List of included diagnosis

1. Congenital ichthyoses
• Autosomal recessive congenital ichthyosis (ARCI) (old name: lamellar ichthyosis or congenital ichthyosiform erythroderma).
• Lamellar Ichthyosis, autosomal dominant
• Superficial epidermolytic ichthyosis (old name: Ichthyosis bullosa Siemens)
• Annular epidermolytic ichthyosis
• Epidermolytic ichthyosis (old name: bullous congenital ichthyosiform erythroderma of Brocq)
• Congenital reticular ichthyosiform erythroderma (further name for same condition: confetti ichthyosis)
• Ichthyosis hystrix type Curth-Macklin
• KID (Keratitis – Ichthyosis Deafness) Syndrome (old name: Ichthyosis hystrix type Rheydt)
• HID (Hystrix-like Ichthyosis with Deafness) Syndrome
• Harlequin ichthyosis (special and very severe type of ARCI)
• collodion baby
• self improving collodion ichthyosis (old name: self healing collodion baby)
• Refsum syndrome
• Multiple sulfatase deficiency
• Chondrodysplasia punctata type Conradi-Hünermann-Happle, X-linked dominant
• Netherton Syndrome (old name: Ichthyosis linearis circumflexa for mild variants)
• Neutral lipid storage disease with ichthyosis (old name: Dorfman Syndrome)
• Sjögren-Larsson Syndrome
• Tay Syndrome (alternative name: trichothiodystrophy)
• PIBIDS Syndrome(trichothiodystrophy with DNA repair defect)
• IFAP (ichthyosis follicularis with atrichia and photophoby) Syndrome
• Restrictive dermopathy
• Peeling skin syndrome
• CHILD Syndrome (congenital hemidysplasia-ichthyosiform nevus with limb defect)
• CHIME Syndrom (coloboma-heart defect ichthyosiform dermatitis mental retardation, ear defect)
• Chondrodysplasia punctata (rhizomelic variant and non rhizomelic variant)
• Erythrokeratoderma variabilis
• Erythrokeratoderma with ataxia of Girous-Barbeau
2. Frequent types of ichthyoses
• Ichthyosis vulgaris (IV)
• Recessive x-linked ichthyosis (RXLI)
• Associated steroid sulfatase deficiency/contiguous gene syndrome with complex deletion on X-chromosome
3. Follicular and circumscribed keratoses
• Keratosis follicularis (when really severe)
• Ulerythema ophryogenes
• Keratosis follicularis spinulosa decalvans
• Darier disease
• Hyperkeratosis lenticularis perstans of Flegel
4. Palmoplantar keratoses
a) diffuse and extensive types of PPK
• Norbotten (non-epidermolytic)
• epidermolytic PPK (of Vörner-Thost)
• Mal de Meleda
• Non epidermolytic PPK of type Nagashima
• Keratolytic winter erythema (Oudtshoorn skin disease)
b) diffuse and extensive PPK with further features
• Vohwinkel disease
• loricrin keratoderma (nowadays also classified as ichthyosis)
• Howel-Evans Syndrome
• Huriez Syndrome
• Hidrotic ectodermal dysplasia (Clouston Syndrome)
• Olmstedt Syndrome
• Papillon-Lefevre Syndrome
• Burea-Barrier Syndrome
• Naxos Syndrome
• Carvajal-Huerta Syndrome
c) focalized and striate types of PPK
• Striate PPK
• Nummular PPK of Wachters/hereditary painful collosities
d) localized PPK with further features
• Richner Hanhart Syndrome
• Pachyonychia congenital (varians type)
e) Papular types of PPK
• Punctata PPK
• Acroelastoidosis (Costa Syndrome)
• Focal acral hyperkeratosis
f) Papular PPK with further features
• Schöpf Syndrome (Syndrome of Cystic eye-lids, PPK, hypodontia and hypotrichosis)