raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:89838

Autosomal recessive generalized epidermolysis bullosa simplex

Synonyms: Autosomal recessive generalized EBS

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare, inherited, epidermolysis bullosa simplex characterized by neonatal onset of generalized or, less frequently, localized acral blistering. Milia are rare but atrophic scarring and dystrophic nails usually occur, along with focal keratoderma (palms and soles). Severe generalized blistering may cause perinatal death or persist during the entire life. Extracutaneous involvement is common, including anemia, growth retardation, oral cavity abnormalities (blisters and erosions, and caries) and constipation.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal recessive generalized epidermolysis bullosa simplexAutosomal recessive generalized EBS
frEpidermolyse bulleuse simple généralisée autosomique récessiveEBS généralisée autosomique récessive
deEpidermolysis bullosa simplex, generalisierte, autosomal-rezessiveEBS, generalisierte, autosomal-rezessive
esEpidermólisis ampollosa simple generalizada autosómica recesivaEBS generalizada autosómica recesiva · Epidermólisis bullosa simple generalizada autosómica recesiva
itEpidermolisi bollosa semplice generalizzata autosomica recessivaEBS generalizzata autosomica recessiva
nlAutosomaal recessieve gegeneraliseerde epidermolysis bullosa simplexAutosomaal recessieve gegeneraliseerde EBS
ptEpidermólise bolhosa generalizada simples autossómica recessiva
plAutosomalne recesywne pęcherzowe oddzielanie się naskórka, postać prostaPęcherzowe oddzielanie się naskórka, postać prosta autosomalna recesywna
csKRT14-vázaná epidermolysis bullosa simplexEBS-AR KRT14
ukАутосомно-рецесивний простий генералізований бульозний епідермолізАутосомно-рецесивний генералізований ЕБС
zh单纯型大疱性表皮松解症,常染色体隐性遗传K14型KRT14相关常染色体隐性遗传性单纯型大疱性表皮松解症
trEpidermolizis bülloza simpleks, otozomal resesif K14EBS-AR KRT14 · EBS, otozomal çekinik K14 · KRT14-ilişkili otozomal çekinik EBS · KRT14-ilişkili otozomal çekinik epidermoliz bülloza simpleks

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601001Evalidated
OMIM619599BTNTvalidated
ICD-10Q81.0NTBTattributedvalidated
ICD-11EC30NTBTattributedvalidated
MONDO0010976Evalidated
UMLSC5680184Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KRT14Disease-causing germline mutation(s) inAssessedHGNC:6416ENSG0000018684714806617q21.2keratin 147526933[PMID]
KRT5Disease-causing germline mutation(s) inAssessedHGNC:6442ENSG0000018608114804012q13.13keratin 531312705[PMID]_31302245[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families19 casesWorldwideCase(s)Validated[EXPERT]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

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HPO phenotypes

20 annotations · validated 2021-03-19
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0008066Abnormal blistering of the skin
HP:0001231Abnormal fingernail morphology
HP:0008388Abnormal toenail morphology
HP:0000962Hyperkeratosis
HP:0200097Oral mucosal blisters
HP:0007446Palmoplantar blistering
HP:0000972Palmoplantar hyperkeratosis
HP:0200041Skin erosion
Occasional (29-5%)
HP:0001802Absent toenail
HP:0007589Aplasia cutis congenita on trunk or limbs
HP:0001075Atrophic scars
HP:0001810Dystrophic toenail
HP:0001508Failure to thrive
HP:0031464Genital blistering
HP:0000953Hyperpigmentation of the skin
HP:0001010Hypopigmentation of the skin
HP:0001056Milia
HP:0003764Nevus
HP:0000989Pruritus
HP:0001807Ridged nail

Annotation source: 18713255[PMID]

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Sources for this card