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Acta Paediatr. 1997 Sep;86(9):1013-5.

Tyrosinemia type III: diagnosis and ten-year follow-up.

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  • 1University Department of Paediatrics, G. Gaslini Institute, Genova, Italy.

Abstract

Tyrosinemia type III, caused by deficiency of 4-hydroxyphenylpyruvate dioxygenase, is a rare disorder of tyrosine catabolism. Primary 4-hydroxyphenylpyruvate dioxygenase deficiency has been described in only three patients. The biochemical phenotype shows hypertyrosinemia and elevated urinary excretion of 4-hydroxyphenyl derivatives. We report the clinical and biochemical findings and the results of long-term follow-up in a new patient with this disorder presenting with severe mental retardation and neurological abnormalities. The clinical phenotype is compared with those reported in the three previously described patients.

PMID:
9343288
[PubMed - indexed for MEDLINE]
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