2-羟基戊二酸尿症(2-hydroxyglutaric aciduria,2-HGA)是一种表现为血、尿和脑脊液中2-羟基戊二酸(2-hydroxyglutaric acid,2-HG)含量增高的常染色体隐性遗传病。目前已知可引起该病的致病基因包括L2HGDH、D2HGDH、IDH1、IDH2和SLC25A1[,]。2-HGA病例极其罕见,国内外都未见有发病率的报道,国外报道的2-HGA约...