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目的:探讨纵隔型肿瘤的不同CT特点,以期提高纵隔型肿瘤术前评估的准确性。方法:回顾性分析32例经活检和手术病理证实的纵隔型肿瘤的CT征象,结合文献报道,研究纵膈型肿瘤的影像特点。结果:32例中,前纵隔肿瘤17例,中纵隔肿瘤10例(包括纵隔型肺癌3例),后纵隔神经源性肿瘤5例。良性肿瘤大多为圆形或类圆形软组织肿块,密度均匀,主要呈膨胀性生长,边缘境界清楚;而恶性肿瘤体积大且不规则,混杂密度,呈浸润性生长,边缘不清,多累及周围组织血管。结论:CT扫描能较准确地显示不同纵隔型肿瘤的影像特点,结合其发病部位与临床表现,对术前肿瘤准确定位、定性诊断及鉴别诊断具有较高的临床应用价值。
Objective: To explore different CT features of mediastinal tumors in order to improve the accuracy of preoperative evaluation of mediastinal tumors. Methods: CT findings of 32 mediastinum tumor confirmed by biopsy and pathology were retrospectively analyzed. The imaging features of mediastinal mediastinum were studied in combination with the literature reports. Results: In 32 cases, there were 17 cases of anterior mediastinal tumors, 10 cases of medium mediastinal tumors (including 3 cases of mediastinal lung cancer) and 5 cases of posterior mediastinal neurogenic tumors. Most of benign tumors are round or round soft tissue mass, uniform density, mainly swollen growth, the edge of a clear realm; and malignant tumor volume and irregular, mixed density, was invasive growth, the edge is unclear, and more around the Tissue blood vessels. Conclusion: CT scan can show the imaging characteristics of different mediastinal tumors more accurately. Combined with its location and clinical manifestations, CT scan has a high clinical value for the accurate localization, qualitative diagnosis and differential diagnosis of preoperative tumors.