纵隔低密度肿块病变CT诊断  

CT Diagnosis of Low attenuation Masses in the Mediastinum

作　　者：谭理连[1,2] 李扬彬[1,2] 陈剑魂[1,2] 

机构地区：[1]广州医学院附属第二医院CT室 [2]广州中山医科大学附属第一医院放射科

出　　处：《临床放射学杂志》1999年第3期151-153,共3页Journal of Clinical Radiology

摘　　要：目的：提高纵隔低密度肿块病变ＣＴ诊断水平。材料与方法：回顾性分析５１例经临床、手术及病理确诊纵隔低密度肿块病变的ＣＴ表现。结果：（１）不同纵隔低密度肿块病变均有其较特定的发病部位；（２）含脂肪密度肿块病变包括囊性畸胎瘤（ｎ＝３），脂肪瘤（ｎ＝６）；（３）水样低密度肿块病变包括囊性淋巴管瘤（ｎ＝３），胸腺囊肿（ｎ＝５），支气管囊肿（ｎ＝４），心包囊肿（ｎ＝３），神经纤维瘤囊性变（ｎ＝３），囊性畸胎瘤（ｎ＝３），椎旁脓肿（ｎ＝３）；（４）含气及水样密度肿块包括食管癌术后胸腔内胃（ｎ＝１４），食管憩室（ｎ＝１）；（５）２例胸腺脂肪瘤未明确显示脂肪密度。结论：ＣＴ是诊断纵隔低密度肿块病变最有效的方法。Objective: To improve the accuracy in diagnosing low attenuation masses in the mediastinum on CT scans.Materials and Methods:CT images of 51 cases with low attenuation mediastinal masses, confirmed by clinical data, surgery and pathology, were analyszed.Results:(1) Different kind of low attenuation mediastinal mass had different locations. (2) The masses with fat density can be teratoma (n=3) or lipoma (n=6). (3) The masses with water density can be lymphangioma (n=3), thymic cyst (n=5), bronchial cyst (n=4), pericardial cyst ([WT5”BX]n=3), neurofibroma with cystoid degeneration (n=3), cystic teratoma (n=3), or tuberculous abscess of thoracic vertebra (n=3). (4) The masses with gas and water inside can be intrathoracic stomach (n=14), or esophageal diverticulum ([WT5”BX]n=1). (5) No obvious fat density was visualizd in lipoma of thymus (n=2).Conclusion: CT is an effective modality in diagnosing of low attenuation mediastinal masses.

关 键 词：低密度肿块 纵隔肿瘤 CT 诊断 

分 类 号：R734.504[医药卫生—肿瘤]