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  • Title: Tyrosinemia type II in two cases previously reported as Richner-Hanhart syndrome.
    Author: Balato N, Cusano F, Lembo G, Santoianni P.
    Journal: Dermatologica; 1986; 173(2):66-74. PubMed ID: 2947825.
    Abstract:
    Two sibs with palmo-plantar keratosis and dendritic corneal opacities, previously described as suffering from Richner-Hanhart syndrome by other authors, about 25 years ago, showed increased plasma and urine tyrosine levels. Their neurological and mental features were within normal limits. A comprehensive review of the literature showed a total of 47 cases of fully documented tyrosinemia type II; 8 more patients also had the clinical features of the disease, but aminoacidemia had never been observed. The importance of early diagnosis is stressed, since a low tyrosine-phenylalanine diet dramatically improves the symptoms and may prevent mental retardation.
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