
A 17-year-old white female is transferred from an outside hospital with the chief complaint being painful oral ulcers. Over the last 72 hours, the pain from her ulcers has progressively worsened, leading to the inability to speak or eat. She also has a diffuse papulopustular rash. There is an extensive family history of autoimmune disease, and she tested positive for mononucleosis 2 months prior to hospitalization.
