Tumid lupus erythematosus: Criteria for classification with immunohistochemical analysis

Abstract

Comprehensive clinical, histopathologic, and immunohistochemical criteria for the classification of tumid LE are proposed that differentiate tumid LE from other cutaneous disorders that may be clinically and histologically indistinguishable. The chronic, benign course indicates that tumid LE be classified as a form of chronic cutaneous LE, although it may be a cutaneous feature of systemic LE.