Rare Mediastinal Masses：Helical CT Features and Predominant Anatomic Distribution in Mediastinum_West China Medical Journal

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1Department of Radiology,2Department of Pathology,West China Hospital，Sichuan University,Chengdu 610041,China;

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Keywords：

纵隔; 肿瘤; 螺旋CT; 病理

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目的：探讨少见纵隔占位病变的螺旋CT表现特征及其病理基础，以提高临床认识及诊治水平。方法：回顾性分析经临床病理证实的原发性少见纵隔占位病变的螺旋CT表现，观察和评价肿块内部结构、密度分布、边缘特征、强化特征等CT表现特点及其优势解剖分布。结果：32例少见纵隔肿块中良性22例（68.75％，22/32），恶性10例（10/32，31.25％）。22例良性肿块中密度均匀12例（12/22，5454％），形态规则16例（16/22，72.72％），边界清楚14例（14/22，63.64％），低密度15例（15/22，68.18％）。10例恶性肿块中密度不均匀7例（7/10，70％），形态不规则8例（8/10，80％），边界不清楚6例（6/10，60％），中等密度6例（6/10，60％）。32例肿块中位于上纵隔12例，前纵隔16例，中纵隔9例，后纵隔11例。良性肿块常累及一个解剖分区（15/22,68.18％），恶性多累及二个区以上（6/10,60％）。结论：不同的少见纵隔肿块具有不同特征CT表现及其好发部位，这与其解剖来源和其组织成分不同有关

Citation： YUAN Hongmei,YU Jianqun,WEIBin,et al.. Rare Mediastinal Masses：Helical CT Features and Predominant Anatomic Distribution in Mediastinum. West China Medical Journal, 2008, 23(1): 53-55. doi: Copy

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2. Strollo DC,Rosado-de-Christenson ML,Jett JR.Primarymediastinal tumors:Part 1*Tumors of the Anterior Mediastinum[J].Chest,1997,112(2):511-522.
3. Strollo DC,Rosado-de-Christenson ML,Jett,JR.Primarymediastinal tumors:part Ⅱ.Tumors of the middle and posterior mediastinum[J].Chest,1997,112(5):1344-1357.
4. Lee KS,Lm JG,Han CH,et al.Malignant Primary Germ Cell Tumors of the Mediastinum:CT Features[J].AJR,1989,153(5):947-951.
5. McAdams HP,Rosado-de-Christenson ML,Moran CA.Mediastinal hemangioma:radiographic and CT features in 14 patients[J].Radiology,1994,193(2):399-402.
6. Moeller KH,Rosado-de-Christenson ML.Templeton PA.Mediastinal Mature Teratoma:Imaging Features[J].AJR,1997,169(4):985-990.
7. 谭理连,李杨彬,陈剑魂.纵隔低密度肿块病变CT诊断[J].临床放射医学杂志,1999,18(3):151-153.
8. Gladish GW.Sabloff BM.Munden RF,et al.Primary Thoracic Sarcomas[J].Radiogrphics,2002,22（3）:621-637.
9. 余建群,杨志刚,李成.纵隔原发性肿瘤的螺旋CT表现特征及其优势解剖分布[J].中国现代实用医学杂志，2002,1(5):11-14.
10. Moran CA,Suster S.Primary germ cell tumors of the mediastinum:I.Analysis of 322 cases with special emphasis on teratomatous lesions and a proposal for histopathologic classification and clinical staging[J].Cancer,1997,80(4):681-690.

West China Medical Journal

Rare Mediastinal Masses：Helical CT Features and Predominant Anatomic Distribution in Mediastinum

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