<unk> , also called familial<unk> , is a rare autosomal recessive metabolic disorder that results in a massive buildup of the amino acid tryptophan in the blood, with associated symptoms and tryptophanuria (-uria denotes "in the urine").
Elevated levels of tryptophan are also seen in Hartnup disease, a disorder of amino acid transport. However, the increase of tryptophan in that disorder is negligible when compared to that of<unk> .
Hypertryptophanemia
Hypermethioninemia
Histidinemia
Hyperammonemia
D-Glyceric acidemia
Hypoglycemia
Isovaleric acidemia
Ketotic hypoglycemia