Ichthyosis hystrix

Ichthyosis hystrix
Classification and external resources
ICD-10	Q80.8
OMIM	146590 146600 602540

The term ichthyosis hysterix is used to describe several rare skin disorders in the ichthyosis family of skin disorders characterized by massive hyperkeratosis with an appearance like spiny scales.^[1] This term is also used to refer to a type of epidermal nevi with extensive bilateral distribution.^[1]^[2]^:771

1 Ichthyosis hystrix, Curth-Macklin type
2 Ichthyosis hystrix, Lambert type
3 Hystrix-like ichthyosis with deafness syndrome
4 Ichthyosis hystrix, Baefvertstedt type
5 See also
6 References

Ichthyosis hystrix, Curth-Macklin type

The symptoms of Ichthyosis hystrix Curth-Macklin are similar to epidermolytic hyperkeratosis (NPS-2 type) but there is no blistering and the hyperkeratosis is verrucous or spine-like. The hyperkeratosis is brown-grey in colour and is most obvious on the arms and legs. It is a autosomal dominant condition and can be caused by errors to the KRT1 gene.^[3]^[4]

Ichthyosis hystrix, Lambert type

Also known as Ichthyosis hystrix gravior or porcupine man. This disease is characterised by spiny scales which cover the entire body except the face, genitals, palms and soles. The only known cases were in Edward Lambert (known as the porcupine man) who was exhibited in front of the Royal Society in London in 1731 and three generations of his descendants. No cases of this disease are now known though some experts believe that it may have been a type of epidermolytic hyperkeratosis. From the history of the Lambert family the disease appears to have been an autosomal dominant condition.^[1]^[5]

Hystrix-like ichthyosis with deafness syndrome

HID syndrome is also known as Ichthyosis hystrix, Rheydt type after the German city of Rheydt near Düsseldorf where it was first discovered. Symptoms are bilateral hearing loss and spiky hyperkeratotic masses which cover the whole body though the palms and soles are less badly affected. It can be differentiated from KID syndrome which also has symptoms of deafness and ichthyosis by the different distribution of hyperkeratosis. It is an autosomal dominant condition caused by a mutation to the GJB2 gene (the same gene affected by KID syndrome).^[6]^[7]

Ichthyosis hystrix, Baefvertstedt type

An extremely rare disease of which only a few isolated cases are known.^[1]

References

^ ^a ^b ^c ^d Ichthyosis hystrix, DermIS
^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0071380760.
^ Ichthyosis hystrix, Curth-Macklin type, OMIM (Online Mendelian Inheritance in Man), Johns Hopkins University
^ Ichthyosis hystrix of Curth-Macklin, Rare Disease Registry, University of Padua, Italy
^ Ichthyosis hystrix gravior, OMIM (Online Mendelian Inheritance in Man), Johns Hopkins University
^ Autosomal dominant inheritance of HID syndrome (hystrix-likeichthyosis with deafness), European Journal of Dermatology, Volume 7, Number 8, December 1997
^ Ichthyosis, Hystrix-like, with deafness OMIM (Online Mendelian Inheritance in Man), Johns Hopkins University

Congenital malformations and deformations of integument / skin disease (Q80–Q82, 757.0–757.3)

Genodermatosis

Congenital ichthyosis/
erythrokeratodermia

AD	Ichthyosis vulgaris

AR	Congenital ichthyosiform erythroderma: Epidermolytic hyperkeratosis · Lamellar ichthyosis (Harlequin type ichthyosis) Netherton syndrome · Zunich–Kaye syndrome · Sjögren–Larsson syndrome

XR	X-linked ichthyosis

Ungrouped	Ichthyosis bullosa of Siemens · Ichthyosis follicularis · Ichthyosis prematurity syndrome · Ichthyosis–sclerosing cholangitis syndrome · Nonbullous congenital ichthyosiform erythroderma · Ichthyosis linearis circumflexa · Ichthyosis hystrix

JEB (JEB-H, Mitis, Generalized atrophic, JEB-PA)

DEB (DDEB, RDEB)

