变应性肉芽肿allergic granulomatosis，AG也称过敏性肉芽肿(zhong)或(huo)过敏性肉(rou)芽(ya)肿(zhong)性血管炎(yan)是一种以肺内及系(xi)统性(xing)小血管(guan)炎症血管外肉芽肿及高(gao)嗜酸粒细胞血症为特点的一(yi)种自身免(mian)疫性肉(rou)芽肿性血管炎是(shi)以哮(xiao)喘(chuan)嗜酸性(xing)粒细胞(bao)增(zeng)多和(he)血(xue)管外(wai)肉(rou)芽