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目的:探讨螺旋CT和MRI对肾嗜酸性细胞腺瘤的诊断及鉴别诊断的价值。方法:回顾性分析12例肾嗜酸性细胞瘤的CT和/或MRI表现。结果:CT检查12例,平扫8例病灶呈均匀软组织密度影,3例呈不均匀软组织密度影,1例瘤体周边有环状钙化。增强后病灶轻中度强化,6例见星状瘢痕。MRI检查3例,2例T1WI呈等低信号、T2WI呈高信号;1例T1WI呈等信号、T2WI等低信号。结论:多数肾嗜酸细胞腺瘤的影像学表现具有一定特征性。CT结合MRI特别是动态扫描有助于术前做出正确的诊断。
Objective: To investigate the value of spiral CT and MRI in the diagnosis and differential diagnosis of renal eosinophilic adenoma. Methods: CT and / or MRI findings of 12 cases of renal eosinophocytoma were analyzed retrospectively. Results: CT examination in 12 cases, 8 cases of plain lesions showed uniform soft tissue density, 3 cases showed uneven soft tissue density, 1 case of tumor around the ring calcification. Enhanced lesion mild to moderate enhancement, 6 cases to see star-like scar. There were 3 cases of MRI examination, 2 cases of T1WI showed low signal, T2WI showed high signal; 1 case of T1WI was equal signal, T2WI and other low signal. Conclusion: Most of the renal oncocytoma have some characteristic imaging features. CT combined with MRI, especially dynamic scan helps to make the right diagnosis before surgery.