Conditions / Syndrome

nonphotosensitive trichothiodystrophy 4

info ยท Syndrome

A nonphotosensitive trichothiodystrophy that is characterized by brittle hair, short stature, decreased fertility and cognitive impairment without photosensitivity has_material_basis_in mutations in the TTDN1 gene.

Signs and symptoms

  • Trichorrhexis nodosa
  • Intellectual disability
  • Brittle hair
  • Global developmental delay
  • Nail dystrophy
  • Growth delay
  • Small nail
  • Woolly hair
  • Decreased fertility
  • Nail dysplasia

Also known as: AMISH BRITTLE HAIR BRAIN SYNDROME; BIDS syndrome; HAIR-BRAIN SYNDROME; TTD4