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Skin Biopsy for Diagnosing Discoid Lupus Erythematosus
Published on: June 10, 2025
Lupus tumidus: a report of two cases
Bianca Pinheiro Bousquet Muylaert1, Bruna Backsmann Braga1, Eduarda Braga Esteves1
1Universidade de Santo Amaro (UNISA) - São Paulo (SP), Brazil.
Abstract:
Lupus tumidus is considered a rare subtype of chronic cutaneous lupus erythematosus, characterized by erythema and bright urticarial erythematous-violaceous lesions that leave no scars after regression. Histopathology reveals perivascular and periannexal lymphohistiocytic infiltrates in the papillary and reticular dermis and interstitial mucin deposition. Treatment is based on photoprotection, topical corticosteroids and antimalarials. We report two cases of lupus tumidus, which deserve attention for their low frequency in the literature, in addition to their relevance as a differential diagnosis among dermatologic disorders.
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