Ectodermal dysplasia

Naegeli syndrome/Dermatopathia pigmentosa reticularis · Hay–Wells syndrome · Hypohidrotic ectodermal dysplasia · Focal dermal hypoplasia · Ellis–van Creveld syndrome · Rapp–Hodgkin syndrome/Hay–Wells syndrome

Elastic/Connective

Ehlers–Danlos syndrome · Cutis laxa (Gerodermia osteodysplastica) · Popliteal pterygium syndrome · Pseudoxanthoma elasticum · Van Der Woude syndrome

Hyperkeratosis/
keratinopathy

PPK	diffuse: Diffuse epidermolytic palmoplantar keratoderma • Diffuse nonepidermolytic palmoplantar keratoderma • Palmoplantar keratoderma of Sybert • Mal de Meleda • syndromic (connexin (Bart–Pumphrey syndrome • Clouston's hidrotic ectodermal dysplasia • Vohwinkel syndrome) • Corneodermatoosseous syndrome • plakoglobin (Naxos syndrome) • Scleroatrophic syndrome of Huriez • Olmsted syndrome • Cathepsin C (Papillon–Lefèvre syndrome • Haim–Munk syndrome) • Camisa disease focal: Focal palmoplantar keratoderma with oral mucosal hyperkeratosis • Focal palmoplantar and gingival keratosis • Howel–Evans syndrome • Pachyonychia congenita (Pachyonychia congenita type I • Pachyonychia congenita type II) • Striate palmoplantar keratoderma • Tyrosinemia type II) punctate: Acrokeratoelastoidosis of Costa • Focal acral hyperkeratosis • Keratosis punctata palmaris et plantaris • Keratosis punctata of the palmar creases • Schöpf–Schulz–Passarge syndrome • Porokeratosis plantaris discreta • Spiny keratoderma ungrouped: Palmoplantar keratoderma and spastic paraplegia • desmoplakin (Carvajal syndrome) • connexin (Erythrokeratodermia variabilis • HID/KID)

Other	Meleda disease · Keratosis pilaris · ATP2A2 (Darier's disease) · Dyskeratosis congenita · Lelis syndrome Dyskeratosis congenita · Keratolytic winter erythema · Keratosis follicularis spinulosa decalvans · Keratosis linearis with ichthyosis congenital and sclerosing keratoderma syndrome · Keratosis pilaris atrophicans faciei · Keratosis pilaris

Other

cadherin (EEM syndrome) · immune system (Hereditary lymphedema, Mastocytosis/Urticaria pigmentosa) · Hailey–Hailey

see also Template:Congenital malformations and deformations of skin appendages, Template:Phakomatoses, Template:Pigmentation disorders, Template:DNA replication and repair-deficiency disorder

Developmental
anomalies

Midline	Dermoid cyst · Encephalocele · Nasal glioma · PHACE association · Sinus pericranii

Nevus	Capillary hemangioma · Port-wine stain (Nevus flammeus nuchae)

Other/ungrouped	Aplasia cutis congenita · Amniotic band syndrome · Branchial cyst · Cavernous venous malformation Accessory nail of the fifth toe · Bronchogenic cyst · Congenital cartilaginous rest of the neck · Congenital hypertrophy of the lateral fold of the hallux · Congenital lip pit · Congenital malformations of the dermatoglyphs · Congenital preauricular fistula · Congenital smooth muscle hamartoma · Cystic lymphatic malformation · Median raphe cyst · Melanotic neuroectodermal tumor of infancy · Mongolian spot · Nasolacrimal duct cyst · Omphalomesenteric duct cyst · Poland anomaly · Rapidly involuting congenital hemangioma · Rosenthal–Kloepfer syndrome · Skin dimple · Superficial lymphatic malformation · Thyroglossal duct cyst · Verrucous vascular malformation · Birthmark

M: INT, SF, LCT

anat/phys/devp

noco(i/b/d/q/u/r/p/m/k/v/f)/cong/tumr(n/e/d), sysi/epon

proc, drug (D2/3/4/5/8/11)

