韦格纳肉芽肿( Wegener ’ s granulomatosis , WG ) ,又称为肉芽肿性血管炎( Granulomatosis with polyangiitis , GPA ) ,是伴肉芽肿形成的累及中小血管的坏死性血管炎。韦格纳肉芽肿需与变应性肉芽肿性血管炎( Churg-Strauss syndrome , CSS )和淋巴瘤样肉芽肿病( lymphomatoid granulomatosis )鉴别。韦格纳肉芽肿与变应性肉芽肿性血管炎均可累及上呼吸道,但前者常有呼吸道溃疡,胸部X线片示 ......