Under the 2022 ACR/EULAR classification criteria [10,16], patients with MPO-ANCA positivity, asthma, mononeuritis multiplex, migratory pulmonary infiltrates, and biopsy-proven small- to medium-sized vasculitis with extravascular eosinophil infiltration but without eosinophilia exceeding 1000/mm3 would no longer be classified as having EGPA, as was possible under previous criteria, but would instead be reclassified as having MPA. Here, MPO is linked to Increased total eosinophil count.