raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2800

Extramammary Paget disease

Type
Disease
Group
Disorder
Age of onset
Adult, Elderly
Status
active

A rare skin tumor characterized by predominantly intraepithelial growth of an adenocarcinoma which may either arise primarily in the skin (primary extramammary Paget disease) or result from intraepithelial spread of a visceral carcinoma (secondary extramammary Paget disease). The lesion is typically located in the anogenital region, presenting as a scaly, oozing, pruritic or painful erythematous plaque often resembling eczema. It may exhibit an invasive component with a significant risk of lymph node metastasis.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enExtramammary Paget disease
frMaladie de Paget extramammaire
dePaget-Syndrom, extramammär
esEnfermedad de Paget extramamaria
itMalattia extramammaria di Paget
nlExtramammaire ziekte van Paget
ptDoença de Paget extra-mamária
plPozasutkowa postać choroby Pageta
csExtramamární Pagetova nemoc
ukЕкстрамаммарна хвороба Педжета
zh乳房外Paget病
trMeme dışı Paget hastalığı

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM167300Evalidated
ICD-10C44.5NTBTattributedvalidated
ICD-112E64.1Especificvalidated
MONDO0008177Evalidated
MeSHD010145Evalidated
UMLSC0030186Evalidated
GARD4192Evalidated
MedDRA10068223Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ERBB2Disease-causing somatic mutation(s) inAssessedHGNC:3430ENSG0000014173616487017q12erb-b2 receptor tyrosine kinase 231860417[PMID]
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

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

7

Sources for this card