Conclusion:(superscript 99m)Tc-DMSA renal scan should be performed in any age groups of children with severe infection without clear etiology, especially in those with abnormal urinalysis.

• 结论：在一个严重感染而不知感染源的小孩，无论年龄大小，鎝-99m-DMSA肾脏扫描可提供有效的诊断，特别是尿液分析有问题者，更须作鎝-99m-DMSA肾脏扫描。