The past five years have been busier than usual for the Churg-Strauss syndrome. It was renamed eosinophilic granulomatosis with polyangiitis (EGPA).1 Longitudinal cohorts totaling 484 patients—approximately as many as all previous series combined—were described.2,3 A proposal was advanced to remove and rename a subset in which vasculitis may not be present.4 And shortly after the…
