变应性肉芽(ya)肿allergic granulomatosis，AG也(ye)称过敏性(xing)肉芽肿或过敏性肉芽肿(zhong)性血管(guan)炎是(shi)一(yi)种以肺内(nei)及系(xi)统性小血管(guan)炎(yan)症血管外肉(rou)芽肿及(ji)高嗜酸粒(li)细(xi)胞血症(zheng)为特点的(de)一(yi)种自(zi)身免疫性肉(rou)芽肿性(xing)血管炎是以哮(xiao)喘嗜酸性粒细胞增(zeng)多和(he)血管外肉芽