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目的探讨CT在鞍区肿瘤诊断中的应用价值。方法33例经手术和病理证实的鞍区肿瘤病人,对其CT表现进行回顾性分析。结果垂体瘤20例,颅咽管瘤8例,脑膜瘤3例,CT表现具有特征性,术前诊断正确率较高。星形细胞瘤和生殖细胞瘤各1例,CT表现为鞍区实性肿块,其中1例误诊。结论CT扫描,尤其是二维图像重建技术(冠状、矢状)可显示鞍区肿瘤的内部特征、生长方式、侵犯范围及其与周围血管的关系,对准确诊断鞍区肿瘤有重要价值。
Objective To investigate the value of CT in the diagnosis of sellar tumors. Methods Totally 33 cases of sellar tumor confirmed by operation and pathology were retrospectively analyzed. Results 20 cases of pituitary tumor, craniopharyngioma in 8 cases, 3 cases of meningioma, CT showed a characteristic, preoperative diagnosis of high accuracy. 1 case of astrocytoma and germ cell tumor, CT showed a solid mass in the saddle area, of which 1 case was misdiagnosed. Conclusion The CT scan, especially the two-dimensional image reconstruction technique (coronal and sagittal) can show the internal features, growth pattern, extent of invasion and the relationship with the surrounding blood vessels in the sellar region, which is of great value in the accurate diagnosis of the sellar region tumors.