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目的：评价CT对原发性纵隔肿瘤的诊断价值。材料与方法：回顾性分析40例经手术与活俭病理证实的原发性纵隔肿瘤的CT表现，其中胸内甲状腺肿13例，恶性淋巴瘤10例，神经源肿瘤8例，胸腺瘤6例，生殖细胞瘤2例，心包囊肿1例。结果：40例纵隔肿瘤CT定位正确39例，定性正确34例，CT检查对纵隔肿瘤的显示明显优于常规X线检查。结论：CT检查对纵隔肿瘤具有较高的诊断价值，多数肿瘤结合临床和CT扫描可作出明确诊断。
Objective: To evaluate the diagnostic value of CT in primary mediastinal tumors. Materials and Methods: CT findings of primary mediastinal tumors were retrospectively analyzed in 40 cases confirmed by pathology of surgery and live orbit. There were 13 cases of intrathoracic goiter, 10 cases of malignant lymphoma, 8 cases of neurogenic tumor, and 6 cases of thymoma. Germ cell tumor in 2 cases, pericardial cyst in 1 case. Results: Forty patients with mediastinal tumors were correctly located in 39 cases, and 34 cases were qualitatively correct. CT scans showed better indications for mediastinal tumors than conventional X-rays. Conclusion: CT examination has a high diagnostic value for mediastinal tumors, and most tumors can be diagnosed with clinical and CT scans.