Term Name:	nonphotosensitive trichothiodystrophy 7
Synonyms:	TTD7
Definition:	A nonphotosensitive trichothiodystrophy characterized by cysteine- and threonine-deficient hair that displays a diagnostic alternating light and dark 'tiger-tail' banding pattern under polarization microscopy, as well as ichthyosis that has_material_basis_in homozygous or compound heterozygous mutation in the TARS1 gene on chromosome 5p13.3.
Ontology:	Human Disease [DOID:0111870]   ( DOID:0111870 )