ＣＴ与超声的广泛应用使肾脏实质内小（１．５～３．０ｃｍ）和非常小（＜１．５ｃｍ）病灶频繁偶然发现；但具体明确的诊断仍困惑莫测；而其处理更充满争议。本文复习有关肾脏小肿物病原学文献及影像评价，并为其适当的处置提出建议 The widespread use of CT and ultrasound has led to occasional and frequent discoveries of small (1.5-3.0 cm) and very small (<1.5 cm) lesions in the kidney; however, specific definitive diagnoses remain perplexing and its treatment is more controversial . This review of etiology of renal small tumor literature and imaging evaluation, and make recommendations for its proper disposal