上纵隔肿瘤的CT诊断

CT diagnosis of upper mediastinal tumors

目的研究上纵隔区域肿瘤的CT征象,提高诊断准确性。方法回顾分析42例经病理证实的上纵隔常见肿瘤的CT表现,包括胸腺瘤、胸内甲状腺肿、恶性淋巴瘤、支气管囊肿及神经源肿瘤。所有患者均经CT平扫检查,35例增强扫描。结果定位正确者40例(95%),定性正确者37例(88%)。结论上纵隔内肿瘤种类较多,CT诊断定位定性的准确率均较高,可作为上纵隔肿瘤影像学检查的首选方法。

Objective To investigate the CT features of the upper mediastinal tumors and to elevate the diagnostic accuracy. Methods CT findings of upper mediastinal tumors which comprised thymoma, intrathoracic thyroid gland, malignant lymphoma, bronchial cyst, and neurogenic tumor seen in 42 patients were analyzed retrospectively. All patients underwent conventional CT plain scans, of them, 35 patients underwent addilional CT contrast enhanced scans. Results On CT images of 44 cases, 40 cases（95% ）were correctly localized diagnosed, while 37 cases （88%）were correctly qualilative diagnosed. Conclusion Upper mediastional tumors have many types in whose diagnosis CT scans without and with contrast enhancement have higher locative and qualitative accuracy so that it can be taken as first selection to diagnose this disease.