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Updated: Jun 3, 2026

Skin Biopsy for Diagnosing Discoid Lupus Erythematosus
Published on: June 10, 2025
Porphyria cutanea tarda and systemic lupus erythematosus
Leticia Haendchen1, Juliana Merheb Jordão, Osvaldo Haider
1Service from the Evangelical University Hospital of Curitiba, PR, Brazil.
Abstract:
The co-existence of systemic lupus erythematosus and porphyria although rare has been known for a long time. This association forces the physician to make a careful differential diagnosis of the bullous lesions that might appear in such patients and to be careful when prescribing certain drugs such as chloroquine. This drug, when used in the regular doses for treating lupus, may cause hepatotoxicity in patients.suffering from porphyria. It is described here the case of a patient with lupus who developed bullous lesions compatible with porphyria cutanea tarda.
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