DOI: 10.1373/clinchem.2015.243220

Summary:

A 50-year-old woman presented with urticarial rash, fever, and pharyngitis. A week before, she had been examined in the emergency department for widespread pruritic erythematous-edematous plaques associated with remittent fever (up to 38.5 °C) and sore throat. Laboratory results revealed neutrophilic leukocytosis and increased inflammatory markers.