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目的:探讨超声和CT对胃肠道间质瘤(GIST)的诊断价值。方法:回顾性分析经手术病理证实的22例胃肠道间质瘤的超声和CT表现。结果:超声表现肿瘤内部回声不均匀,彩色多普勒血流显示肿物内部和边缘部见彩色血流,点条状或环形分布。CT平扫表现为肿瘤内密度均匀或欠均匀。增强扫描肿块实性部分轻度、中度或显著强化。结论:GIST的CT和超声表现没有特异性,但两者联合应用对其定位准确,对肿瘤良、恶性的判别及预后的估计有重要价值。
Objective: To investigate the diagnostic value of ultrasound and CT in gastrointestinal stromal tumor (GIST). METHODS: Ultrasonographic and CT findings of 22 patients with gastrointestinal stromal tumors confirmed by surgery and pathology were retrospectively analyzed. RESULTS: Ultrasonography showed that the internal echo of the tumor was not uniform, and color Doppler flow showed color blood flow within the tumor and its edges. CT plain scan showed a uniform or less uniform density within the tumor. Increased scans of solid mass were slightly, moderately, or significantly enhanced. Conclusion: There is no specificity in CT and ultrasonographic appearance of GIST, but the combination of the two is accurate in its location, and it is of great value in distinguishing benign and malignant tumors and estimating their prognosis.