What is the etiology of Stevens-Johnson syndrome (SJS)?

Updated: Jan 17, 2019
  • Author: C Stephen Foster, MD, FACS, FACR, FAAO, FARVO; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Answer

Various etiologic factors (eg, infection, drugs, malignancies) have been implicated as causes of Stevens-Johnson syndrome. However, as many as half of cases are idiopathic. There is strong evidence for a genetic predisposition to Stevens-Johnson syndrome provoked by certain drugs. (See Etiology.)


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