title: Porphyria precipitated by hydroxychloroquine treatment of systemic lupus erythematosus.
abstract: This case report emphasizes the fact that patients presenting with photosensitivity could have lupus erythematosus or porphyria or both; and since the therapy for one may aggravate the other, extreme caution is indicated.
mesh_terms: D005260:Female; D006801:Humans; D006886:Hydroxychloroquine / Q000009:adverse effects* / Q000627:therapeutic use; D008180:Lupus Erythematosus, Systemic / Q000188:drug therapy*; D008875:Middle Aged; D011164:Porphyrias / Q000139:chemically induced*
chemical_list: D006886:Hydroxychloroquine