Abstract
BACKGROUND: The emerging 2022 human mpox virus outbreak has presented with unique disease manifestations challenging prior case definitions. CASE REPORT: We present a case of a 42-year-old transgender woman with human immunodeficiency virus controlled on antiretroviral therapy, presenting with sore throat, who, after three emergency department visits, was found to have acute tonsillitis complicated by airway obstruction secondary to mpox. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Sore throat is a common presentation to the emergency department. mpox should be placed on the list of differential diagnoses when evaluating patients who present with pharyngitis to avoid complications or a missed diagnosis.