炎性假瘤可发生肺、肝及其他多种部位，男女发病机会均等。肺内病损呈肿瘤样肿块，质实。主要成分为浆细胞、组织细胞和肌纤维母细胞。其病因推测为特异性病原分子存在抑或宿主内因缺陷导致此种慢性肉芽肿形成。 Inflammatory pseudotumor can occur in lung, liver and other parts of the same, the incidence of men and women equal opportunity. Lung lesions showed tumor-like mass, quality. The main components of plasma cells, tissue cells and myofibroblasts. The etiology is speculated to be the presence of specific pathogen molecules or defects in the host leading to the formation of such chronic granulomas.