Cytoskeletal defects

Microfilaments

Myofilament

Actin	Hypertrophic cardiomyopathy 11 · Dilated cardiomyopathy 1AA · DFNA20 · Nemaline myopathy 3

Myosin	Elejalde syndrome · Hypertrophic cardiomyopathy 1, 8, 10 · Usher syndrome 1B · Freeman–Sheldon syndrome · DFN A3, 4, 11, 17, 22; B2, 30, 37, 48 · May-Hegglin anomaly

Troponin	Hypertrophic cardiomyopathy 7, 2 · Nemaline myopathy 4, 5

Tropomyosin	Hypertrophic cardiomyopathy 3 · Nemaline myopathy 1

Titin	Hypertrophic cardiomyopathy 9

Other

Fibrillin (Marfan syndrome, Weill-Marchesani syndrome, ) · Filamin (FG syndrome 2, Boomerang dysplasia, Larsen syndrome, Terminal osseous dysplasia with pigmentary defects)

1/2	Keratinopathy (keratosis, keratoderma, hyperkeratosis): KRT1 (Striate palmoplantar keratoderma 3, Epidermolytic hyperkeratosis, IHCM) · KRT2E (Ichthyosis bullosa of Siemens) · KRT3 (Meesmann juvenile epithelial corneal dystrophy) · KRT4 (White sponge nevus) · KRT5 (Epidermolysis bullosa simplex) · KRT8 (Familial cirrhosis) · KRT10 (Epidermolytic hyperkeratosis) · KRT12 (Meesmann juvenile epithelial corneal dystrophy) · KRT13 (White sponge nevus) · KRT14 (Epidermolysis bullosa simplex) · KRT17 (Steatocystoma multiplex) · KRT18 (Familial cirrhosis) · KRT81/KRT83/KRT86 (Monilethrix) · Naegeli–Franceschetti–Jadassohn syndrome · Reticular pigmented anomaly of the flexures

3	Desmin: Desmin-related myofibrillar myopathy · Dilated cardiomyopathy 1I GFAP: Alexander disease Peripherin: Amyotrophic lateral sclerosis

4	Neurofilament: Parkinson's disease · Charcot–Marie–Tooth disease 1F, 2E · Amyotrophic lateral sclerosis

5	Laminopathy: LMNA (Mandibuloacral dysplasia, Dunnigan Familial partial lipodystrophy, Emery-Dreifuss muscular dystrophy 2, Limb-girdle muscular dystrophy 1B, Charcot–Marie–Tooth disease 2B1) · LMNB (Barraquer–Simons syndrome) · LEMD3 (Buschke–Ollendorff syndrome, Osteopoikilosis) · LBR (Pelger-Huet anomaly, Hydrops-ectopic calcification-moth-eaten skeletal dysplasia)

Microtubules

Kinesin	Charcot–Marie–Tooth disease 2A · Hereditary spastic paraplegia 10

Dynein	Primary ciliary dyskinesia · Short rib-polydactyly syndrome 3 · Asphyxiating thoracic dysplasia 3

Other	Tauopathy · Cavernous venous malformation

Membrane

Spectrin: Spinocerebellar ataxia 5 · Hereditary spherocytosis 2, 3 · Hereditary elliptocytosis 2, 3

Ankyrin: Long QT syndrome 4 · Hereditary spherocytosis 1

Catenin

APC (Gardner's syndrome, Familial adenomatous polyposis) · plakoglobin (Naxos syndrome) · GAN (Giant axonal neuropathy)

Other

desmoplakin: Striate palmoplantar keratoderma 2 · Carvajal syndrome · Arrhythmogenic right ventricular dysplasia 8

plectin: Epidermolysis bullosa simplex with muscular dystrophy · Epidermolysis bullosa simplex of Ogna

plakophilin: Skin fragility syndrome · Arrhythmogenic right ventricular dysplasia 9

centrosome: PCNT (Microcephalic osteodysplastic primordial dwarfism type II)

see also cytoskeletal proteins
B structural (perx, skel, cili, mito, nucl, sclr) · DNA/RNA/protein synthesis (drep, trfc, tscr, tltn) · membrane (icha, slcr, atpa, abct, othr) · transduction (iter, csrc, itra), trfk

