Article
Trichothiodystrophy and fragile hair: the distinction between diagnostic signs and diagnostic labels in childhood hair disease.
The British journal of dermatology - 1 Dec 2009
Cheng S, Stone J, de Berker D
Abstract excerpt
BACKGROUND: Hair typically becomes fragile when there are structural abnormalities and/or a reduction in the sulphur-containing amino acids cystine or methionine. This finding in the setting of a neuroectodermal complaint is usually labelled trichothiodystrophy (TTD). The spectrum of features within this diagnostic grouping tests the validity of using sulphur-deficient hair as a central characteristic....
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