Kwasica 3-metyloglutakonowa typu 4

3-methylglutaconic aciduria (3-MGA) type IV, or unclassified 3-MGA, is a clinically heterogeneous disorder characterised by increased 3-methylglutaconic acid excretion in individuals that cannot be classified as having one of the other forms of 3-MGA (3-MGA I, II or III).