raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:171723

White sponge nevus

Synonyms: Hereditary mucosal leukokeratosis · White sponge nevus of Cannon

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Status
active

White sponge nevus (WSN) is a rare and autosomal dominant genetic disease in which the oral mucosa is white or greyish, thickened, folded, and spongy. The onset is early in life, and both sexes are affected equally. Other common sites include the tongue, floor of the mouth, and alveolar mucosa.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enWhite sponge nevusHereditary mucosal leukokeratosis · White sponge nevus of Cannon
frNaevus blanc spongieuxHamartome muqueux spongieux · Leucokératose mucosale héréditaire · Naevus spongieux blanc de Cannon · White sponge naevus
deSchleimhaut-Naevus, weißerLeukokeratose, mukosale, hereditäre · Weißer Schleimhaut-Naevus Typ Cannon
esNevo blanco esponjosoLeucoqueratosis mucosa hereditaria · Nevo blanco esponjoso de Cannon
itNevo bianco spongiformeLeucocheratosi ereditaria delle mucose · Nevo bianco spongiforme di Cannon
nlWitte sponsachtige naevusErfelijke mucosale leukokeratose · Witte sponsachtige naevus van Cannon
ptNevo branco esponjoso
plZnamię gąbczaste białeDziedziczna leukokeratoza błony śluzowej · Znamię gąbczaste białe Cannona
csDědičná slizniční leukokeratóza= en
ukБілий губчастий невусСпадковий лейкокератоз слизових оболонок · Білий губчастий невус Кеннона
zh白色海绵状痣遗传性粘膜白斑病
trBeyaz sünger nevüsCannon beyaz sünger nevüsü · Kalıtsal mukozal lökokeratoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM193900Evalidated
OMIM615785BTNTvalidated
ICD-10Q38.6NTBTindexvalidated
ICD-11DA02.0NTBTindexvalidated
MONDO0015748Evalidated
MeSHD053529Evalidated
UMLSC1721005Evalidated
GARD8501Evalidated
MedDRA10072666Evalidated

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 (2):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
KRT13Disease-causing germline mutation(s) inAssessedHGNC:6415ENSG0000017140114806517q21.2keratin 137493031[PMID]_10561721[PMID]_11379896[PMID]_14600690[PMID]
KRT4Disease-causing germline mutation(s) inAssessedHGNC:6441ENSG0000017047712394012q13.13keratin 410652003[PMID]_12828738[PMID]_23182699[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card