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Central osteosclerosis with trichothiodystrophy.

Emma L Wakeling1, Michele Cruwys, Mohnish Suri

  • 1North West Thames Regional Genetics Service, Kennedy-Galton Centre, Level 8 V, North West London Hospitals NHS Trust, Watford Road, Harrow HAI 3UJ, Middlesex, UK. e.wakeling@imperial.ac.uk

Pediatric Radiology
|May 19, 2004
PubMed
Summary
This summary is machine-generated.

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Trichothiodystrophy (TTD) is a rare genetic disorder caused by XPD gene mutations, affecting hair, skin, and development. This case highlights progressive central osteosclerosis as a notable, though under-recognized, radiological finding in TTD patients.

Area of Science:

  • Genetics
  • Molecular Biology
  • Radiology

Background:

  • Trichothiodystrophy (TTD) is a rare autosomal recessive disorder linked to nucleotide excision repair defects.
  • Mutations in the XPD gene are a known cause of TTD, presenting with characteristic clinical features.
  • The multisystemic nature of TTD involves ectodermal and developmental abnormalities.

Observation:

  • A 7-year-old boy with TTD due to an XPD gene mutation presented with classic symptoms: brittle, sulfur-deficient hair, ichthyosis, growth retardation, and developmental delay.
  • Radiological examination revealed progressive central osteosclerosis, a skeletal finding not commonly associated with TTD.
  • This specific radiological manifestation has been observed in a limited number of TTD cases.

Findings:

  • The study confirms the association between XPD gene mutations, TTD, and the presence of progressive central osteosclerosis.

Related Experiment Videos

  • Detailed review of radiological findings in this and similar cases underscores the significance of this skeletal abnormality.
  • The natural history and progression of these bony changes in TTD are discussed.

    • Implications:

    • Recognizing progressive central osteosclerosis in TTD patients is crucial for comprehensive diagnosis and management.
    • Further research into the underlying mechanisms connecting XPD mutations to osteosclerosis may reveal new therapeutic targets.
    • This finding expands the understanding of TTD's phenotypic spectrum and its radiological manifestations.