We report 2 cases of patients with immune reconstitution infl ammatory syndrome (IRIS) associated with cutaneous disseminated sporotrichosis and human immunodefi ciency virus (HIV) coinfection. The patients received specifi c treatment for sporotrichosis. However, after 4 and 5 weeks from the beginning of antiretroviral therapy, both patients experienced clinical exacerbation of skin lesions despite increased T CD4+ cells (T cells cluster of differentiation 4 positive) count and decreased viral

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... load. Despite this exacerbation, subsequent mycological examination after systemic corticosteroid administration did not reveal fungal growth. Accordingly, they were diagnosed with IRIS. However, the sudden withdrawal of the corticosteroids resulted in the recurrence of IRIS symptoms. No serious adverse effects could be attributed to prednisone. We recommend corticosteroid treatment for mildto-moderate cases of IRIS in sporotrichosis and HIV coinfection with close follow-up.