变应(ying)性(xing)肉芽肿(zhong)allergic granulomatosis，AG也称过敏性肉芽肿或过敏性肉芽(ya)肿(zhong)性(xing)血管炎是(shi)一种以肺内及系(xi)统性(xing)小(xiao)血管炎(yan)症血管(guan)外肉芽肿(zhong)及(ji)高(gao)嗜酸粒细胞血症为特点的一种自身免疫性肉芽肿性(xing)血管(guan)炎是以(yi)哮(xiao)喘(chuan)嗜酸性(xing)粒(li)细胞(bao)增多和血管外肉(rou)芽