Acute Cutaneous Lupus Erythematosus (ACLE) Clinical Presentation
- Author: Ivan D Camacho, MD; Chief Editor: William D James, MD more...
History
Primary lesions in acute cutaneous lupus erythematosus include the following:
- Confluent erythema and edema
- Erythematous macules and papules that eventually become confluent
- Bullous lesions resembling TEN
- Morbilliform macules and papules in a generalized, photo-distributed pattern
The malar eminence (representing the wings of the butterfly) and the nasal bridge (representing the body of the butterfly) typically are involved. Other sites of involvement include the forehead, periorbital area, and sides of the neck. Occasionally, a generalized photo-induced eruption may occur.
Associated findings include superficial ulceration primarily involving the posterior surface of the hard palate. Occasionally, buccal and gingival mucosae and the tongue may be involved.
Note that acute cutaneous lupus erythematosus may coexist with other lupus erythematosus–specific skin diseases. Localized acute cutaneous lupus erythematosus lesions have been observed in 20% of subacute cutaneous lupus erythematosus patients; however, the occurrence of acute cutaneous lupus erythematosus with chronic cutaneous lupus erythematosus is unusual.
Physical Examination
The most common presentation of acute cutaneous lupus erythematosus is a red macular eruption involving the malar area. (See the image below.) The forehead, periorbital area, and neck also may be involved, representing a photodistribution. Occasionally, unilateral involvement may occur.
Erythema involving the malar area, forehead, and neck. Note sparing of some of the creases. Less commonly, acute cutaneous lupus erythematosus presents as a generalized photosensitive eruption, while more rarely, patients present with widespread blistering simulating TEN. TEN-like cutaneous lupus erythematosus (which is believed to be a phototoxic reaction and may be triggered by intensive ultraviolet exposure) must be differentiated from drug-induced TEN occurring in a patient with lupus erythematosus. The term acute syndrome of apoptotic pan-epidermolysis (ASAP) has been proposed for the TEN-like cutaneous injury pattern that can occur in settings of lupus erythematosus, where Fas-Fas ligand interactions are implicated in the massive keratinocyte apoptosis.[3] (See the image below.)
Toxic epidermal necrolysis–like eruption. Patients with acute cutaneous lupus erythematosus frequently experience superficial ulceration of the oral and nasal mucosae. These lesions may produce extreme discomfort in some patients, although the lesions may be entirely painless in others. The posterior surface of the hard palate is the site affected most frequently; however, the gingival, buccal, and lingual mucosae also may be involved.
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