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Lupus ; 27(8): 1383-1386, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29631513

RESUMO

A 29-year-old woman with a 1.5 year history of photosensitive skin lesions on her hands presented with a malar rash, bullous lesions on her hands, and was diagnosed with subacute lupus erythematosus after serologies revealed a positive antinuclear antibody test (1:2560), and antibodies to Ro/SSA and dsDNA. Hydroxychloroquine (400 mg/day) was prescribed and the patient developed severe drug-induced liver injury. Biopsy of her bullous skin lesions was consistent with porphyria cutanea tarda, as were her serological and urinary exams. She was successfully treated with therapeutic phlebotomy. This case identifies porphyria cutanea tarda as an important differential diagnosis for the rheumatologist to consider when evaluating patients with bullous skin lesions. Hydroxychloroquine in lower doses is an effective treatment for porphyria cutanea tarda; at doses used to treat systemic lupus erythematosus and subacute cutaneous lupus, there is a potentially life-threatening complication of hepatotoxicity.


Assuntos
Vesícula/patologia , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Hidroxicloroquina/administração & dosagem , Lúpus Eritematoso Cutâneo/complicações , Porfiria Cutânea Tardia/complicações , Adulto , Diagnóstico Diferencial , Relação Dose-Resposta a Droga , Feminino , Humanos , Hidroxicloroquina/efeitos adversos , Lúpus Eritematoso Cutâneo/terapia , Flebotomia , Porfiria Cutânea Tardia/terapia , Síndrome
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