raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:158673

Localized dystrophic epidermolysis bullosa, acral form

Synonyms: Localized DEB, acral form

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A form of localized dystrophic epidermolysis bullosa characterized by trauma-induced blistering confined primarily to the hands and feet. Healing of blisters is associated with milia formation, atrophic scarring and dystrophic nails. There is no extracutaneous involvement.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLocalized dystrophic epidermolysis bullosa, acral formLocalized DEB, acral form
frEpidermolyse bulleuse dystrophique localisée, forme acraleEBD localisée, forme acrale
deEpidermolysis bullosa, dystrophe lokalisierte, akrale FormDEB, lokalisierte, akrale Form
esEpidermólisis ampollosa distrófica localizada forma acralDEB localizada forma acral · Epidermólisis bullosa distrófica acral · Epidermólisis bullosa distrófica localizada forma acral
itEpidermolisi bollosa distrofica localizzata, forma acraleDEB localizzata, forma acrale
nlGelokaliseerde dystrofische epidermolysis bullosa, acrale vormGelokaliseerde DEB, acrale vorm
ptEpidermólise bolhosa distrófica localizada, forma acral
plPęcherzowe dystroficzne oddzielanie się naskórka zlokalizowane, postać kończynowaDystroficzne dominujące pęcherzowe oddzielanie się naskórka kończynowe
csAkrálně dystrofická bulózní epidermolýzaDEB, akrální · DEB-ac
ukЛокалізований дистрофічний бульозний епідермоліз, акральна формаЛокалізований ДЕБ, акральна форма
zh肢端营养不良性大疱性表皮松解症= en
trAkral distrofik epidermolizis bülloza= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q81.2NTBTattributedvalidated
ICD-11EC32NTBTattributedvalidated
MONDO0015552Evalidated
UMLSC4518087Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
COL7A1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:2214ENSG000001142701201203p21.31collagen type VII alpha 1 chain
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families10 familiesWorldwideFamily(ies)ValidatedORPHANET
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.

6

HPO phenotypes

20 annotations · validated 2020-10-06
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0008066Abnormal blistering of the skin
HP:0002814Abnormality of the lower limb
HP:0031045Acral blistering
HP:0007473Crusting erythematous dermatitis
HP:0000992Cutaneous photosensitivity
HP:0004334Dermal atrophy
HP:0008391Dystrophic fingernails
HP:0001810Dystrophic toenail
HP:0010783Erythema
HP:0025474Erythematous plaque
HP:0002043Esophageal stricture
HP:0001030Fragile skin
HP:0001056Milia
HP:0000972Palmoplantar hyperkeratosis
HP:0001029Poikiloderma
HP:0001009Telangiectasia
HP:0000963Thin skin
Occasional (29-5%)
HP:0009811Abnormality of the elbow
HP:0002815Abnormality of the knee
HP:0008390Recurrent loss of toenails and fingernails

Annotation source: 20301481[PMID]_11260188[PMID]_29179948[PMID]

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Sources for this card