seen in lupus erythematosus and seborrheic dermatitis. Synonym(s): butterfly eruption, butterfly patch, butterfly rash

butterfly rash

(bŭt′ər-flī′)n. A lesion on each cheek and across the bridge of the nose, seen in systemic lupus erythematosus and seborrheic dermatitis.
An often photosensitive facial rash typical of systemic lupus erythematosus, which consists of an erythematous blush or scaly reddish patches on the malar region, extending over the nasal bridge—the facial ‘seborrhoeic’ region—potentially becoming bullous and/or secondarily infected
DiffDx, butterfly region rashes 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

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.