Tyrosinemia, Type III (TYR-III)


Tyrosinemia, Type III (TYR-III) is an inborn error of metabolism, an inherited condition in which an enzyme, 4-hydroxyphenylpyruvate dioxygenase, in the body is either missing or not working well. Tyrosinemia Type III is considered an amino acid condition because the body is unable to break down the amino acid (part of protein), known as tyrosine, when this enzyme is not working properly. This condition is rare and the signs and symptoms of TYR-III can be variable and are not yet well defined.

For more information about Tyrosinemia, Type III, go to Baby's First Test: Tyrosinemia, Type III. Please see Medically Prescribed Formula for information about medically prescribed formula and pharmacologic interventions for inborn errors of metabolism. A listing of contact information for Minnesota inborn errors of metabolism medical specialty providers/clinics serving children affected with or undergoing evaluation for conditions that can be detected through Minnesota Newborn Screening is available upon request.