纵隔胸腺瘤的CT诊断与鉴别

CT Diagnosis and Defferential Diagnosis of the Mediastinal Thymomas

目的 研究纵隔胸腺瘤的ＣＴ 征象，诊断与鉴别。方法 报告经手术与病理证实的纵隔胸腺瘤３７ 例，其中男性２５ 例，女性１２ 例，年龄为１２ ～６４ 岁，平均３４１ 岁。手术与病理证实：良性胸腺瘤８ 例，恶性胸腺瘤１８ 例，胸腺癌７ 例，胸腺脂肪瘤３ 例，胸腺脂肪肉瘤１ 例，全部病例均有胸部Ｘ 线正侧位片，其中２０ 例作了ＣＴ 检查。结果 病变位于前纵隔３４ 例，其中波及中后纵隔７ 例；中后纵隔３ 例，病变突向单侧３３ 例，双侧４ 例，圆形和椭圆形２２例，不规则形１３ 例，多结节状２ 例，胸腺瘤的ＣＴ 值为２１ ～４５Ｈｕ。肿瘤与纵隔接触面呈灌铸型２８ 例，占７５７ ％ 。结论 ＣＴ 对胸腺瘤的定性诊断有较高价值。

Purpose To evaluate CT features,diagnosis and deffrential diagnosis of the mediastinal thymomas.Methods 37 cases of the mediastinal thymomas proved by surgery and pathology,in which male 25 cases,female 12,ages were 12 to 64 years average 34.1.Operation and pathology:benign thymomas were 8 cases malignent 18,thymic carcinoma 7 ,thymolipoma 3,Thymic liposarcoma 1.The X ray films of the chest were taken in all of the 37 cases,in which CT examination was done in 20 cases.Results The position of thymic tumors were in the anterior mediastinaum on 34 cases involving middle and posterior mediasinum in 7,posterior 3,prominenting to one side in 33,bothside 4,round and oval shapes 22,irregular type 13,multiple nodules 2,CT values were 21Hu～45Hu.The contect surface between the tumor and mediastinum appears as moulten shape in 28 cases.Conclusion There is high value in diagnosis of the thymomas in the confirming tumor nature. [