This condition is an autosomal recessive genetic disorder, which means the defective gene is located on an autosome, and both parents must carry one copy of the defective gene in order to have a child born with the disorder. Carriers of a recessive gene usually do not show any signs or symptoms of the disorder. One form of ichthyosis<unk> is <unk> 1) is associated with a deficiency of the enzyme keratinocyte transglutaminase. Genes involved include: Type OMIM Gene Locus<unk> 1 TGM1 14<unk> 2 ABCA12 2q34<unk> 3 CYP4F22 19p13.12<unk> 5 ? 17p
Lamellar ichthyosis
Harlequin-type ichthyosis  Harlequin-type ichthyosis  1
Ichthyosis bullosa of Siemens
Ichthyosis acquisita
Ichthyosis with confetti
Urticaria pigmentosa
Ichthyosis vulgaris
Phakomatosis pigmentokeratotica