肺部多发结节性病变是指在肺部影像学和(或)病理组织学上以多个结节样病灶为主要表现的疾病群,可由许多病种引起。肉芽肿是病理组织学上慢性炎症的主要类型,是致炎因子长期持续性刺激所致的迟发型变态反应,在炎症局部形成以巨噬细胞增生为主、境界清楚的结节状病灶[1-2]。1肉芽 Pulmonary multiple nodular lesions refers to the lung imaging and (or) histopathology with multiple nodular lesions as the main manifestation of the disease can be caused by many diseases. Granuloma is the main histopathological type of chronic inflammation, is a long-term sustained stimulation of proinflammatory cytokines caused by delayed type of allergic reactions, the formation of local inflammation in order to macrophage hyperplasia, clear nodules [1 -2]. 1 granulation