raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:370002

Focal palmoplantar keratoderma with joint keratoses

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

A rare, genetic, isolated palmoplantar keratoderma characterized by focal hyperkeratotic lesions affecting the pressure- and mechanical trauma-bearing areas of the palms and soles, as well as hyperkeratotic plaques involving joints, including knees, elbows, ankles and dorsa of interphalangeal joints.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFocal palmoplantar keratoderma with joint keratoses
frKératodermie palmoplantaire focale avec kératose localisée aux articulations
deFokale Palmoplantarkeratose mit Hyperkeratose an den Gelenken
esQueratodermia palmoplantar focal con queratosis en las articulaciones
itCheratoderma palmoplantare focale con cheratosi articolare
nlFocale palmoplantaire keratodermie met keratosen van gewrichten
ptQueratodermia palmoplantar focal com queratoses articulares
plOgniskowy rogowiec dłoniowo-podeszwowy z keratozą stawów
csFokální palmoplantární keratoderma s kloubními keratózami
ukФокальна долонно-підошовна кератодермія з суглобовими кератозами
zh局灶性掌跖角化伴关节角化病
trEklem keratoz ile seyreden fokal palmoplantar keratoderma

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM148700NTBTvalidated
ICD-10Q82.8NTBTattributedvalidated
ICD-11EC20.31NTBTattributedvalidated
MONDO0018252Evalidated
UMLSC4755302Evalidated

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
DSG1Disease-causing germline mutation(s) inAssessedHGNC:3048ENSG0000013476012567018q12.1desmoglein 116484817[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validated16484817[PMID]

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.

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Sources for this card