raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:295044

Macrodactyly of fingers

Synonyms: Macrodactyly of hand

Type
Morphological anomaly
Group
Disorder
Age of onset
Infancy, Neonatal
Status
active

A rare non-syndromic limb overgrowth characterized by isolated congenital enlargement of some or all tissue elements of one or more digits of the hand, typically within a peripheral nerve territory, with the nerve itself being elongated, as well as increased in diameter. The index finger is most commonly affected. If two or more digits are involved, these are always adjacent. The enlargement may be progressive with disproportionate or static with proportionate growth and can be unilateral or bilateral. Patients may experience pain and reduced range of motion.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMacrodactyly of fingersMacrodactyly of hand
frMacrodactylie des doigtsMacrodactylie de la main
deMakrodaktylie der FingerMakrodaktylie der Hand
esMacrodactilia de los dedos de la manoMacrodactilia de la mano
itMacrodattilia delle dita delle maniMacrodattilia delle mani
nlMacrodactylie van vingersMacrodactylie van hand
ptMacrodactilia dos dedos da mãoMacrodactilia da mão
plMakrodaktylia palców dłoniMakrodaktylia dłoni
csMakrodaktylie prstů rukyMakrodaktylie ruky
ukМакродактилія пальців рукМакродактилія кисті
zh巨指症巨指畸形
trParmak makrodaktilisiMakrodaktili el

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM155500BTNTvalidated
ICD-10Q74.0NTBTattributedvalidated
ICD-11LB97.0Especificvalidated
MONDO0017474Evalidated
MeSHC537720Evalidated
UMLSC0574044Evalidated
GARD8529Evalidated

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 (1):

Children (2):

4

Genes

0 direct · 1 via subtypes

Orphanet records no gene directly on this code.

Recorded by Orphanet on subtypes of this disorder:

GeneSubtypeAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PIK3CAORPHA:295239Macrodactyly of fingers, unilateralDisease-causing somatic mutation(s) inAssessedHGNC:8975ENSG000001218791718343q26.32phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha23100325[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0001 / 100 000WorldwideValue and classValidated39062202[PMID]_ORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

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HPO phenotypes

8 annotations · validated 2024-02-05
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0100746Macrodactyly of finger
Frequent (79-30%)
HP:0005922Abnormal hand morphology
HP:0004276Exostoses of hand bones
HP:0100774Hyperostosis
Occasional (29-5%)
HP:0012185Constrictive median neuropathy
HP:0012186Entrapment neuropathy of the ulnar nerve at elbow
HP:0006101Finger syndactyly
HP:0010493Long metacarpals

Run the differential on the 1 obligate / very frequent terms

Annotation source: 37846420[PMID]_36175329[PMID]_32299688[PMID]

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Sources for this card