MONDO_0015943 (eosinophilic granulomatosis with polyangiitis) (EGPA), previously known as Churg-Strauss syndrome, is a systemic vasculitis of small-to medium vessels, characterized by asthma, transient pulmonary infiltrates, and hypereosinophilia. Also known as: CSS, Churg Strauss Syndrome, Churg Strauss syndrome, Churg-Strauss syndrome, Churg-Strauss vasculitis, EGPA, allergic angiitides, allergic angiitides, granulomatous.