raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:493

Familial keratoacanthoma

Synonyms: Hereditary keratoacanthoma · Multiple keratoacanthoma

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
All ages
Status
active

A rare inherited skin cancer syndrome characterized by the coexistence of features typical of both multiple self-healing squamous epithelioma and generalized eruptive keratoacanthoma, such as multiple small miliary-type lesions, larger self-healing lesions, and nodulo-ulcerative lesions. Lesions do not have a predilection for the mucosal surfaces.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFamilial keratoacanthomaHereditary keratoacanthoma · Multiple keratoacanthoma
frKératoacanthome familialKératoacanthome héréditaire · Kératoacanthome multiple
deKeratoakanthom, familiäresKeratoakanthom, hereditäres · Keratoakanthome, multiple
esQueratoacantoma familiar
itCheratoacantoma familiareEpitelioma multiplo squamoso a guarigione spontanea
nlFamiliaal keratoacanthoomErfelijk keratoacanthoom · Meervoudig keratoacanthoom
ptQueratoacantoma familiarEpitelioma escamoso múltiplo de remissão espontânea
plRodzinny rogowiak kolczystokomórkowyDziedziczny rogowiak kolczystokomórkowy · Mnogi rogowiak kolczystokomórkowy
csFamiliární keratoakantomHereditární keratoakantom · Mnohočetný keratoakantom
ukСімейна кератоакантомаСпадкова кератоакантома · Множинна кератоакантома
zh家族性角化棘皮瘤遗传性角化棘皮瘤
trAilesel keratoakantomÇoklu keratoakantom · Kalıtsal keratoakantom

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10L85.8NTBTattributedvalidated
ICD-112C31.1NTBTindexvalidated
MONDO0018851Evalidated
MeSHC536150Evalidated
UMLSC5848325Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—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

7 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0009720Adenoma sebaceum
HP:0000962Hyperkeratosis
HP:0200034Papule
HP:0200042Skin ulcer
HP:0001482Subcutaneous nodule
Frequent (79-30%)
HP:0012740Papilloma
Occasional (29-5%)
HP:0002664Neoplasm

Run the differential on the 5 obligate / very frequent terms

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Sources for this card