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目的：分析肾嗜酸细胞腺瘤的临床特征，指导并提升诊疗水平。方法：回顾性分析47 例肾嗜酸细胞腺瘤的临床资料，包括临床特点、影像表现、病理特征、治疗方法及预后等方面。结果：47 例患者中43 例因查体偶然发现，仅4 例表现为患侧腰痛症状。术前影像诊断中1 例考虑嗜酸细胞腺瘤，1 例考虑腺瘤，2 例CT 与MRI 报告不一致（CT 与MRI 各有1 例诊断良性，具体类型不确定），其余43 例均诊断为肾细胞癌（1 例囊性肾癌）。27 例行肾癌根治性切除术，16 例行肾部分切除术，4 例行微波或射频消融术。所有患者术后病理均诊断为肾嗜酸细胞腺瘤，随访4～179 月，均无转移或复发。结论：肾嗜酸细胞腺瘤作为一种与肾细胞癌难相鉴别的良性肿瘤,因缺乏特异性表现，极易误诊为肾细胞癌，因此对肾肿瘤患者应尽可能选择保肾治疗方案。

英文摘要:

Objective: Analyzed the clinical characters of renal oncocytoma (RO) cases to improve the diagnosis and treatment. Methods: The clinical data of 47 renal oncocytoma cases were analyzed retrospectively, which included clinical manifestations, radiographic evaluations, pathological results, treatment protocals and prognosis. Results: 43 cases were asymptomatics and only 4 cases complainted of lambago on the affected sides. There were 2 cases diagnosed by radiographic evaluations as benign masses ( 1 of oncocytoma, 1 of adenoma), 2 cases got the conflicted results between CT and MRI scans (there was 1 case diagnosed as benign lesion in each groups respectively), 43 cases as RCC (1 of cystic RCC). All patients received the active treatments and got the pathological diagnosis. The radical nephrectomy was performed in 27 cases, 16 underwent nephron sparing surgery, and 4 were treated with ablation of renal masses. All patients' pathological results identified the diagnosis of oncocytoma. 42 cases were followed up for 3 months to 15 years, and no recurrence or metastasis was detected. Conclusions: As its deficiency in specific clinical features, the RO is a benign renal mass which is difficult to differential diagnosed with RCC before operation. Nephron sparing treatments should be considered to renal masses patients as far as possible.

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