IGHE and Increased total eosinophil count: At the time of diagnosis, eosinophilia was observed in 15/28 patients (53.57%) with a median baseline eosinophil count of 510 eosinophils/mm3 (IQR (205–792)) cells/mm3, and IgE was elevated in 9/23 patients (39.13%) with a median of 371 UI/mL (148–609).