Stevens-Johnson syndrome (SJS) is a potentially life-threatening cutaneous disorder that is characterized by skin erosions. It lies on a spectrum of varying severity with toxic epidermal necrolysis (TEN) being the most severe form. An overlap of the syndromes is known as SJS/TEN. These disorders are most often caused by a drug reaction, with anti-epileptic drugs and sulfonamide drugs as the common offending agents. Rarely, the syndrome can be due to a reaction to carbonic anhydrase inhibitors such as methazolamide. When present in association with methazolamide, the syndrome has only been known to occur in patients of Asian descent with human leukocyte antigen (HLA) mutations. We present a case of methazolamide-associated Stevens-Johnson syndrome in a patient of Caucasian descent.
Keywords: cutaneous adverse drug reaction; hla; methazolamide; stevens johnson; toxic epidermal necrolysis.
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