胸部炎性肌纤维母细胞瘤的影像学表现

Imaging findings of chest inflammatory myofibroblastic tumor

目的探讨胸部炎性肌纤维母细胞瘤的影像学表现方法收集7例经手术病理证实的胸部炎性肌纤维母细胞瘤,回顾性分析其胸片及CT图像,评价病变的发生部位、形态、大小、密度及增强等影像学特点结果2例位于肺内,表现为巨大的肿块影,边界光滑,大小为6cm以上;2例位于气管内,沿管壁浸润性生长及向管腔内突入。1例位于纵隔,与周围血管结构分界不清。1例位于食管,呈膨胀性生长。1例位于胸膜,相邻肋骨压迫性骨质破坏。5/6例增强后明显强化。结论炎性肌纤维母细胞瘤可发生于胸部的多个部位,主要表现为团块影,可有侵袭性表现,需与恶性肿瘤鉴别,诊断中青年患者胸部占位性病变时需考虑此病的可能。

Objective To assess the imaging findings of chest inflammatory myofibroblastic tumor. Methods 7 cases of chest inflammatory myofibroblastic tumor were analyzed retrospectively, the imaging features including location, morphology, size, attenuation and enhancement were investigated and recorded. Resu/ts 2 lesions located in lung manifesting giant mass with smooth margin and size〉 6cm. 2 lesions arised in trachea with infiltrative growth and intruded into the lumen. 1 case occurred in middle medlastinum with invasion to adjacent vessels. 1 case in esophagus with expansive growth and 1 lesion in pleura with compressive destruction of adjacent ribs were also showed. 5/6 mass showed significant enhancement after contrast media injected. Conclusion Inflammatory myofibroblastic tumor may arise at any site in chest with a mass like shaped. IMT would be differed from malignancy when it showed an infiltrative appearance. A differential diagnosis of IMT may be included in chest mass.