Abstract
Dapsone is extensively used for a variety of infectious, immunological, and hypersensitivity disorders. Dapsone can cause several adverse effects, the most serious being dapsone hypersensitivity syndrome (DHS), which is potentially fatal. DHS is characterized by triad of eruptions, fever, and organ involvement (including liver, kidney, hematological system, etc.). DHS can develop several weeks to as late as 6 months after treatment initiation with dapsone. Here, we report a case of DHS and leukemoid reaction with coexisting hepatitis E in a 10-year-old girl. Three weeks prior to the current admission, she was treated with dapsone (1 mg/kg/day in two divided doses) for 8 days by a local doctor for lichen nitidus. She was managed successfully for DHS with intravenous (IV) steroids followed by the oral steroid. This case is being reported to highlight the importance to ensure timely diagnosis of DHS and its appropriate management. Patients started on dapsone for various clinical conditions need to be observed carefully for the development of the DHS. If this occurs, DHS can be mistaken for the progression of the primary disease. If dapsone is not withdrawn, it could have deleterious and potentially fatal effects due to major organ dysfunction.
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