炎性肌纤维母细胞肿瘤(inflammatory myofibroblastic tumor,IMT)是一种由分化性的梭形纤维母细胞/肌纤维母细胞组成的肿瘤,间质内常伴有大量的浆细胞和淋巴细胞浸润。IMT包括浆细胞肉芽肿、炎性假瘤、炎性肌纤维组织细胞增生、炎性纤维肉瘤。本病主要发生在儿童和青年人(<30岁),中位年龄9岁。全身多部位均可发生,临床表现缺乏特异性,发生在气管者非常罕见。现将本院 Inflammatory myofibroblastic tumor (IMT) is a tumor composed of differentiated spindle fibroblasts / myofibroblasts, often accompanied by a large number of infiltration of plasma cells and lymphocytes in the interstitium. IMT includes plasmacytoma granuloma, inflammatory pseudotumor, inflammatory myofibroblast hyperplasia, and inflammatory fibrosarcoma. The disease occurs mainly in children and young people (<30 years), the median age of 9 years. Multiple parts of the body can occur, the lack of specificity of clinical manifestations, occurred in the trachea are very rare. Now this hospital