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| Fig. 22.2 Subacute cutaneous lupus erythematosus. A, Annular lesions on the upper arms. B, Erythematous papules and plaques on the back. |
This type of cutaneous LE was first described and characterized in the late 1970s. These patients have an eruption that is more persistent than that of ACLE, lasting weeks to months or longer. The lesions of SCLE consist of scaly, superficial, inflammatory macules, patches, papules, and plaques that are photodistributed, particularly on the upper chest and back, lateral neck, and dorsal arms and forearms. Several different morphologic types of SCLE have been described: annular, serpiginous, and two types of papulosquamous lesions, psoriasiform and pityriasiform (Fig. 22-2). Some patients have more than one morphologic type of lesion.
Sontheimer RD: Subacute cutaneous lupus erythematosus: 25-year evolution of a prototypic subset (subphenotype) of lupus erythematosus defined by characteristic cutaneous, pathological, immunological, and genetic findings,
Autoimmun Rev 4:253–263, 2005.