Genetic disorder, membrane: Channelopathy

Calcium channel

Voltage-gated	CACNA1A (Familial hemiplegic migraine 1, Episodic ataxia 2, Spinocerebellar ataxia type-6) · CACNA1C (Timothy syndrome, Brugada syndrome 3, Long QT syndrome 8) · CACNA1F (Ocular albinism 2, CSNB2A) · CACNA1S (Hypokalemic periodic paralysis 1, Thyrotoxic periodic paralysis 1) · CACNB2 (Brugada syndrome 4)

Ligand gated	RYR1 (Malignant hyperthermia, Central core disease) · RYR2 (CPVT1, ARVD2)

Sodium channel

Voltage-gated	SCN1A (Familial hemiplegic migraine 3, GEFS+ 2, Febrile seizure 3A) · SCN1B (Brugada syndrome 6, GEFS+ 1) · SCN4A (Hypokalemic periodic paralysis 2, Hyperkalemic periodic paralysis, Paramyotonia congenita, Potassium-aggravated myotonia) · SCN4B (Long QT syndrome 10) · SCN5A (Brugada syndrome 1, Long QT syndrome 3) · SCN9A (Erythromelalgia, Febrile seizure 3B, Paroxysmal extreme pain disorder, Congenital insensitivity to pain)

Constitutively active	SCNN1B/SCNN1G (Liddle's syndrome) · SCNN1A/SCNN1B/SCNN1G ( Pseudohypoaldosteronism 1AR)

Potassium channel

Voltage-gated	KCNA1 (Episodic ataxia 1) · KCNA5 (Familial atrial fibrillation 7) · KCNC3 (Spinocerebellar ataxia type-13) · KCNE1 (Jervell and Lange-Nielsen syndrome, Long QT syndrome 5) · KCNE2 (Long QT syndrome 6) · KCNE3 (Brugada syndrome 5) · KCNH2 (Short QT syndrome) · KCNQ1 (Jervell and Lange-Nielsen syndrome, Romano-Ward syndrome, Short QT syndrome, Long QT syndrome 1, Familial atrial fibrillation 3) · KCNQ2 (BFNS1}

Inward-rectifier	KCNJ1 (Bartter syndrome 2) · KCNJ2 (Andersen-Tawil syndrome, Long QT syndrome 7, Short QT syndrome) · KCNJ11 (TNDM3) · KCNJ18 (Thyrotoxic periodic paralysis 2)

Chloride channel

CFTR (Cystic fibrosis, Congenital absence of the vas deferens) · CLCN1 (Thomsen disease, Myotonia congenita) · CLCN5 (Dent's disease) · CLCN7 (Osteopetrosis A2, B4 · BEST1 (Vitelliform macular dystrophy) · CLCNKB (Bartter syndrome 3)

TRP channel

TRPC6 (FSGS2) · TRPML1 (Mucolipidosis type IV)

Connexin

GJA1 (Oculodentodigital dysplasia, Hallermann–Streiff syndrome, Hypoplastic left heart syndrome) · GJB1 (Charcot–Marie–Tooth disease X1) · GJB2 (Keratitis–ichthyosis–deafness syndrome, Ichthyosis hystrix, Bart–Pumphrey syndrome, Vohwinkel syndrome) · GJB3/GJB4 (Erythrokeratodermia variabilis, Progressive symmetric erythrokeratodermia) · GJB6 (Clouston's hidrotic ectodermal dysplasia)

Porin

AQP2 (Nephrogenic diabetes insipidus 2)

see also ion channels
B structural (perx, skel, cili, mito, nucl, sclr) · DNA/RNA/protein synthesis (drep, trfc, tscr, tltn) · membrane (icha, slcr, atpa, abct, othr) · transduction (iter, csrc, itra), trfk

Ichthyosis hystrix

Contents

Ichthyosis hystrix, Curth-Macklin type

Ichthyosis hystrix, Lambert type

Hystrix-like ichthyosis with deafness syndrome

Ichthyosis hystrix, Baefvertstedt type

See also

References