Allergic granulomatous vasculitis-associated scleritis

Allergic granulomatous vasculitis (AGA), also known as Churg-Strauss syndrome, is a vascular disease similar to nodular polyarteritis (PAN), which can affect any organ of the body, but is similar to typical PAN The ratio has the following characteristics: ① More than 90% of patients invade the pulmonary blood vessels; ② Vasculitis involves small and medium arteriovenous veins; ③ Intravascular and extravascular granuloma formation; ④ Eosinophil infiltration; ⑤ Asthma and peripheral blood Increased acid granulocytes; ⑥ The disease is not related to hepatitis B.