肾性糖尿为肾糖阈降低的肾小管疾病，此种疾病血糖及糖耐量正常而表现为尿糖阳性，可见于各种药物性肾损害、先天性肾性糖尿病、严重感染、胱氨酸尿症、Fanconi综合征、Wilson病以及部分糖原累积症Ⅰ型患儿。
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