Hydroxychloroquine-induced hyperpigmentation: the staining pattern.
Publication/Presentation Date
12-1-2008
Abstract
We report two cases of hydroxychloroquine-induced hyperpigmentation presenting in a 50-year-old Caucasian female (case 1) and a 78-year-old female (case 2), both receiving 400 mg per day. Case 1 had an arthritis predominant undifferentiated connective tissue disease, which was treated with hydroxychloroquine for 4-5 years. She presented with a mottled, reticulated macular gray pigmentation involving the upper back and shoulders. Case 2 had a history of systemic lupus erythematosus and rheumatoid arthritis, treated with hydroxychloroquine for 1.5 years. She presented to the hospital for treatment of constrictive cardiomyopathy and was noted to have a blue macular pigmentation involving the right temple. The biopsies from both patients showed superficial dermal, yellow-brown, non-refractile and coarsely granular pigment deposition. A Fontana-Masson stain highlighted some of these granules, while the Perl's iron stain was negative. Rare, previous reports of hyperpigmentation indicate the presence of both melanin and hemosiderin in patients being treated with antimalarial medication. To our knowledge, this staining pattern for hydroxychloroquine has not been previously reported in the literature and supports that hydroxychloroquine, in addition to chloroquine, binds to melanin.
Volume
35
Issue
12
First Page
1134
Last Page
1137
ISSN
1600-0560
Published In/Presented At
Puri, P. K., Lountzis, N. I., Tyler, W., & Ferringer, T. (2008). Hydroxychloroquine-induced hyperpigmentation: the staining pattern. Journal of cutaneous pathology, 35(12), 1134–1137. https://doi.org/10.1111/j.1600-0560.2008.01004.x
Disciplines
Medicine and Health Sciences
PubMedID
18727667
Department(s)
Department of Medicine
Document Type
Article