变应性(xing)肉芽肿allergic granulomatosis，AG也称过敏性肉芽(ya)肿或过敏性(xing)肉芽肿性血管炎(yan)是一种(zhong)以肺(fei)内(nei)及系统(tong)性(xing)小血管(guan)炎症血(xue)管外肉芽肿及高嗜酸(suan)粒细胞血症为(wei)特点的(de)一种(zhong)自(zi)身免疫性肉(rou)芽肿性(xing)血(xue)管(guan)炎是以哮喘嗜酸性粒细胞(bao)增多和血管外肉芽