【摘要】 目的 探讨纵隔少见肿瘤的影像特点。方法 搜集2006-03—2008-04间经手术及病理证实的纵隔少见肿瘤24例,全部病例均行胸部CT平扫,17例行CT增强扫描,1例行MRI平扫。结果 本组24例,包括临床少见、发病率低的肿瘤22例,常见而发生在少见部位的肿瘤2例。所有病变归为7种不同组织来源,其中神经源性5例;尤文氏肉瘤1例;浆细胞瘤1例;神经内分泌癌2例;类癌1例;生殖源性肿瘤6例;间叶组织源性8例。大部分纵隔少见肿瘤影像学表现无特征。结论 纵隔少见肿瘤的影像诊断定性较困难,多种影像检查并结合临床综合分析,对提高该类病变诊断率有重要意义。更多还原

【Abstract】 Objective To investigate the imaging features of mediastinal rare tumors.Methods 24 cases with mediastinal rare tumors confirmed by surgical-pathological findings were collected.All cases were studied by CT scan,among them17 cases underwent contrast-enhanced CT scans.One case was examined by MRI in addition.Results There were 22 cases rare tumors and 2 cases common tumors that were found in the place where they were not usually seen.All cases categorized to 7 different tissue sources including 5 neurogenic tumors,1 Ewing’s sarcoma,1 plasmacytoma,1 carcinoid,2 neuroendocrine carcinomas,6 tumors originating from germ cell and 8 tumors from mesenchymal tissue.The most of mediastinal rare tumors were no imaging characteristics.Conclusion It is difficult to make a diagnosis of mediastinal rare tumors only based on the imaging findings.The comprehensive consideration that the imaging finding in combination with the results of clinical examination can improve the diagnosis of mediastinal rare tumors.更多还原