Stevens-Johnson syndrome, mucositis, or something else?

Stevens-Johnson syndrome (SJS) has been described in the literature as a combination of erythematous blistering skin lesions covering <10% of body surface area and ≥1 mucous membrane erosion.1 SJS is usually triggered by a medication or infection. Infectious causes are more common in children, most notably herpes simplex virus (HSV) and Mycoplasma pneumoniae. Mucous membrane erosions without signifi cant skin involvement have been classifi ed as “atypical SJS” and mucositis.2