絕大部分的腎嗜酸細胞瘤病人病程都屬良性，手術的方式也傾向保留腎臟的功能，但因為術前的影像診斷可能無法區分腎細胞癌和腎嗜酸細胞瘤，很多病患都摘除了整顆腎臟。我們報告了一個44歲男性病人，左腎中位有顆6公分大的腫瘤，接受了手輔式腹腔鏡腎臟摘除術。病理報告為腎嗜酸細胞瘤，術後病人發生短暫腎功能不全的現象，對於腎嗜酸細胞瘤的診斷和治療方式，我們作了整理和討論。結論：對於6公分的腎中位腫瘤，腎臟摘除術為合理治療如果術前切片診斷為嗜酸細胞瘤，則可採取保留腎臟功能的手術方式。

Renal oncocytomas almost uniformly have a benign course, and nephron-sparing surgery (NSS) is the favored treatment. However, a total nephrectomy is usually performed for most oncocytomas because of the difficulty in differentiating them from renal cell carcinoma (RCC). We present a 44-year-old male with a 6-cm centrally located right renal tumor. A hand-assisted laparoscopic radical nephrectomy was performed, and an oncocytoma was revealed by the pathology report. The postoperative course was smooth, except for the development of renal insufficiency. The diagnosis and management of renal oncocytomas are reviewed and discussed.