Table 1.

Clinical classification of ichthyoses.

Vulgar ichthyosis, isolated

Ichthyosis vulgaris

X-linked recessive ichthyosis

Vulgar ichthyosis, syndromic

Refsum syndrome

Multiple sulfatase deficiency

Congenital ichthyosis, isolated

Keratinopathic ichthyosis

Autosomal recessive congenital ichthyosis (ARCI)

Harlequin ichthyosis (subtype of ARCI)

Autosomal dominant lamellar ichthyosis

Congenital reticular ichthyosiform erythroderma (CRIE, Confetti ichthyosis)

Ichthyosis hystrix type Curth–Macklin

Peeling skin disease

Erythrokeratodermia

and others

Congenital ichthyosis, syndromic

HID/KID syndrome

Netherton syndrome

CHILD syndrome

SAM syndrome

Conradi–Hünermann–Happle syndrome

Sjögren–Larsson syndrome

Chanarin–Dorfmann syndrome

Trichothiodystrophy

IFAP syndrome

and others